Quote:
Originally Posted by sahyoun
Not sure what timing chains you're referring to. But a timing chain will NOT outlive these motors. Timing chains can go out anywhere between 80k-100k along with the chain guides.
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As per the service manual, the timing chain is a non-wear item. In the first three pages of google results, there are a bunch of "should I replace it? No." posts and a few "320d's have timing chain issues" posts, but few "my timing chain died" posts and none at all that I could find for gasoline engines.
Of course, theoretically the water pump isn't a wear item either, but of course we all know there's maybe a 50% chance of having a pump death within 200k miles.
Well. Even that's probably overstated. Hardcore reporting bias, nobody posts "I'm at 200k and my water pump is dandy."