A3 Quattro L4-2.0L Turbo (CBFA) (2009)
Engine Control Module: Service and Repair
Engine Control Module
Special tools, testers and auxiliary items required
‹› Heat gun - 1 - (from the wiring harness repair kit (VAS 1978))
‹› Nozzle attachment - 2 - (also from the wiring harness repair kit (VAS 1978))
‹› Commercially available locking pliers (vise grips) - 3 -
‹› Vehicle diagnostic, testing, and information system (VAS 5051B)
The engine control module - 1 - is connected with a metal retainer - 2 and 5 -. To make removing shear bolts - 4 - for retaining tabs - 2 - more
difficult, the threads are coated with locking compound.
To disconnect connectors from Engine Control Module (ECM) (e.g. to connect test box or to replace ECM), the protective housing must be removed.
Removing
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If Engine Control Module (ECM) was replaced, select diagnostic object " Replacing Engine Control Module (ECM)" in "Guided Functions".
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Turn ignition and remove ignition key.
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Pry off caps on wiper arms using a screwdriver.
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Loosen nuts - arrows - by several turns.