2001 E38 740iL Timing Chain. I am aware that this topic has been discussed n number of times but so please be patient. I have decided to replace the timing chain guides since the engine leaks oil and vanos is rattling lightly when warmed up. There are 160k miles on the car and engine has not been touched at all. Its very greasy up front. BMW experts generally advise that the timing chain should be replaced every 80,000 to 120,000 miles (or 130,000 to 200,000 kilometers). BMW 5 Series timing chain replacement But what if I don’t clock in those high miles? The timing chain, and gears, should be good for a long time- depending on oil changes and how hard you have driven the car- it should last as long as the valves and rings in your engine and might not need to be replaced until it is time to rebuild the engine- your BMW probably has more pressing issues than that- check with a BMW specialist to get an expert opinion on what your car needs right The average price of a 2017 BMW 3 Series timing belt replacement can vary depending on location. Get a free detailed estimate for a timing belt replacement in your area from KBB.com A: As a general rule, if an engine has a timing chain and the oil was changed on a regular basis, the timing chain should last the lifetime of the engine. What BMW engines have problems? The BMW X5 330D 3.0 Diesel M57D30 (306D3) and the M57D30 (306D5) have long been known to endure problems with turbo and injectors failure. It is also possible to order the specific timing chain from the manufacturer if it needs replacing. FAQs i. How long does a timing chain tensioner last? A timing chain tensioner should last between 80,000 and 120,000 miles. This time will also depend on if you follow proper care and maintenance of the vehicle. 33 comments. Add a Comment. SodaSlaughter • 11 yr. ago. Timing chains are not designed with a specific maintenance interval and are supposed to last the life of the motor. That being said, the 2.4 quad 4 is known to have guide failures and the chains themselves are known to break. The quad 4 was plagued with reliability problems in general. The symptoms of a failing timing chain can mimic the symptoms of other engine problems, such as: the illumination of the check engine light; engine running rough; overall power loss upon acceleration; and engine backfiring. While these symptoms are all concerning and warrant a trip to the auto shop, it is critical to remain aware of such r4w2ZgO.

how long should a bmw timing chain last