Engine Control Module: Notes

Special tools and workshop equipment required

Heat gun 220 V/50 Hz VAS1978/14 with nozzle attachment from wiring harness repair kit VAS1978
Small, commercially available locking pliers (vise grips)

NOTE:

The Engine Control Module (ECM) -1- is bolted to a protective housing -5-. To make removing the shear bolts -4- for the retaining tabs -2- more difficult, the threads are coated with locking compound.

Fig 1: Identifying Engine Control Module (ECM) Components

Courtesy of AUDI OF AMERICA, LLC

To disconnect the connectors from the ECM (for example to connect the test box or to replace the ECM), the metal housing must be removed.