2011 328i SULEV starting from stop whining

yoyotvyoo · 08-17-2023, 12:18 AM

Hello everyone!

I just bought a 2011 E92 328i SULEV with N51 engine last month and have been pretty happy about it. However, I found when starting off from stop (I assume in 2nd gear) there is a loud whining noise I think coming from the front. After it up shifts twice the noise goes away. This also happens when the car is cold. Sounds like this: https://www.youtube.com/watch?v=lI1lu3xLUCA

I have replaced the following:

Alternator
Belt & belt tensioner
Power steering pump & fluid
Transmission fluid & filter
Engine oil & filter

Has anyone ever run into this problem?

ergin · 08-30-2023, 03:25 AM

I have the same problem. Do you have any update?

edited: Found the problem, mine was the AC compressor. Bypass it by a shorter belt and no noise now.

08-17-2023, 12:18 AM	#1
yoyotvyoo Registered 0 Rep 1 Posts Drives: 2011 BWM 328i E92 Join Date: Aug 2023 Location: Los Angeles iTrader: (0)	2011 328i SULEV starting from stop whining Hello everyone! I just bought a 2011 E92 328i SULEV with N51 engine last month and have been pretty happy about it. However, I found when starting off from stop (I assume in 2nd gear) there is a loud whining noise I think coming from the front. After it up shifts twice the noise goes away. This also happens when the car is cold. Sounds like this: https://www.youtube.com/watch?v=lI1lu3xLUCA I have replaced the following: Alternator Belt & belt tensioner Power steering pump & fluid Transmission fluid & filter Engine oil & filter Has anyone ever run into this problem?
	Appreciate 0 Tweet Quote

08-30-2023, 03:25 AM	#2
ergin Registered 0 Rep 1 Posts Drives: 2012 E92 328xi sulev Join Date: Aug 2023 Location: Portland iTrader: (0)	I have the same problem. Do you have any update? edited: Found the problem, mine was the AC compressor. Bypass it by a shorter belt and no noise now. Last edited by ergin; 09-26-2023 at 01:54 PM..
	Appreciate 0 Quote