Engine Timing Chain Guide. Guide rail.
Guide for the Timing Chain.
Engine Timing Chain Guide
550i GT. 550i, 550xi. 650i, 650i xDrive; w/o Gran Coupe. 7 Series. 750i, 750Li. X5. X6.
Timing Chain - Repair or Replace
Your engine's timing chain can stretch over time resulting in a check engine light that comes along with excessive noise from your engine's timing cover. If the chain has broken, which is a rare occurrence, the engine will not start. If your has high mileage along with any of these other symptoms, contact our service department for expert diagnosis.