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      07-17-2025, 02:32 AM   #27
bmwstephen
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Drives: 95' M3, 17' M2
Join Date: Mar 2018
Location: Bay Area, CA

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Quote:
Originally Posted by tturedraider View Post
What are you talking about??? Timing chains are lifetime parts and do not require changing. That’s why manufacturers use chains rather than belts. Timing belts require replacement at regular intervals. Not timing chains. If the timing chain on an N55 or B58 requires maintenance there has been a significant failure somewhere. I haven’t seen a single post on any BMW forum complaining of a timing chain issue with either the N55 or the B58 since the introduction of either of them. Or the four cylinder B46/48 either for that matter.
Guess you never owned bmw’s as long as I have. Every BMW engine I tore down at over 100k, timing chain guides are worn and there is slack in the chain. Do they snap like timing belts? No but they are an eventual service item and you’d be dumb to not do it while you are in there. But oh wait you can’t now because its in the back of the engine because BMW hired audi engineers
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