A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009)
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The threads of the shear bolts - 4 - (that are not screwed into the 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 - 3 -, that are screwed into the 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 the ECM).
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Set the adjustment on the heat gun as shown in the illustration, with the temperature potentiometer - 2 - set to maximum heat and the two-stage air
flow switch - 3 - set to level 3.
CAUTION!
By heating the threads, the retaining tabs, shear bolts and parts of the metal housing become very hot. Do not burn yourself on this!
Make sure that only the threads are heated as much as possible, and not any of the surrounding parts. Possibly cover these parts.
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Warm threads on connector-side shear bolts for approximately 25 to 30 seconds.
