Processor evidence
In a TunerPro research discussion about BMW M3.3.1, a contributor reports an 80196 processor in the units being researched. This is a community hardware report, not a Bosch specification for all M3.3.1 revisions. Confirm the marking on the actual board.
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.