Quote:
Originally Posted by hotsd
Just a note on n42, n46 and n46n, these ALL and I mean absolutely all shit valve stem seals. I've seen them at 40k and above. It's 110% absolutely a matter of when and not it.
What happens is the vss simply go hard and fail.
I've seriously been involved with about 30 at least.
If you leave it, you will also 100% destroy the cat in the car which are stupidly expensive genuine.
2k would be an absolute bargain, I would be super surprised if someone could do a full job for that money considering the parts alone cost close to that.
Moreover the process is remove head, full service and replace valve stem seals. Also replace all timing gear, chain, guides etc while in There as they also fail.
There after it's like a new engine and enjoy many more years of use.
2nd hand motor will have the exact same issue soon after if not already done. The issue is a shame as it's otherwise a decient motor once the typical bmw special leaks are sorted, in all the usual places.
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is this the same for the N54?