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This is the genuine OE timing chain guide, part number 079109470, used in the timing chain system of Audi and Volkswagen V6 and V8 engines from roughly 2007 to 2015. It is listed for left and right positions depending on the application, covering cars from the A4 and Q5 up to the R8, RS7 and Touareg Hybrid. It suits owners doing a timing chain service who want the factory part rather than an aftermarket guide. The main trade-off is that it is one guide, not a full kit, so the tensioner, other guides and chains usually have to be bought separately.
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This is a genuine OE replacement engine timing chain guide, part number 079109470. It is used in timing chain system service on select Audi and Volkswagen V6 and V8 engines. It is listed for both left and right engine positions, depending on the application.
It is used when replacing worn guides during timing system repair. The description lists these issues it helps address: timing chain noise from a worn guide surface, chain alignment issues during engine operation, and wear-related chain movement in high-mileage engines.
Fitment varies by model year and engine configuration. Before ordering, verify the engine code, bank, and left or right position, and check the vehicle against the exact fitment table. Timing system service should be performed with proper engine timing procedures and alignment tools.
