It's 80,000 for my 2.8 SE which is much the same engine, I think. However, my last Audi 100 2.0E 5cyl went to 145,000 on the original belt before I sold it. Our old Passat GL5 [similar engine] went to 190,000 and I only changed it at about 130,000 'cos the water pump failed. It looked as good as...