Does the 2015 Audi A6 have a timing belt or chain?

The 2015 AudiA6 is equipped with a timing chain, which is designed to last the life of the vehicle. However, although You don't have to replace it routinely like a belt, it does cost quite a bit more to replace, if there is a problem with it. If You picture a bicycle chain in constant motion and interacting with other parts, You can get an idea of how the timing chain works. It makes sure the camshaft and crankshaft sprockets are always synC-HRonized. Otherwise, the intake and exhaust valves won't operate as they should every time the engine fires. If the chain breaks, expensive damage can be done to the engine. The average cost to replace this part in the A6 is $2,030 to $2,470. Labor makes up between $1,650 and $2,090 of that total.