Mercedes Benz 400E A/C Compressor from Discount AC Parts www.discountacparts.com Mercedes Benz 400E A/C Compressor are available for all type of Mercedes Benz models from Discount AC Parts at discount prices. Visit Discount AC Parts online store and purchase quality tested Mercedes Benz 400E A/C Compressor part with the full warranty and free shipping offers. For more detail...
400E Auxiliary Fan Circut questions I have a 92 400E. Auxiliary fan does not turn on whae it should (either while AC is on or when engine gets over 105C). I have tested the fans and they function, so issue is elswhere.
I have been going nuts trying to find a schematic with no success, so if anyone could help with that, thanks in advance. Here is what I have found so far. The wire that connects to the top of the preresistor was rusted in half. Looks like the preresistor is shorted (o hms) so ordered a new one. I think i messed something up by following some advice I recieved in a post by shorting together the wires that went to either side of the preresistor (taking the resistor out of the circut).
Fan turned for a second but heard someting pop in the area of the fuse box (fan stopped turning, expect without the resistor, it turned fast and drew too much current?) but was unable to find anything blown. Some questions...
1. Are there any fuses between 12v and the preresistor? If so where? 2. Is it possible that I blew the relay? Is it fused? 3. Are there online schematics or somethig I can reference?
Checking to see if you got help. As another newbie I am not sure I can help.
The following pertains to my 93 300e 4matic. I apologize if does not apply to your 400e.
I just replied to another thread about my radiator fan issue. The fans on my car are pulling way to much current. When wired normally the fuse that blows also runs the driver window and sunroof I believe.
If everything in your interior is still working, then it is likely a problem other than in the fuse box. I saw another post mentioning a fan motor issue where the owner pulled the motor winding and corrected his issue without removing the fans. Also mentioned bearing issue but I believe you stated that you fans turn freely. __________________ Joel Schmeltzer Sherwood, Oregon '93 300e 4matic
Sounds like a different issue. I would look at the aux fan relay. The fuse in the fuse box (at least in the 400e) is specifaclly for the relay. The lager fuse (30 amp) is for the aux fan circut.
This is getting more odd as I venture further. This morning I replaced the 30 amp fuse, and the relay with no change.
So, if I turn on the key with the AC on max with the AC pressure snesor (red) jumpered, the relay closes but the fan does not turn. I know the fans work becuase I can manually close the second relay (which normally closes when the engine temp exceeds a certain temp) and the fans turn on full speed. The pre-resistor is brand new, the relay and the fuse are brand new and the AC pressure switch is jumpered. What am I missing?? Last edited by rangelic; 09-25-2010 at 11:07 AM.
I had a problem with the fans and my '92 400E. The fan's relays would get over-heated and the fans would stop turning. The mechanic I had said the problem was the fans themselves and I could get new relays, but that wouldn't fix the problem. He was right. Good luck
Thanks Patricia. My problem is that the fans never start up in the first place. It's getting more complicated as I have replaced the relay and the fuse. I can manually activate the relay and the fans turn *high speed "temp circuit) but the low speed circuit (for the air conditioner) is where the problem is. When I jump the AC pressure connector, turn on the AC and turn the key, the relay engages but I never get 12v to the pre-resistor (which is also new).
If I wasn't already bald, this would definitely be a hair thinning excersize. Thankfully, fall is here and the 90 + days are gone, so I have some time.
I have a 1993 400E. The air conditioner is acting weird. I have taken it to the local Mercedes dealer a couple of time and they say nothing is wrong. Once they kept it for 3 days to test it. It blows cold air only some of the time while driving. After an hour or so, it will only blow warm air. Is this a thermostat problem? I want to get a little more info before taking to the local dealer again. http://www.justanswer.com/mercedes/2cdaa-1993-400e-air-conditioner-acting-weird.html
Hi, the fuses are located at the back of the engine compartment on the left or right hand side. They usually put the fan fuses in a small separate fuse box near the main fuse box or near the battery. There are two relays for the auxiliary fan. Did you replace both relays? if you have a test light or a voltmeter and a fused jumper wire with 1/4" male spade ends on the wires I can instruct you on how to test the circuit? Customer :
are both relays the same size the relay that i replaced was 89 86 01 001 542 82 19 i did not see anorher one that is identical to this eurotec : There should be two relays side by side in the back of the fuse box. I'll attach a diagram. eurotec :
Full Size Image
eurotec :
Click on the image above. The relays are at position B and C.
the diagram showes two relays that would appear to be about two inches long the relay that i purchased from the mb dealer appears to be about 4 inches which would have included both shitches. if it does and the auxillary fan does not work unless it is clipped dierctly to the fuse box . what else should i try the diagram was very helpful by the way eurotec :
Can you give me the part number of the relay that you replaced?
It is usually in a separate fuse box outside of the main fuse box. Customer :
that is my original question where is it located, or what owould i be looking for Customer :
I have tested the female side of the fan plug and am not getting power eurotec :
What did you test it with? Customer :
tesl light eurotec :
Ok, then use your test light to check power to the relay. Just remove the relay and turn the key on and probe each pin in the connector and tell me which ones have
The auxiliary fuse holders are located at the back of the engine compartment on the left or right hand side. They usually put the fan fuses in a small separate fuse box near the main fuse box or near the battery. Customer :
i wont have access too the vehicle until 4 eurotec :
Ok, just post your findings and I'll reply asap. Customer :
400E MERCEDES BENZ 400E 1992 1992 mercedes e 400 main engine wiring harness failure. harness fried due to poor wiring insulation. More 400E MERCEDES BENZ 400E 1992 Automobile repair shop showed me the problem with the wiring harness. the wiring harness wires were More 400E MERCEDES BENZ 400E 1992 Consumer states in 08/02 experienced problems w/air conditioning cutting off. vehicle checked by dl More
400E MERCEDES BENZ 400E 1992 Engine wiring harness cracked, replaced at cost of $728 @ mileage of 86,226 on 10/21/03. vehicle ha More 400E MERCEDES BENZ 400E 1993 Engine wiring harness wire insulation has almost completely disintegrated. very poor gas mileage an More
400E MERCEDES BENZ 400E 1992 I was driving 80 going on highway 696 when the car suddenly died. i was in the left lane of a 3 lan More 400E MERCEDES BENZ 400E 1992 Main engine wiring harness is currently deteriorating causing the wires to be exposed to an intense More 400E MERCEDES BENZ 400E 1993 The electrical insulation of the main wiring harness has virtually disintegrated, apparently from th More
I am the owner of a 92 400E (143,000) miles. She has been good to me. However, today the AC just does not work. I tried to run it in EC mode, regular mode and using the fan but the blower does not come on. Any ideas or suggestions before I take her to the dealer along with one arm and leg as a inspection payment?
You did not mention in your post whether there was any trickle of air coming from the vents, and if there was some air, was it cool or just ambient?
If the system was working fine yesterday, and the blower failed to come on, first check the fuse on the blower circuit. It is located in the fuse box mounted near the firewall (not sure about a 400E, but on an E320, the fuse/relay box is on the firewall right at the master brake cylinder).
If the fuse is ok, and there is a trickle of cold air coming from the vents (which you shouold notice when the car is moving), then in all likelyhood, you have burned up the blower motor. I have had three Benzes in the last seven years, and everyone of them has seen the HVAC blower motor fail at anything from 100k miles up to 185k miles on my 300E.
Strange, I just had air conditioning trouble on my 400E of the same year with almost the same amount of miles, a couple hundred off. I just moved from San Diego, my first name is Matt and my last name starts with D! Anyway on mine the belt tensioner went bad causing the belt to slip and turning the compressor off. It would be errie if that was your problem as well. __________________ 1992 Mercedes-Benz 400E
RE: blower fuse, on mine, at least, there is a separate blower fuse located outside the fuse box. It's a strip fuse and it's in a small black box bolted to the shock absorber mount. It flips open from the side. Make sure you check that fuse.
The failure Zeronero mentioned above was probably caused when the compressor controller "sensed" a difference in speed between the compressor (which would slow down with a slipping belt) and engine crank speed.
This is a failsafe system that disengages the magnetic clutch because the differences in speed between the compressor and engine is assumed to be because the A/C compressor may be mechanically failing and seizing up as it fails. As it seizes, it will stop rotating, even though the engine attempts to continue running.
The HVAC blower motor is not tied to this failsafe circuit; so, the blower should continue to run even if the A/C compressor has been disengaged. The fact that the blower no longer works is more than likely due to a defective switch in the A/C control module, or to a failure of the blower motor. In my three failures, 100% were due to motor failure!
1993 Mercedes Benz 400E Radiator Behr BEHR RADIATOR, NEW -- 20.9 x 19.2 x 1.6 in. core size; Without oil cooler; Made from the latest technology; Provides optimum performance and efficiency; Quiet, light, space-saving, and reliable; Replaces OE number 1245009803; With 12-month or 12,000-mile Behr warranty.
The 1992 Mercedes Benz 400 E was a midsize sedan with four doors and seated five. The 400E was built from 1992 to 1995 by the German automotive company with an engine taken from the larger S-Class sedan. 1992 was the first year that a V8 engine was used in a Mercedes Benz midsize car.
The 400E had a 4.2-liter V-8 gasoline engine producing 268 horsepower at 5,700 rpm. The engine had 295 foot-pounds of torque at 3,900 rpm. The engine had four valves per cylinder, hydraulic valve lifters and an overhead cam. The engine was multi-point fuel injected with five main bearings and a compression ratio of 9.0 to 1. The engine block was made of light alloy.
The sedan was rear-wheel-drive with four automatic gears and overdrive.
M1 Starter Lower left rear of engine, below oil filter M2 Blower motor Center front of cowl, behind panel 232-3 M2/2 Module box blower motor Right side of component compartment, behind Module box 253-5 M3/1 Fuel pump 1 Forward of rear axle 238-5 M3/2 Fuel pump 2 Forward of rear axle 238-5 M4 Auxiliary fan Front of radiator 232-2 M4m1 Left auxiliary fan Front of radiator 255-3 M4m2 Right auxiliary fan Front of radiator 255-3
M6/1 Wiper motor Center front of cowl, behind panel 232-3 M6/2 Left headlamp wiper motor Left front of engine compartment 230-5 M6/3 Right headlamp wiper motor Right front of engine Compartment 230-1 M6/4 Rear window wiper motor Center of tailgate, behind panel (wagon) 243-5
M9 Aspirator blower, in-car temperature sensor Top of passenger footwell, behind dashboard M10/3 Left front power window motor Left front door 240-6 M10/4 Right front power window motor Right front door M10/5 Left rear power window motor Left rear door M10/6 Right rear power window motor Right rear door M11 Automatic antenna Left side of trunk (sedan) 232-5 M11 Automatic antenna Right rear quarter panel (wagon) 242-3
M12 Sliding/pop-up roof drive unit Left front corner of trunk (sedan) 232-5 M12 Sliding/pop-up roof drive unit Left rear quaner panel (wagon) 242-1 M13 Coolant pump Right side of engine compartment M14/1, M14/2 Supply pump, central locking system Below right side of rear seat 233-3 M15 ASR charging pump On brake booster, below master cylinder 253-1
M16 Cruise control actuator Lower left side of engine 238-2 M16/1 Electronic accelerator/cruise control/idle speed control actuator Lower left side of engine
M20 Adjustable steering column motor Left side of steering column 233-6 M21/2 Electrically adjustable and heated front passenger rearview mirror In right side rearview mirror M24 Rear window sun shade motor Under rear hatshelf, in trunk 245-6 M25 Left front power seat motor group Under left front seat 232-6 M26 Right front power seat motor group Under right front seat 236-5
N6 A/C compressor control unit Right side of component compartment behind battery 239-3 N7 Exterior lamp failure monitoring unit Rear of fuse box, position K N10 Combination relay (turn/hazard signal, heated rear window, wiper motor) Rear of fuse box, position H N13 Rear window intermittent wiper timer Left corner of tailgate, behind panel (wagon) 241-5 N14 Preglow time-limit relay Left side of engine compartment, on inner fender
N16 Engine systems control unit (MAS) Right side of component compartment, behind battery 255-2 N16/1 Base module Right side of component compartment, in Module box 250-1 N16/3 Fuel pump relay Right side of component compartment, behind battery 229-3 N16/4 Fuel pump,relay with kickdown cut-out Right side of component compartment, behind battery 229-3 N22 ACC pushbutton control unit Center console, above radio
N24 SRS voltage converter Front passenger footwell, behind right kickpanel 240-1 N25/1 Left front seat heater relay Beneath carpeting, forward of left front seat 239-2
S24 Fresh/recirculated air switch Center console, above radio S25/5 105/115 “C Temperature switch auxiliary fan high speed/emergency cut-out Top left side of engine 230-3 S25/6 50 °C Temperature switch Lower left rear of engine
W5 Ground, engine Front of engine, on A/C compressor 230-4
X53/1 Connector, Hall-effect sensor/automatic climate control Connected to X53/5
K1 Overvoltage protection relay (5-pole) Right side of component compartment, behind battery 239-3 K1/1 Overvoltage protection relay, 87E (7-pole) Right side of component compartment, behind battery 239-3 K1/2 Overvoltage protection relay, 87E/87L/30a (9-pole) Right side of component compartment, behind battery: Gasoline 252-5 K1/2 Overvoltage protection relay, 87E/87L/30a (9-pole) Right side of component compartment, behind battery: Diesel 252-1
A9 A/C compressor Lower left front of engine A9k1 Electromagnetic clutch part of A9 230-4 A9l1 RPM sensor part of A9 230-4 A10 Left seat belt extender Behind left B-pillar 246-5 A11 Right seat belt extender Behind right B-pillar
B10/1 Heater core temperature sensor Center of dashboard, below radio 240-3 B10/4 In-car temperature sensor Center of windshield header, part of dome lamp 235-1 B10/5 Outside temperature sensor Right side of component compartment 232-3 B10/6 Evaporator temperature sensor Right side of steering column 233-6
B10/8 Coolant temperature sensor (climate control) On cylinder head 245-4 B11/2 Coolant temperature sensor (EZL/CIS-E, LH)(4-pole) Top rear of cylinder head (6 cylinder)230-3Top front of engine (8 cylinder)249-2 B11/4 Coolant temperature sensor (EDS) Top left side of engine, on coolant elbow248-2
B13 Coolant temperature gauge sensor Left side of engine, above intake manifold230-3 B14 Outside temperature sensor (outside temperature indicator) Left front corner of front bumper 238-4 B17/2 Intake air temperature sensor (CIS-E) On air filter housing B17/7 Intake air temperature sensor Front of engine, behind radiator 248-3 B18 Altitude correction capsule Right side of component compartment 229-4
Mercedes Benz 400E A/C Compressor from Discount AC Parts
www.discountacparts.com
Mercedes Benz 400E A/C Compressor are available for all type of Mercedes Benz models from Discount AC Parts at discount prices. Visit Discount AC Parts online store and purchase quality tested Mercedes Benz 400E A/C Compressor part with the full warranty and free shipping offers. For more detail...
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2011/8/24(水) 午後 5:53
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400E Auxiliary Fan Circut questions I have a 92 400E. Auxiliary fan does not turn on whae it should (either while AC is on or when engine gets over 105C). I have tested the fans and they function, so issue is elswhere.
http://mercedesforum.com/forum/mercedes-e-class-9/400e-auxiliary-fan-circut-questions-44490/
2011/8/24(水) 午後 5:59
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I have been going nuts trying to find a schematic with no success, so if anyone could help with that, thanks in advance. Here is what I have found so far. The wire that connects to the top of the preresistor was rusted in half. Looks like the preresistor is shorted (o hms) so ordered a new one. I think i messed something up by following some advice I recieved in a post by shorting together the wires that went to either side of the preresistor (taking the resistor out of the circut).
2011/8/24(水) 午後 5:59
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Fan turned for a second but heard someting pop in the area of the fuse box (fan stopped turning, expect without the resistor, it turned fast and drew too much current?) but was unable to find anything blown. Some questions...
1. Are there any fuses between 12v and the preresistor? If so where?
2. Is it possible that I blew the relay? Is it fused?
3. Are there online schematics or somethig I can reference?
2011/8/24(水) 午後 6:00
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Look forward to some help.
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2011/8/24(水) 午後 6:00
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Checking to see if you got help.
As another newbie I am not sure I can help.
The following pertains to my 93 300e 4matic. I apologize if does not apply to your 400e.
I just replied to another thread about my radiator fan issue. The fans on my car are pulling way to much current. When wired normally the fuse that blows also runs the driver window and sunroof I believe.
2011/8/24(水) 午後 6:01
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If everything in your interior is still working, then it is likely a problem other than in the fuse box. I saw another post mentioning a fan motor issue where the owner pulled the motor winding and corrected his issue without removing the fans. Also mentioned bearing issue but I believe you stated that you fans turn freely.
__________________
Joel Schmeltzer
Sherwood, Oregon
'93 300e 4matic
2011/8/24(水) 午後 6:01
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Hi Joel,
Sounds like a different issue. I would look at the aux fan relay. The fuse in the fuse box (at least in the 400e) is specifaclly for the relay. The lager fuse (30 amp) is for the aux fan circut.
This is getting more odd as I venture further. This morning I replaced the 30 amp fuse, and the relay with no change.
2011/8/24(水) 午後 6:02
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So, if I turn on the key with the AC on max with the AC pressure snesor (red) jumpered, the relay closes but the fan does not turn. I know the fans work becuase I can manually close the second relay (which normally closes when the engine temp exceeds a certain temp) and the fans turn on full speed. The pre-resistor is brand new, the relay and the fuse are brand new and the AC pressure switch is jumpered. What am I missing??
Last edited by rangelic; 09-25-2010 at 11:07 AM.
2011/8/24(水) 午後 6:03
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I had a problem with the fans and my '92 400E.
The fan's relays would get over-heated and the fans would stop turning.
The mechanic I had said the problem was the fans themselves and I could get new relays, but that wouldn't fix the problem.
He was right. Good luck
2011/8/24(水) 午後 6:04
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Thanks Patricia. My problem is that the fans never start up in the first place. It's getting more complicated as I have replaced the relay and the fuse. I can manually activate the relay and the fans turn *high speed "temp circuit) but the low speed circuit (for the air conditioner) is where the problem is. When I jump the AC pressure connector, turn on the AC and turn the key, the relay engages but I never get 12v to the pre-resistor (which is also new).
2011/8/24(水) 午後 6:05
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If I wasn't already bald, this would definitely be a hair thinning excersize. Thankfully, fall is here and the 90 + days are gone, so I have some time.
2011/8/24(水) 午後 6:06
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83 - Climate Control System
Maintenance Jobs
• 8312 - Checking, correcting A/C refrigerant charge
• 8381 - Replacing dust filter for heating/ventilation
• 8382 - Replacing active charcoal filter
• 8383 - Replacing recirculating air filter
http://www.benzworld.org/forums/w126-s-se-sec-sel-sd/1395058-service-manual-index.html
2011/8/24(水) 午後 6:10
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I have a 1993 400E. The air conditioner is acting weird. I have taken it to the local Mercedes dealer a couple of time and they say nothing is wrong. Once they kept it for 3 days to test it. It blows cold air only some of the time while driving. After an hour or so, it will only blow warm air. Is this a thermostat problem? I want to get a little more info before taking to the local dealer again.
http://www.justanswer.com/mercedes/2cdaa-1993-400e-air-conditioner-acting-weird.html
2011/8/24(水) 午後 6:14
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http://car-and-safety.com/mercedes-benz-400e-safety/mercedes-benz-400e-1992.htm#10247345&search=1992 mercedes benz 400e. i am concerned about the safety of the wiring harness on this vehicle.
2011/8/24(水) 午後 6:34
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Mercedes-Benz 400E where is the fues for the auxillary fan
Customer Question
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where is the fues for the auxillary fan located. I have replaced the relay. fan still does not come on when the air conditioner is engaged
http://www.justanswer.com/mercedes/4v0sk-mercedes-benz-400e-fues-auxillary-fan.html
2011/8/24(水) 午後 6:47
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Already Tried:
relplacing auxillary fan relay switch. When i directly connect the fan to the fuse box it runs.
2011/8/24(水) 午後 6:48
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Hi, the fuses are located at the back of the engine compartment on the left or right hand side. They usually put the fan fuses in a small separate fuse box near the main fuse box or near the battery. There are two relays for the auxiliary fan. Did you replace both relays? if you have a test light or a voltmeter and a fused jumper wire with 1/4" male spade ends on the wires I can instruct you on how to test the circuit?
Customer :
2011/8/24(水) 午後 6:50
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are both relays the same size the relay that i replaced was 89 86 01 001 542 82 19 i did not see anorher one that is identical to this
eurotec :
There should be two relays side by side in the back of the fuse box. I'll attach a diagram.
eurotec :
Full Size Image
eurotec :
Click on the image above. The relays are at position B and C.
2011/8/24(水) 午後 6:51
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the diagram showes two relays that would appear to be about two inches long the relay that i purchased from the mb dealer appears to be about 4 inches which would have included both shitches. if it does and the auxillary fan does not work unless it is clipped dierctly to the fuse box . what else should i try the diagram was very helpful by the way
eurotec :
Can you give me the part number of the relay that you replaced?
2011/8/24(水) 午後 6:52
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It is usually in a separate fuse box outside of the main fuse box.
Customer :
that is my original question where is it located, or what owould i be looking for
Customer :
I have tested the female side of the fan plug and am not getting power
eurotec :
What did you test it with?
Customer :
tesl light
eurotec :
Ok, then use your test light to check power to the relay. Just remove the relay and turn the key on and probe each pin in the connector and tell me which ones have
2011/8/24(水) 午後 6:54
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The auxiliary fuse holders are located at the back of the engine compartment on the left or right hand side. They usually put the fan fuses in a small separate fuse box near the main fuse box or near the battery.
Customer :
i wont have access too the vehicle until 4
eurotec :
Ok, just post your findings and I'll reply asap.
Customer :
you have been very helpful thank you
eurotec :
You're quite welcome
2011/8/24(水) 午後 6:55
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400E MERCEDES BENZ 400E 1992 1992 mercedes e 400 main engine wiring harness failure. harness fried due to poor wiring insulation. More
400E MERCEDES BENZ 400E 1992 Automobile repair shop showed me the problem with the wiring harness. the wiring harness wires were More
400E MERCEDES BENZ 400E 1992 Consumer states in 08/02 experienced problems w/air conditioning cutting off. vehicle checked by dl More
2011/8/24(水) 午後 6:59
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400E MERCEDES BENZ 400E 1992 Engine wiring harness cracked, replaced at cost of $728 @ mileage of 86,226 on 10/21/03. vehicle ha More
400E MERCEDES BENZ 400E 1993 Engine wiring harness wire insulation has almost completely disintegrated. very poor gas mileage an More
2011/8/24(水) 午後 6:59
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400E MERCEDES BENZ 400E 1992 I was driving 80 going on highway 696 when the car suddenly died. i was in the left lane of a 3 lan More
400E MERCEDES BENZ 400E 1992 Main engine wiring harness is currently deteriorating causing the wires to be exposed to an intense More
400E MERCEDES BENZ 400E 1993 The electrical insulation of the main wiring harness has virtually disintegrated, apparently from th More
2011/8/24(水) 午後 7:00
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400E MERCEDES BENZ 400E 1992 Vehicle checked and found that insulation on all of the fuel injection wiring ,temperature sensor an More
2011/8/24(水) 午後 7:01
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400E Air Conditioner not working
Greetings
I am the owner of a 92 400E (143,000) miles. She has been good to me. However, today the AC just does not work. I tried to run it in EC mode, regular mode and using the fan but the blower does not come on. Any ideas or suggestions before I take her to the dealer along with one arm and leg as a inspection payment?
http://www.peachparts.com/shopforum/showthread.php?t=73607
2011/8/24(水) 午後 9:49
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You did not mention in your post whether there was any trickle of air coming from the vents, and if there was some air, was it cool or just ambient?
If the system was working fine yesterday, and the blower failed to come on, first check the fuse on the blower circuit. It is located in the fuse box mounted near the firewall (not sure about a 400E, but on an E320, the fuse/relay box is on the firewall right at the master brake cylinder).
2011/8/24(水) 午後 9:50
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If the fuse is ok, and there is a trickle of cold air coming from the vents (which you shouold notice when the car is moving), then in all likelyhood, you have burned up the blower motor. I have had three Benzes in the last seven years, and everyone of them has seen the HVAC blower motor fail at anything from 100k miles up to 185k miles on my 300E.
2011/8/24(水) 午後 9:51
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Mode of failure on these blowers is that the motor carbon brushes just wear out with time.
Cost to replace the blower motor is around $400 including the new motor.
Hope this helps.
Good luck.
2011/8/24(水) 午後 9:51
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Strange, I just had air conditioning trouble on my 400E of the same year with almost the same amount of miles, a couple hundred off. I just moved from San Diego, my first name is Matt and my last name starts with D! Anyway on mine the belt tensioner went bad causing the belt to slip and turning the compressor off. It would be errie if that was your problem as well.
__________________
1992 Mercedes-Benz 400E
2011/8/24(水) 午後 9:52
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RE: blower fuse, on mine, at least, there is a separate blower fuse located outside the fuse box. It's a strip fuse and it's in a small black box bolted to the shock absorber mount. It flips open from the side. Make sure you check that fuse.
2011/8/24(水) 午後 9:53
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The failure Zeronero mentioned above was probably caused when the compressor controller "sensed" a difference in speed between the compressor (which would slow down with a slipping belt) and engine crank speed.
2011/8/24(水) 午後 9:55
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This is a failsafe system that disengages the magnetic clutch because the differences in speed between the compressor and engine is assumed to be because the A/C compressor may be mechanically failing and seizing up as it fails. As it seizes, it will stop rotating, even though the engine attempts to continue running.
2011/8/24(水) 午後 9:55
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The HVAC blower motor is not tied to this failsafe circuit; so, the blower should continue to run even if the A/C compressor has been disengaged. The fact that the blower no longer works is more than likely due to a defective switch in the A/C control module, or to a failure of the blower motor. In my three failures, 100% were due to motor failure!
Good luck.
2011/8/24(水) 午後 9:57
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Do a search on AC fuse. Odds are that's the cause of your problem
2011/8/24(水) 午後 10:00
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http://www.peachparts.com/shopforum/showthread.php?t=73607
2011/8/24(水) 午後 10:04
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1993 Mercedes Benz 400E Radiator Behr
BEHR RADIATOR, NEW -- 20.9 x 19.2 x 1.6 in. core size; Without oil cooler; Made from the latest technology; Provides optimum performance and efficiency; Quiet, light, space-saving, and reliable; Replaces OE number 1245009803; With 12-month or 12,000-mile Behr warranty.
Fits: OEM# : 1245009803, W124 Chassis.
Material: Aluminum Core
http://www.car-stuff.com/1993mercedesbenz400eradiator.htm
2011/8/24(水) 午後 11:10
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WDBEA34E5PB925963
Year:
1993
Make/Model:
Mercedes-Benz
400-Class
400E
http://www.lemonfree.com/WDBEA34E5PB925963.html
2011/8/24(水) 午後 11:17
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The 1992 Mercedes Benz 400 E was a midsize sedan with four doors and seated five. The 400E was built from 1992 to 1995 by the German automotive company with an engine taken from the larger S-Class sedan. 1992 was the first year that a V8 engine was used in a Mercedes Benz midsize car.
http://www.ehow.co.uk/list_7372485_1992-400-mercedes-benz-specifications.html
2011/8/24(水) 午後 11:20
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Engine And Transmission
The 400E had a 4.2-liter V-8 gasoline engine producing 268 horsepower at 5,700 rpm. The engine had 295 foot-pounds of torque at 3,900 rpm. The engine had four valves per cylinder, hydraulic valve lifters and an overhead cam. The engine was multi-point fuel injected with five main bearings and a compression ratio of 9.0 to 1. The engine block was made of light alloy.
The sedan was rear-wheel-drive with four automatic gears and overdrive.
2011/8/24(水) 午後 11:21
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124 830 03 83, A/C Receiver Drier
http://ps05.aucfan.com/aucview/yahoo/m74583784/
http://www.h5.dion.ne.jp/~benz124/
2011/8/24(水) 午後 11:44
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クライメートコントロール
http://www.sakamoto.cc/column/83/cool/cool.shtml
2011/8/24(水) 午後 11:58
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９３年式４００Eに乗っていますが、最近アイドリングが不調になる事が頻繁に起こります。カブる感じがするのですが、対処法を教えて頂けますでしょうか？
http://questionbox.jp.msn.com/qa2276094.html
2011/8/24(水) 午後 11:58
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一番怪しいのはフューエルポンプ・フィルターです。エンジン始動直後にクルマからおりて後方にまわったときに
セミがなくような「ジー」という音がするようなら、まず間違いありません。国産車の感覚からすると、意外な部分の消耗品です。過去にＷ１２６の５００ＳＥにのっていましたが、ほっておくと、高速道での走行時にアクセルふんでも１２０～１３０ｋｍ／ｈ以上でなくなったり、信号待ちでエンストしたりします。
2011/8/25(木) 午前 0:00
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Ｗ１２４特有のエンジンルーム内のハーネスの劣化でしょう。このころのベンツってリサイクル素材のプラスチックを各所に導入してましたが、その質がよくなく、とくにエンジンルームに余裕のないＶ８エンジン搭載車だとかなり痛んでいる可能性があります。ただ、フューエルポンプ・フィルター以外の原因って他にも考えられますので、まずディーラーにみてもらいましょう。では。
2011/8/25(木) 午前 0:01
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エアマスセンサー不良やバキュームホースなどからのエアーの吸い込み、IGコイルなど点火系等不良によるミスフャイヤー等も考えられると思います。 今現状でできそうなのは、エンジンルームを覗いてバキュームホースが外れかかっていないかを見てみるのはどうでしょう？
2011/8/25(木) 午前 0:02
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結局何が原因か判らないままアイドリングの不調はなくなったようです。
アイドルコントロールバルブの不良・オーバーボルテージリレーの不良・エンジンハーネスの劣化等々・・・
2011/8/25(木) 午前 0:03
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エアコンの修理
http://www.h5.dion.ne.jp/~benz124/maintframe.htm
http://www.h5.dion.ne.jp/~benz124/image61.jpg
2011/8/25(木) 午前 0:21
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http://www.wcs1988.co.jp/maintainance.htm
2011/8/25(木) 午前 0:28
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http://www.benzworld.org/forums/w124-e-ce-d-td-class/1506315-anyone-hosting-supplement-14-a-2.html
2011/8/25(木) 午前 9:58
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F22/1 Auxiliary fuse holder, heated seats Left rear of engine compartment
F22/2 Auxiliary fuse holder, telephone, terminal 30 In engine compartment, next to fuse/Relay box (F1) 254-6
2011/8/25(木) 午前 9:58
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M1 Starter Lower left rear of engine, below oil filter
M2 Blower motor Center front of cowl, behind panel 232-3
M2/2 Module box blower motor Right side of component compartment, behind Module box 253-5
M3/1 Fuel pump 1 Forward of rear axle 238-5
M3/2 Fuel pump 2 Forward of rear axle 238-5
M4 Auxiliary fan Front of radiator 232-2
M4m1 Left auxiliary fan Front of radiator 255-3
M4m2 Right auxiliary fan Front of radiator 255-3
2011/8/25(木) 午前 10:00
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M5/1 Windshield washer pump Front of windshield washer fluid reservoir 230-2
M5/2 Headlamp washer pump Front of windshield washer fluid reservoir 230-2
M5/3 Rear window washer pump Behind right rear quarter panel (wagon) 242-4
2011/8/25(木) 午前 10:01
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M6/1 Wiper motor Center front of cowl, behind panel 232-3
M6/2 Left headlamp wiper motor Left front of engine compartment 230-5
M6/3 Right headlamp wiper motor Right front of engine Compartment 230-1
M6/4 Rear window wiper motor Center of tailgate, behind panel (wagon) 243-5
2011/8/25(木) 午前 10:01
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M9 Aspirator blower, in-car temperature sensor Top of passenger footwell, behind dashboard
M10/3 Left front power window motor Left front door 240-6
M10/4 Right front power window motor Right front door
M10/5 Left rear power window motor Left rear door
M10/6 Right rear power window motor Right rear door
M11 Automatic antenna Left side of trunk (sedan) 232-5
M11 Automatic antenna Right rear quarter panel (wagon) 242-3
2011/8/25(木) 午前 10:02
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M12 Sliding/pop-up roof drive unit Left front corner of trunk (sedan) 232-5
M12 Sliding/pop-up roof drive unit Left rear quaner panel (wagon) 242-1
M13 Coolant pump Right side of engine compartment
M14/1, M14/2 Supply pump, central locking system Below right side of rear seat 233-3
M15 ASR charging pump On brake booster, below master cylinder 253-1
2011/8/25(木) 午前 10:03
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M16 Cruise control actuator Lower left side of engine 238-2
M16/1 Electronic accelerator/cruise control/idle speed control actuator Lower left side of engine
2011/8/25(木) 午前 10:04
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M20 Adjustable steering column motor Left side of steering column 233-6
M21/2 Electrically adjustable and heated front passenger rearview mirror In right side rearview mirror
M24 Rear window sun shade motor Under rear hatshelf, in trunk 245-6
M25 Left front power seat motor group Under left front seat 232-6
M26 Right front power seat motor group Under right front seat 236-5
2011/8/25(木) 午前 10:04
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N6 A/C compressor control unit Right side of component compartment behind battery 239-3
N7 Exterior lamp failure monitoring unit Rear of fuse box, position K
N10 Combination relay (turn/hazard signal, heated rear window, wiper motor) Rear of fuse box, position H
N13 Rear window intermittent wiper timer Left corner of tailgate, behind panel (wagon) 241-5
N14 Preglow time-limit relay Left side of engine compartment, on inner fender
2011/8/25(木) 午前 10:06
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N16 Engine systems control unit (MAS) Right side of component compartment, behind battery 255-2
N16/1 Base module Right side of component compartment, in Module box 250-1
N16/3 Fuel pump relay Right side of component compartment, behind battery 229-3
N16/4 Fuel pump,relay with kickdown cut-out Right side of component compartment, behind battery 229-3
N22 ACC pushbutton control unit Center console, above radio
2011/8/25(木) 午前 10:08
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N24 SRS voltage converter Front passenger footwell, behind right kickpanel 240-1
N25/1 Left front seat heater relay Beneath carpeting, forward of left front seat 239-2
2011/8/25(木) 午前 10:08
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S24 Fresh/recirculated air switch Center console, above radio
S25/5 105/115 “C Temperature switch auxiliary fan high speed/emergency cut-out Top left side of engine 230-3
S25/6 50 °C Temperature switch Lower left rear of engine
W5 Ground, engine Front of engine, on A/C compressor 230-4
X53/1 Connector, Hall-effect sensor/automatic climate control Connected to X53/5
2011/8/25(木) 午前 10:15
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K9 Auxiliary fan relay Rear of fuse box, location C 231-5
K10 Auxiliary fan preresistor relay Rear of fuse box, location B
2011/8/25(木) 午前 10:19
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K1 Overvoltage protection relay (5-pole) Right side of component compartment, behind battery 239-3
K1/1 Overvoltage protection relay, 87E (7-pole) Right side of component compartment, behind battery 239-3
K1/2 Overvoltage protection relay, 87E/87L/30a (9-pole) Right side of component compartment, behind battery: Gasoline 252-5
K1/2 Overvoltage protection relay, 87E/87L/30a (9-pole) Right side of component compartment, behind battery: Diesel 252-1
2011/8/25(木) 午前 10:20
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A9 A/C compressor Lower left front of engine
A9k1 Electromagnetic clutch part of A9 230-4
A9l1 RPM sensor part of A9 230-4
A10 Left seat belt extender Behind left B-pillar 246-5
A11 Right seat belt extender Behind right B-pillar
2011/8/25(木) 午前 10:22
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B10/1 Heater core temperature sensor Center of dashboard, below radio 240-3
B10/4 In-car temperature sensor Center of windshield header, part of dome lamp 235-1
B10/5 Outside temperature sensor Right side of component compartment 232-3
B10/6 Evaporator temperature sensor Right side of steering column 233-6
2011/8/25(木) 午前 10:23
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B10/8 Coolant temperature sensor (climate control) On cylinder head 245-4
B11/2 Coolant temperature sensor (EZL/CIS-E, LH)(4-pole) Top rear of cylinder head (6 cylinder)230-3Top front of engine (8 cylinder)249-2
B11/4 Coolant temperature sensor (EDS) Top left side of engine, on coolant elbow248-2
2011/8/25(木) 午前 10:24
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B13 Coolant temperature gauge sensor Left side of engine, above intake manifold230-3
B14 Outside temperature sensor (outside temperature indicator) Left front corner of front bumper 238-4
B17/2 Intake air temperature sensor (CIS-E) On air filter housing
B17/7 Intake air temperature sensor Front of engine, behind radiator 248-3
B18 Altitude correction capsule Right side of component compartment 229-4
2011/8/25(木) 午前 10:25
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A63:AC control module (300E)
A163:AC compressor control module(w/ ???)
R61:AC condenser blower motor resistor
Y11:AC compressor clutch
B146:AC compressor RPM sensor
K129:AC condenser blower motor relay
2011/8/25(木) 午前 10:56
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INDEX................................301
ACC Grounds Distribution.....312 313
ACC Power Distribution.........312 313
Air Delivery..........................303 304
Blower Control......................302 311
Component Location Table.....401
Compressor Clutch Control.....305 306 307 308 309 310
Pushbutton Control Assembly..301
http://www.benzworld.org/forums/w124-e-ce-d-td-class/1506315-anyone-hosting-supplement-14-a-2.html
2011/8/25(木) 午後 3:13
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