I was quite sure about this answer, anyway, my engine is reaching +360000Km and I was just wondering if at some point I should be worried about this.
I know that timing chains last weeeeell longer than timing belt, but we can’t say they are lifetime after all … isn’t it ? … or maybe I’m wrong ?
There is another user here with comparable mileage on a diesel. I do not recall him ever mentioning his timing chains.
When does the timing chain need to be replaced?
Updated: March 01, 2020
[ … ]
A timing chain doesn't need to be replaced unless there is a problem with it.
[ … ]
In a well-maintained engine, a timing chain can last up to 300,000 miles or even longer.
Roller chains wear at each pin joint, multiplied over the length between driving and driven cogwheel may become significant in valve timing. Wether or not this is apparent to eye or ear is problematic.
Again, BMW provides no criterion that I know of.
The usual problem reported by BMW owners is failure of the slack side tensioning device or failure of the tensioning guide.
A forum community dedicated to BMW owners and enthusiasts. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance, and more! Bringing the BMW community together.