Tech Tip No. 13
Originally published in the quattro quarterly
Audi V-8 Timing Belt
The original recommendation for replacement of the Audi V-8 timing
belt was 90,000 miles. Several cars have had the timing belt break at around the 90,000 mile point. This is an expensive repair. In some cases over $3,000!
Last year, I was invited to test drive a used Audi V-8. I
drove it for about a mile and the timing belt broke at about 6000 rpm. I'm sure most of the 32 valves and 8 pistons hit each other.
Please revise any documentation you have regarding V-8 timing belts
to read 60,000 miles. The folks at Audi agree with this recommendation. If fact a recent Audi service bulletin changes the mileage interval to 60,000.