Buy 2018 Audi S4 Engine Timing Chain Guide (Lower). A6 Allroad; Left; Upper. A6 Quattro; Left; Upper Sportback, Slack - OEM Audi Part # 06M109513G (06M-109-513-G, 06M109513J)

Engine Timing Chain Guide. Rail.
Crank To Cam. Guide for the Timing Chain.

Engine Timing Chain Guide

A6 Allroad; Left; Upper. A6 Quattro; Left; Upper. A7 Sportback; Left; Upper. A8 Quattro; Left; Upper. A8 Quattro; Upper; Left. Q8; Tension Arm; Left. RS Q8; Tension Arm; Left. RS5; Left; Slack Side. RS6 Avant; Left; Upper. RS7 Sportback; Left; Slack Side. S4; Upper; Left. S5; Left; Slack Side. S7 Sportback; Left; Upper. S8; Upper; Left. SQ5 Sportback; Left; Upper. SQ5; Left; Upper. SQ7; Primary; Center. SQ8; Tension Arm; Left.
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 2018 Audi S4 has high mileage along with any of these other symptoms, contact our service department for expert diagnosis.