S5 Quattro Coupe V8-4.2L (CAUA) (2009)
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Tighten bolts - 1 - and - 2 - for mechatronic unit to 2 Nm.
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Tighten Mechatronic bolts to tightening torque in specified sequence, i.e. first bolt - 1 -, then - 2 -, etc., up to - 14 -.
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Clip wiring harness - B - onto the mechatronic. At the same time, insert the tab - arrow - on backside of wiring harness into the mechatronic unit.