Question about 2005 Audi S4

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Does the 4.2 engine have a belt or timing chain.

I looked on a audi service sheet and it lists a 4.2 timing belt replacement at 75k except for s4...not sure if this would need to be done or has 66k on it now...Thanks jeff m

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4.2 s4 engines don't have a timing belt,It is a chain.The engine is mounted backwards,so they used a chain.

Posted on Oct 18, 2010

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I would suggest you gat it done, the cost of having a timing belt replaced is much less than a head job if the belt breaks,if the belt breaks your pistons will come in contact with the valves and cause alot of damage.hope this helps

Posted on May 27, 2010

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1 Answer

Does a 2007 Golf 1.9tdi s have a timing belt or chain, and when would they need replacing?

Autodata publications show it as a timing belt
recommended timing belt change at 80.000miles
this is qualified by driving conditions , highway speeds , dirt , dust and oil leaks all of which will drastically reduce the service life of the belt
the engine is identified as an intereference engine which means valve damage if the belt breaks or the replacement is not done according to correct procedure
the labor time in an accredited service shop is listed as 3.8 hours
if you have been having the services done according to the service book it should be correct in what has been ticked
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The car had ignition coils replaced as a part of Audi recall. Two days later the car started misfiring and the check engine light came on. The car has 92000 miles on it and v8 4.2 engine. The dealer said...

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