96 SL500 R129 M119. I hooked up my star diagnostics and it would not talk to the car, ok it's old so maybe star wont work. So I tried my old reliable Carsoft 7.4 which always worked on this car. Not this time it would not show any of the cars modules. Ok this is weird so I plugged in the old snap-on brick and it said the diagnostic module was not communicating. Finally a culprit!!!
Looked it up on EPC and it shows 015 545 04 32 replaced by 015 545 29 32 in the apparatus case.
opened it up and its not there ??? checked star finder and there is a picture of it next to the engine main ECU in the apparatus case............not on my car!
Any one know where this module is located? Pictures enclosed

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88 W124 3.0
96 R129 119eng
06 ML350
98 ML320 sold
02 CLK55 amg