Family scope
Bosch's vehicle component application catalogue uses the broad designation M 3.8 for selected Audi and Volkswagen engines. More specific variant designations are indexed below; the broad catalogue entry does not by itself identify the exact hardware.
Intel MCS-96 evidence
The EcuProg7 project documents an M3.8.2 test unit with an 87C196KR; its external-flash adapter is a research modification. A researcher examining an M3.8.3 unit also identified an 87C196-family processor. This does not confirm the processor in every M3.8-labelled unit.
Identification and scope
Record the Bosch and vehicle-manufacturer ECU numbers, engine and vehicle details, software ID and board or processor markings before using technical information. This page does not establish pin functions or interchangeability between variants.