When should the timing belt be serviced on a 2021 Audi a6 SLine?
Hi Marie,
This varies considerably from engine to engine, not just car to car, so we'll assume the A6 has the popular 2.0 TDI diesel engine. The belt in that must be changed at least every 210,000km regardless of time. If you need information on a different engine please do come back to us with all the details.
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