Quote:
Originally Posted by dbs600
My N63 is at the dealer having its valve stem seals replaced.
At approximately 60k miles, this is a $8k+ job (covered under extended warranty).
Anyone know why the valve stem seals go bad on the N63?
Should I anticipate failure again in the future, or are new, improved parts now used?
Thanks.
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Probably because the heat of the exhaust is concentrated in the "V" of the engine with no real way to escape. Maybe if BMW had vented the hood (or directed the heat through fender vents) in a classy way...