A4 Quattro Cabriolet L4-2.0L Turbo (BWT) (2009)
‹› The threads of shear bolts (that are not screwed into ECM) are coated with a locking compound. For this reason, the threads must be heated with
the heat gun to remove both bolts.
‹› The threads of both shear bolts (that are screwed into ECM) are not coated with a locking compound. The threads in the ECM housing must not be
heated and do not require to be heated (unintentional heating of ECM).
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Using heat gun, direct the heat gun nozzle at shear bolt of retaining tab for approx. 20 to 25 seconds.
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Using locking pliers, remove shear bolt.
The procedure for second shear bolt is exactly the same.
Remove the protective housing from the Engine Control Module (ECM) (J623).