A3 Quattro L4-2.0L Turbo (CBFA) (2009)
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Disconnect metal retainers from connectors.
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Remove both retainer bolts from Engine Control Module (ECM) (J623).
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Disengage connector from Engine Control Module (ECM) (J623) and remove connector.
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Remove used Engine Control Module (ECM) (J623 ) and connect new one.
Installing
Installation is in reverse order.
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After that, the Engine Control Module (ECM) ( J623) must be equipped with the metal retainer.
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Clean threaded holes for shear bolts of locking compound residue. Cleaning can be performed with a thread cutter (tap).
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Always use new shear bolts.
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Activate engine control module in "Guided Functions" operating mode under "Replace engine control module" on the vehicle diagnosis and
service system (VAS 5051B).