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Home >> Audi >> 2009 >> Q7 4.2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (3.0L - Cylinder Head & VALVETRAIN - Engine Code: CNRB) >> 15 Cylinder Head, VALVETRAIN >> VALVETRAIN >> Notes

15 Cylinder Head, VALVETRAIN: VALVETRAIN: Notes

WARNING: This page is about a different car, the 2015 Audi Q7, 2014 Audi Q7, and 2013 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

Risk of damaging valves and piston heads after working on valve train.

  • The motor must not be started for about 30 minutes after installing camshafts because the hydraulic equalization elements must seat themselves.
  • To ensure valves do not strike pistons when starting, carefully rotate engine at least two full revolutions.
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