My 09 plate 74,000 mile BMW 118i has just been diagnosed as needing a new engine by BMW Maidenhead as a result of the timing chain tensioner failing and getting sucked into the rest of the engine, ...

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 ...

Yes, chain cam. It's advisable to change the nylon chain tensioners at this sort of mileage, and to double change the oil: once, then again after 1,000 miles, draining from the sump plug, to get rid ...