Having problems with your 2005 Audi S4 ?
Does the 4.2 engine have a belt or timing chain.
\015 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 not..car has 66k on it now...Thanks jeff m\015
4.2 s4 engines don't have a timing belt,It is a chain.The engine is mounted backwards,so they used a chain.
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
Repair Help & Product Troubleshooting for 2005 Audi S4
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