Quote:
Originally Posted by TrevorM3
this is funny, i used to have a c63, and i had a very strange noise on startup. I took it to one dealer, said it was normal. I knew it wasn't normal, so i took it to another one, and low and behold, hydraulic lifters were bad. 5k job.
I'd get a 2nd opinion if possible.. But if it isn't, like you said, at least you have warranty. If engine goes bye bye, BMW is on the hook for a much larger bill.
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Apparently (as per my SA) BMW m5 lacks top end oil pressure upon start up causing hydraulic lifters to adjust noisily. If this happens only on cold start ups then it is normal. I really would like a second opinion though but im not rushed