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View Full Version : 95 525i Slight Knocking and Pinging w/91 Octane



MrBill330i
06-11-2010, 11:55 PM
Hello- My 525i is gently knocking and pinging when going up hill without giving it much gas. When it downshifts, it goes away, but before that, it's a pretty consistent gentle knocking a pining. This even happens with premium fuel.

The car is an automatic and it usually happens around 3K rpm.

I didn't think it was possible to adjust the timing, but am I wrong on this one?

Thanks for the help.

Correction to the above, I meant to say RPM are usually btwn 2K-3K.