Valve Stem Seals, Cylinder Head Installed: Assembling

WARNING: This page is about a different car, the 2012 Audi S5, 2011 Audi S5, and 2010 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

Assemble in reverse order of disassembling. Note the following:

-- Make sure all the roller rocker levers lie on the ends of the valve stems correctly and are clipped onto the respective hydraulic adjusting elements.

-- Install the spark plugs. Refer to the the appropriate Service Information .

-- Install the camshafts. Refer to CAMSHAFTS .

CAUTION:

Risk of damaging valves and piston heads after working on the 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 2 full revolutions.