Quote:
Originally Posted by dinan e39
I have read about this valve guide failure on early N62's, especially on the 7 series. Those early motors also have to contend with the dreaded coolant return pipe leak in the middle of the motor. Roughly a $3K-$4K fix with stock parts.
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You'll find the coolant problem throughout the life of the N62. Up through the E70 as discussed
in this thread. It's so common in fact that All German Auto
made a fix and sells it through many outlets.