Engine Control Module Replacement Procedure - S4 Quattro Wagon V8-42L (BHF) (2008)
Engine Control Module: Service and Repair
Manufacturer's Scan Tool
Engine Control Module, Replacing
‹› When the engine control module is disconnected, the learned values are erased but the contents of the Diagnostic Trouble Code (DTC) memory
remain intact.
Removing engine control module
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Connect vehicle diagnostic, testing and information system VAS 5051 and select vehicle system "01 - Engine electronics" from list. Ignition must
be on.
The display on V.A.S 5051 shows control module identification code and code - 2 -.
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Display and print out control module identification.
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Switch ignition off.
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Remove rubber seal of plenum chamber cover in direction of - arrow -.
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Remove plenum chamber cover - 1 - to front.
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Pry off two caps - 3 - using screwdriver.