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Old 01-03-2002, 12:55 PM
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Angry SL320 Noise

I have a 1995 Sl320 I purchased about 2 months ago. I love the car. I do have one annoying problem, however. When I get the car up to around 60 MPH I hear a high pitched whine that seems to be comming from behind the drivers seat. I also seem to feel a slight vibration. The whine goes away when you let off the accelerator. Also, the whine diminishes as you go above 60 MPH.
I had it to the dealer and they balanced the rear tires and wrote on my slip "possible rear problem, need more time to diagnose". The vibration seems slighly better since the tires were balanced but the whine is still there. The car has 75,000 miles on it and I believe it was hit at one time on the drivers side.
Does anyone have any ideas ??

Also, according to my owners manual, the windows supposedly should crack open slightly upon opening the door and then shut after the door is closed to make the doors easier to close. Mine doesn't do that and the dealer says that the car doesn't have that feature. Is this true ??

Thanks in advance !!
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Old 01-03-2002, 01:20 PM
elau's Avatar
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Join Date: Nov 1999
Location: MD.
Posts: 1,725
Since I have not heard the noise you mentioned, so I cannot tell you what may be the cause of it. Have you tried to drive the car with the window down to see if you can id the exact location? One other possible cause may be your wheel bearing going bad. My car always have some intermittent whining noise, and I found out it was my vacuum pump is recharging and hence the noise.
As far as the window is concerned, it should come down an inch or so when you open the door, and then it will go up when the door is closed. Tell the dealer to reset the window. I had to have mine done when I installed a new battery recently (my original battery finally gave out after 6 years) and the window did not close appropriately after that. The Service Manager got into my car and did some quick adjustment and the problem solved.
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