Vehicles affected by service bulletin: The problem: Timing chains on N63 engines have been found to stretch and wear out prematurely, resulting in premature valvetrain wear and reduced engine ...

Many modern passenger cars have either a timing belt or a timing chain. Generally speaking, timing belts have the advantage of being quieter and cheaper to produce and replace, while timing chains ...

I have a 2007 plate BMW 120d SE, which I bought from a dealership 15 months ago. It has 67,000 on the clock and always been in the dealer network for work and servicing. However, the timing chain has ...