Buy 2003 Audi S6 4.2L V8 A/T Avant Wagon Engine Timing Chain Guide (Upper). A3. Atlas. Atlas Cross CC, Along, BEARINGS, TT - OEM Audi Part # 066109514A (066-109-514-A, 066109514)

Guide for the timing chain. Idler to Cam. Engine Timing Chain Guide. Rail and Guide Assembly.

Engine Timing Chain Guide

Fits A3, Q7, TT

A3. Atlas. Atlas Cross sport. CC. Eos. Eurovan. Passat. Passat; Upper. Q7. R32. Touareg. TT.
Timing Chain - Repair or Replace
Your engine's timing chain can stretch over time resulting in a check engine light that comes along with excessive noise from your engine's timing cover. If the chain has broken, which is a rare occurrence, the engine will not start. If your 2003 Audi S6 has high mileage along with any of these other symptoms, contact our service department for expert diagnosis.