Timing Chain Alignment Marks

This component's repair procedure is part of the camshaft repair procedure, Audi does not provide a separate procedure for this component.

Refer to Camshaft, Engine - Service and Repair - Procedures for further information on this component
Service and Repair






^ If old chain is re-installed, install chain so that colored markings are in line (arrows).





^ If new chain is installed, distance between notches -A- and -B- on camshafts must be 16 rollers on chain. Illustration shows exact positions of 1st and 16th rollers on sprockets.
^ Notch -A- is offset slightly toward inside in relation to chain roller -1-.

Check correct setting of camshafts again after installing both bearing caps on intake and exhaust camshaft chain sprockets:





^ Two markings on camshafts must be in line with two arrows on bearing caps (arrows).





^ Distance between two arrows on bearing caps or between colored markings is 16 rollers on drive chain.
^ Notch on exhaust camshaft is offset slightly toward inside in relation to chain roller -1-