BZ:R350:SAF:ZGW:CGW:Central Gateway:

https://en.wikipedia.org/wiki/Mercedes-Benz_R-Class

R350

WN23No1p12b

https://en.wikipedia.org/wiki/Mercedes-Benz_R-Class

https://ja.wikipedia.org/wiki/メルセデス・ベンツ・Rクラス

2006.11

W251

https://mbworld.org/forums/r-class-w251/767449-central-gateway-cgw-location.html

Central Gateway (CGW) Location

Hello. My 08 R350's gateway is under the floor on the driver side front. I would bet that is where yours would be located also. What are your symptoms ? Did you scan the gateway? Please update this thread as gateway/canbus problems can be hard to diagnose.

Gary H.

R350 4MATIC	2006年3月 - 2012年1月	3,497 cc	272型 V型6気筒 DOHC	272 ps/35.7 kgm

7速AT	4MATIC

https://www.youtube.com/watch?v=_W244TDz744

Central Gateway Module Mercedes How To Program. In this video i will show you how central gateway module Mercedes also known as ZGW module programming or reprogramming is done. In this module there is MPU made by Motorola hc12 which stores miles, vin and service interval of the Mercedes vehicles. You can read original Central Gateway Module if possible and write to a used and new all info VIN, miles and service records. If not possible to read original central gateway module you will need to write VIN, miles and service records manually. If you dont have the Motorola hc12 programmer you can have the service done at https://karmanauto.com/product/merced... #Vehix411 #Mercedes #MercedesGatewayModule

A164 540 36 62

CGW

ZGW

https://karmanauto.com/product/mercedes-gateway-zgw-module-clone-service/

Mercedes-Benz Central Gateway Control Module Failure

ByRushit Hila • ASE CertifiedUpdated:Oct 17, 2022

https://www.youcanic.com/mercedes-benz-central-gateway-control-module-failure/

症例：多重通信エラー、

　　エンジンが作動している場合でも、OBD2で反応が無いなど、

No Communication

A common symptom of a bad Gateway Module is that there is no communication between an OBD-II scanner and one or more modules. Control modules that communicate via the Central Gateway module do not respond if the Gateway Module has failed. The engine will sometimes start and run fine, but the vehicle may go in limp mode.

ECU間の通信とかデバイス間との通信ができない場合、或る場所でのトラブル現象が

認識された時、その部位だけに注目してしまい、短絡的にそこに部位の関連に関わる

部品など交換しても根本的な解決に至らないケースもある。

　この場合、システムサーチなど活用して判断することになる。そこで、ZGW（CGW）に問題があると、そのCGWに関わる複数系統と通信が成立しない。　ここを先に対処することで、短絡的な作業回避とコスト資源の節約につながる。

If you replace the bad CGW with a new one, you will have systems that will not work because they are not coded in the CGW module.

CGW/ZGW Gateway control module stores vehicle service history, VIN, and car mileage. You will need to code the original miles and VIN in the new ZGW module by cloning the information from your old Mercedes ZGW control module. If the ZGW data cannot be read, manual coding can be performed by the dealer or a Mercedes mechanic.

https://mhhauto.com/Thread-W221-Problem-with-ZGWW221 Problem with ZGW

W221 Problem with ZGW