Quote:
Originally Posted by jay_bob
There are 4 modules on a W211 that connect the engine and body CAN buses together. The ZGW is the primary connection and the only one that can pass packets between the two networks. There are 3 other modules have double connection to the CAN buses, so they can read and write each bus, but cannot bridge data between them. I reverse engineered the wiring diagrams and made a one page tree diagram of the networking in a W211 and then found the actual diagram in the Star Finder utility.
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I found my notes, here are the 4 modules that participate in both buses:
N93 Central Gateway
N80 Steering Column Controller
A1 Instrument Cluster
N73 Ignition Switch
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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)
both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)
1998 E300DT sold to TimFreeh
1987 300TD sold to vstech
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