The Motronic 1.7 and subfamilies, and the M3 and it's variants are the next generation of BMW ECUs. M1.1 and M1.3 was used on the M20, M30 and M40 engines, whilst M1.2 was used on the S38 and M70, which are the early E34 M5 engines and the early V12s.īMW DME M1.7, M1.7.1, M1.7.2, M3.1 and M3.3 The BMW DME M1.1 (and similar, 1.2 and 1.3) is an early Bosch Motronic ECU, used on all of the 6 Cylinder BMWs up until 1990, and a few more after that. If you have a Hex code from your scan tool, but need to find it in a Decimal list, use the Converter below. Clicking the titles of the descriptionsĪll codes from DDE4 onwards are listed as the HEX value. To search for your code, follow the list below, or press ctrl+f to search within this page. Make sure you are looking at the correct system, sometimes a code reader will convert to decimal (our normal 0-10 system) and it may be confusing. This means if you see an "11", it could be TheĮxtra "numbers" in hex are A,B,C,D,E and F. Hex format is a hexadecimal number, used by computers to count in base 16, so there are 16 numbers before "10", instead of our ten.
The code reader or diagnostic tool will ask the module for any stored codes, and it will receive a number in hex format. This is because many fault code tables, like our OBD code listĪre showing the OBD2 generic codes. You don't recognise, or one that doesn't appear in a search. If you are reading codes from specific BMW modules, you may find you get a code
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