Checking Valve Timing - without Marks on the Cylinder Head Cover

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 Audi A6 Quattro, 2018 Audi A6, 2017 Audi A6 Quattro, 2017 Audi A6, and 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of AUDI OF AMERICA, LLC

TIP:

The combination of the shown :T40263 , : T40314 and 24 mm socket are better suited than the :T10355 for positioning the vibration damper.

-- Turn the vibration damper in the "TDC" position.

The marks applied to the cylinder head cover -arrows- must align with the marks on the chain sprockets -1-.
The notch on the vibration damper must align with the marking on the lower timing chain cover -2-.

NOTE:

If the self-made markings are no longer visible, check the valve timing. Refer to VALVE TIMING, CHECKING .

Continued for All Engines:

-- Install the vacuum pump. Refer to VACUUM PUMP, REMOVING AND INSTALLING .

-- Install the high pressure pump. Refer to HIGH PRESSURE PUMP, REMOVING AND INSTALLING .

-- Install the oil separator.

-- Install the ignition coils with power output stages. Refer to IGNITION COILS WITH POWER OUTPUT STAGES, REMOVING AND INSTALLING .

-- Install the upper timing chain cover. Refer to UPPER TIMING CHAIN COVER, REMOVING AND INSTALLING .

CAUTION:

- To ensure that the vales do not make contact when starting, carefully rotate the engine at least two full revolutions.

-- When working on the chain drive perform an adaptation using the Vehicle Diagnostic Tester.

Additional procedures. Refer to CAMSHAFT, REMOVING AND INSTALLING .