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Old 04-25-2002, 01:28 AM
Registered User
Join Date: Nov 2001
Posts: 126
Question Awful noise from heater/climate control

Has anyone ever had this problem before?
Everytime I turn on the heater at any setting I hear a weird annoying high pitch noise that sounds awful. The noise is constant, but the level of noise changes.

1988 190e 2.3 8v
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Old 04-25-2002, 04:32 AM
renok7's Avatar
Registered User
Join Date: Nov 2001
Location: Montréal
Posts: 95
I had the same problem a while back. The blower motor bearings were shot. Had to replace the motor.

'93 300E 4Matic
'98 Nissan Altima
'00 Yamaha Road Star Silverado
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Old 04-25-2002, 07:58 AM
J.HIDALGO's Avatar
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Join Date: Jul 1999
Location: Jax, FL
Posts: 1,785
You can try to lube...

the motor with transmission fluid but, if that does not work, you have to change the motor$$
'86 300E
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Old 04-25-2002, 06:47 PM
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Join Date: Jan 2001
Location: Santa Clara, CA
Posts: 414
This happened on one of my 240's. I had to remove the air intake grill and was able to make a very long extension for my WD-40 spray can by using small shrink tubing to join the small extensions together. I managed to get the extension down to the motor and gave it a good long squirt. It worked! No more noise.
Perhaps, hopefully, your 190 blower will be easier to access than that damn 240 was.
'76 240D-Sold
'78 240D-Sold
'85 300 SD, 165K-Sold
'88 300 TE, 165K-Sold
'64 Porsche 356C Cabriolet
'86 560SL 124K Miles
'94 320E Wagon, 74K Miles
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