S6 Quattro Sedan V10-5.2L (BXA) (2007)
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Carefully pull cowl grill only as far as necessary out of retainer on windshield.
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Remove Engine Control Module (ECM) (J623) - 2 -.
Remove Engine Control Module (ECM) (J623).
To increase the difficulty with which the ECM connectors can be accessed, the ECM is secured in a metal housing with retaining tabs and shear bolts.
The threads of the shear bolts - 4 - (that are not installed in ECM) are coated with a locking compound. For this reason, the threads must be heated
with the heat gun to remove both bolts.