Timing Chain Tensioning Rail – 07K 109 231 C
Timing Chain Tensioning Rail, OE number 07K 109 231 C. Sub-group 231 identifies this as a timing chain tensioning rail rather than the chain itself — check which component you actually need before ordering. Fits the 2.5 TFSI 5-cylinder (07K) engine family. Revision index C.
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Technical specifications
| Part Number | 07K 109 231 C |
| SKU | AUD-07K109231C |
| Brand | |
| Category | Timing Chains & Belts |
| OEM Cross-Reference | 07K109231A |
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3–5 business days. Free on orders over $150.
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Order before 2 PM for next business day delivery.
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Customer reviews
Verified feedback from Audi owners and independent workshops.
3.7
3 reviews
Niall Adeyemi
March 11, 2026
Rattle on start-up gone
Second one of these I have bought, this time for the Q5 8R. The chain has proper hardened links rather than the soft pins on cheap copies. I booked it in with a specialist rather than risk an interference engine on the driveway. Result is the engine is noticeably quieter at idle than it has been for a year.
Daniel Marchetti
November 26, 2025
Quiet engine again
Cross-referenced the OE number against my 2021 A5 F5 before ordering. Torqued the tensioner to spec and rotated it twice by hand before starting. Everything in the box matched the parts diagram with nothing missing. Result is the top-end rattle on cold start has completely gone.
Talia Rossi
June 1, 2025
Missing a tensioner bolt
Bought for a 2010 Q7 4L. One of the tensioner bolts was missing from the kit and held the job up a day. Would not order the same one again.