This is applicable to the following models: (Q7 3.0L TDI, A8 3.0L TDI, A6 3.0L TDI, A7 3.0L TDI and Q5 3.0L TDI. The A8’s crash active headrest must be checked every 2 years. It's important to note the maintenance schedules for your Audi. Check out Overseas Service Haus' maintenance and service intervals. These HPFP sprockets get wear on the roller surface. I'd replace anything over 100k miles if I was in a hurry to reassemble and ordering parts before hand. HPFP Chain Sprocket Early silver intake manifold car: 03H 109 570 HPFP Chain Sprocket Blk 2pc with vacuum pump cars: 03H 109 570 E Upper chain: 03H-109-503 Upper SLide rail: 03H 109 513 B The cost of a timing belt replacement generally is between $246 and $1248, depending on the vehicle's make and model and if the work is performed by a professional mechanic. The average timing belt replacement cost across the 50 different models is $570. Also, $100 to $200 can be added to the final cost if the water pump and the timing belt Q5 3.0L TDI and Q7 3.0L TDI only l A6 3.0L TDI, A7 3.0L TDI, A8 3.0L TDI, Q5 3.0L TDI and Q7 3.0L TDI only Diesel Particulate Filter (DPF) – perform after the first 115K miles (USA)/175,000 km (Canada) or 110K miles (USA)/165,000 km (Canada) after a Diesel Particulate Filter (DPF) replacement; check ash loading according to manufacturer’s SSP 223 1.2L and 1.4L TDI engines with PD; SSP 224 Service interval extension engines with timing chain; 09D in the Audi Q7; SSP 368 2 0L 125 kW TDI engine Audi Q7 Maintenance Costs. An Audi Q7 will cost about $12,489 for maintenance and repairs during its first 10 years of service. This beats the industry average for luxury SUV models by $3,225. There is also a 36.25% chance that a Q7 will require a major repair during that time. This is 3.31% better than similar vehicles in this segment. A timing chain or belt on a Audi Q5 makes sure the crankshaft and camshaft are in time and the valves are opening and closing at the precise moment to coincide with the cylinder combustion. A timing chain provides the same function as a timing belt but the chain is made out of metal and looks similar to a bicycle chain. 3.0T, A8 4.0T, and Q5 TDI) Ribbed V-belt - Replace only the belt for the compressor drive (front belt) (all vehicles with the 3.0L V6 TFSI) Tiptronic gear box: Change ATF (Q5 Hybrid only) 5) The air cleaner replacement at this interval includes the S8 4.0L V8 TFSI engine. RMeJ.