RS 4 Quattro Sedan V8-4.2L (BNS) (2007)
Engine Control Module: Service and Repair
Engine Control Module 1, Removing and Installing
Engine Control Module 1, Removing and Installing
Special tools, testers and auxiliary items required
‹› Heat gun.
‹› The Engine Control Module (ECM) (J623) - 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.
‹› To disconnect the electrical connectors from the Engine Control Module (ECM) (J623) (e.g. to connect the test box or to replace the ECM), the
protective housing must be removed.
Removal
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Remove the rubber seal from the plenum chamber cover in the direction of the - arrow -.
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Remove the plenum chamber cover - 1 -.
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Using a screwdriver, remove the wiper arm nut covers - 3 -.
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Loosen the wiper arm nuts - 4 - by several turns.
‹› If wiper arms cannot be removed from the wiper axles, use a commercially available puller.
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Loosen the wiper arms - 2 - from the wiper axle by rocking up and down.