The timing chain does not have a specific replacement interval like a timing belt. However, it is recommended to inspect the chain regularly and replace it if signs of wear or stretching are observed. 5.2 Can I replace the timing chain myself? Replacing the timing chain in an Audi 4.2 V8 is a complex task that requires specialized knowledge and I checked the compression then and found #1 cylinder has ~150psi and the other 3 are 0, so I assume the valves are bent/stuck open. Cheers, Michael. 2013 Allroad. 2004 996 C4S. 2008 Land Rover LR3. 1981 Alfa Romeo GTV6 3.0. 09-03-2021 10:30 PM #4. vincent_nguyen2. Just got an official email reply from Audi saying - Dear Stephen Thank you for your email. I can confirm the reccomended intervals for the timing belt to be changed, is every 5 years or 140’000 miles whichever comes first for the above vehicle. If you have any further questions, please don’t hesitate to contact me on the details below Kind Aug 30, 2023. #24. As always, a chain will last longest with a true 30 viscosity oil, and will suffer with a high particulate load. Many of today's chains now use coated pins, to extend chain life. In particular, the better manufacturers. Timing Chain Service Interval Guest-only advertisement. Register or Log In now! Is there any consensus on the mileage/age for B8 timing chain and tensioner replacement? I have a 2011 A4 with only 35k miles, but it is now nearly six years old and has the same number of cold starts as an average car with 50-60k miles. Essex. Jan 29, 2016. #3. Chains don't need changing as often as rubber belts. The chain is supposed to last the life of the car which in dealer language means 8 years. Servicing with the correct oil regularly should mean it never needs changing but we all know things can go wrong time to time. The good part about a chain is that it will give 2012 GL 350. OM642 Timing Chain Replacement DIY - GL 350 Blutech. Part 1 Disassembly of the Right Side Valve Cover. OK, so you start off by removing the right side air cleaner and the Y-shaped air duct that leads to the turbo. MB calls the “right side” of the engine the USA Passenger side of the engine so keep that in mind. I average about 40,000 miles a year on my car; in my eyes the timing belt was designed to last ~10 years give or take, so even though I've hit the mileage, I fell pretty confident in it lasting for a few thousand more. I also believe that if VW set the timing interval at 130,000 miles; they've likely tested it to close to double that. zyco7F.