Horrible whining noise when accelerating

comer7874 · 01-28-2007, 08:54 PM

Hello all,

I am new to the board and thought that I would seek the advise of other members before taking my C240 in. It recently started making an extreme high ptched whining noise after starting the car. The high pitch whining increases as i push down on the accelerator. It does this when I am in both drive, neutral and park. I have an automatic transmission. I was hoping someone might have some insight as what it could be. Since it makes the exact same high pitched whine when in neutral and park makes be believe that it might not be transmission related. Please help with any advice or similiar expreinces. Thank you for your help and your time.

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flipnf3rno · 01-29-2007, 01:26 AM

This happened to my 06 C230 and the dealer took care of it. It was the pulley/bearing.

EV0LVE · 01-29-2007, 01:49 AM

possible loose belts. check belt tension

Moviela · 01-29-2007, 02:02 AM

That is the sound of the BMW next to you attempting to keep up!

SlvrC230SS · 01-29-2007, 11:48 AM

It's the idler pulley. i had the same problem before and the dealer took care of it since it was under warranty.

comer7874 · 01-29-2007, 01:05 PM

Quote:

Originally Posted by SlvrC230SS

It's the idler pulley. i had the same problem before and the dealer took care of it since it was under warranty.

My car is not under warranty any more. I am taking it in for a serivce at the same time. Any idea of how much that will run me to get the idler pulley replaced whiel they do the service? Thanks for your help.

c230K415 · 01-29-2007, 01:32 PM

Quote:

Originally Posted by Moviela

That is the sound of the BMW next to you attempting to keep up!

tee_tz · 01-29-2007, 03:31 PM

Quote:

Originally Posted by Moviela

That is the sound of the BMW next to you attempting to keep up!

Mini Coopers aren't really BMW's, oh unless it's the 1-Series, it's not a BMW.

Tee_Tz.

sirenebekim · 01-29-2007, 04:01 PM

try spraying some wd40 on the bearings for the pulley's, that should take care of it. Also check to see if the belt is worn, or try some belt dressing like "No squeak"

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01-29-2007, 01:26 AM	#2
flipnf3rno Almost a Member! Garage is empty, add now Join Date: Mar 2006 Location: Southern Cali Posts: 72 Drives: 06 C230 Black/Black	This happened to my 06 C230 and the dealer took care of it. It was the pulley/bearing.

01-29-2007, 01:49 AM	#3
EV0LVE Super Member Garage is empty, add now Join Date: Nov 2005 Location: SoCal Posts: 674 Drives: F10	possible loose belts. check belt tension

01-29-2007, 02:02 AM	#4
Moviela MBWorld Fanatic! Garage is empty, add now Join Date: Jan 2005 Location: Orange County Posts: 2,533 Drives: 2005 C Wagon (No snickering please!)	That is the sound of the BMW next to you attempting to keep up!

01-29-2007, 11:48 AM	#5
SlvrC230SS Super Member Garage is empty, add now Join Date: Jul 2006 Location: The OC Posts: 736 Drives: 2006 C230SS & 2009 E350	It's the idler pulley. i had the same problem before and the dealer took care of it since it was under warranty.

01-29-2007, 04:01 PM	#9
sirenebekim Banned Garage is empty, add now Join Date: Nov 2005 Posts: 447	try spraying some wd40 on the bearings for the pulley's, that should take care of it. Also check to see if the belt is worn, or try some belt dressing like "No squeak"

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