Squeaking Climate Control
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Junior Member
Joined: Mar 2010
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1993 300D
Squeaking Climate Control
Love the '93 300D. So does my wife 
When the climate control is turned on, there is a squeaking sound. Sounds almost as if the fan bearings need grease. The sound stops when the climate control is turned off.
Is this common?
This is mildly off-putting. Does anyone know if there is a logical fix that is not ruinously expensive that would be worth pursing?
Many thanks.
Caleb
When the climate control is turned on, there is a squeaking sound. Sounds almost as if the fan bearings need grease. The sound stops when the climate control is turned off.
Is this common?
This is mildly off-putting. Does anyone know if there is a logical fix that is not ruinously expensive that would be worth pursing?
Many thanks.
Caleb
Last edited by CCMcC; Mar 27, 2010 at 10:39 AM.
Thread Starter
Junior Member
Joined: Mar 2010
Posts: 50
Likes: 3
1993 300D
Thanks ps2cho.
It is a squeak, not a click. It seems to happen no matter where the temperature dial is set (cold through hot). After it has been running for a while, the squeak at times seems to stop. There is a soft "clunk" sound that happens only one time when the car is started that seems to come from behind the dash.
Thanks,
Caleb
It is a squeak, not a click. It seems to happen no matter where the temperature dial is set (cold through hot). After it has been running for a while, the squeak at times seems to stop. There is a soft "clunk" sound that happens only one time when the car is started that seems to come from behind the dash.
Thanks,
Caleb
Last edited by CCMcC; Mar 27, 2010 at 10:38 AM.
Member
Joined: Jan 2010
Posts: 220
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From: chicago il
300ce w124
it is from the fan, have the same problem with mine, u can hear it with the low fan on, but if i turn the high fan it doesnt any
morehttp://cgi.ebay.com/ebaymotors/MERCEDES-HEATER-FAN-MOTOR-W124-WITHOUT-CABIN-FILTER_W0QQcmdZViewItemQQhashZitem45effc15bdQQitem Z300379018685QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fA ccessories
what u need to is either change it but it is worthless to spend the money on, try just grease it, though that recuires some work, if u don't know how to do it might cost u something
morehttp://cgi.ebay.com/ebaymotors/MERCEDES-HEATER-FAN-MOTOR-W124-WITHOUT-CABIN-FILTER_W0QQcmdZViewItemQQhashZitem45effc15bdQQitem Z300379018685QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fA ccessories
what u need to is either change it but it is worthless to spend the money on, try just grease it, though that recuires some work, if u don't know how to do it might cost u something
Thread Starter
Junior Member
Joined: Mar 2010
Posts: 50
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1993 300D
Thanks. Yes, it squeaks on the lower setting, but not on high. I had thought of lubricating it, but have no idea how that would work without disassembling the dash. Sounds like maybe I should turn the radio on and not worry about it unless the fan dies. Thanks also for the link to the replacement part.
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Member
Joined: Jan 2010
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From: chicago il
300ce w124
i'm afraid that is the only way, i'm wayting for that also, i don't know when it wil happen, for now i'm just dealing with it that way, but as soon as i'll do it i'll let u know how i've done it, it might happen in the next couple of weks cause i havwe to open up the dash to change the lights into the buttons anyway, so i'll se
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Joined: Jun 2007
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From: Atlanta, GA
93 500e<P>94 E320T "Sportline"<P>90 FJ62
It's the blower. Mine was a piece of plastic debris that had come off something(?) and was slightly hitting the blades of the blower. I've had a friend try to lube his when his started doing, after finding that nothing was hitting the blades. Whatever it is, it is most likely being caused in that area.
It is accessible through the windshield wiper area. Do a search here or peachparts. Lots of writeup on how to get in the area. Do not go through the climate control unit and if that's what the Haynes manual says, return it.
It is accessible through the windshield wiper area. Do a search here or peachparts. Lots of writeup on how to get in the area. Do not go through the climate control unit and if that's what the Haynes manual says, return it.
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1993 300D
Thank you for the heads up kwontumspeed. Here is the link to a wiki with pictures from the peacetree site:
http://www.peachparts.com/Wikka/W124BlowerMotor
http://www.peachparts.com/Wikka/W124BlowerMotor
Last edited by CCMcC; Mar 31, 2010 at 09:52 PM.
Thread Starter
Junior Member
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1993 300D
Update...
The Haynes manual has the same procedure to get at the blower as the wiki linked above--under the wiper assembly.
Dove in tonight. Got the blower assembly out and lubricated the bearings with automatic transmission fluid. Reassembled all the bits and pieces and fired her up. No more squeaking--so far.
Dove in tonight. Got the blower assembly out and lubricated the bearings with automatic transmission fluid. Reassembled all the bits and pieces and fired her up. No more squeaking--so far.
