I have been given the codes for troubleshooting the 300E (M103) but need to know if those codes are same for 400E M119.
I can pull the codes to get the Check Engine Light turned off. Are there different codes for M119 V8? Thanks
Gary

Yes, expect many/most of the codes to be different because the M103 is CIS-E, and the M119 is LH, to save confusion obtain the correct listing...

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On cis-e systems the fuel system computer recorded the check engine info, on 1992 & later EFI fuel systems M.B. used a seperate computer called the diagnostic module that spies on fuel system & accelerator computers.
Most cars w/DM can reset the check engine by cutting the power supply for 10 sec. The 1996 (V8 & V12) & 1997 (4 & 6 cyl) went back to using the fuel computer to record ck eng. info. The codes are different for all of these systems. The only codes that are the same are OBD2.