S4 and S5 with the 3.0L V6 TFSI engine only Spark plugs - Replace First at 55,000 kilometers or 6 years, whichever occurs first and thereafter, every 60,000 kilometers or 6 years, whichever occurs first A4, A5, A6, TT, TTS, Q5, Q5 Hybrid with 2.0L TFSI engine, and A8 W12 only Spark plugs - Replace First at 55,000 kilometers or 6
I have the motor out of my 2007 S4 and was going to replace the cam adjusters, however I thought it might be a good time to to replace the upper guides for extra piece of mind. Is there a PDF or a good source someone could direct me to about setting the cam chain timing during reassembly.The 4.2 found in b6/b7 s4's uses a timing chain that has to be replaced at 100k. The older b5 2.8tt motor uses belts that have to be done rought every 50-60k if i'm not mistaken. Both motors have to be pulled to replace these parts. The 2011 AudiA4's 2.0L 4Cylinder engine is driven by a timing chain. There's no recommended service interval, so long as You're keeping up with regular oil changes and maintenance; if You are, You can typically expect the chain to last the lifetime of Your A4, or about 250,000 miles. Of course, c**p happens. Your timing chain may become stretched or otherwise damaged due to faulty timing chain
If you find out that your car needs its timing chain replaced, then you should be prepared to spend close to $1,000, depending on your application. Drive Cave notes that the timing chain typically costs around $100, but the labor to replace it can cost anywhere between $400 and $1,000. While you can’t see the timing chain inside your enginep5gyC.