The dealer says the timing belt is weather cracked.
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1999 Audi A8 Question: Should I have the timing belt replaced?
Answer #1dandd April 17, 2009, 10:28Master
The timing belt is due by age. If it is the original timing belt, it is over 72 months old which is the time interval for the belt, before they crack. A timing belt has a rubber that cracks, much like tires. After about 72 months ( 6 years ) the rubber will crack or get 'age cracks'.
ReplyVisitor, June 03, 2010, 05:21
Not sure about the states, but in europe Audi recommends that you change the timing belt every 120,000 kilometers.