Identification
Bosch lists M 3.2 for the Audi A4 1.8 turbo AEB, November 1994 to July 1998, among other examples. Bosch component application catalogue, Audi A4.
Processor evidence
An independent MCS-96 binary-analysis project lists M3.2 among its targets. That is a research lead rather than a verified processor identification for every M3.2 hardware number. The actual MCU marking and board identity need confirmation.
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.