Question about 1990 Mercedes-Benz 190
I am having trouble with my 1989 mercedes 190e blower motor shutting off after a couple of minutes and the air vents are not changing according to the push button selection. If I turn the car off and wait a couple of minutes then restart the car the blower fan will work again for a couple of minutes but the air vents never change.
Probably two separate problems.
For the blower motor, it may be that the bearings are getting old and so the motor is getting harder to turn and overheating. A way to check is to take the motor out (it will be tucked in behind the glovebox. Pour a tablespoon of motor oil into the vents next to the shaft and work it back and forth to loosen it up. Then put the motor back in and try it. If I'm right, the motor will work normally again. However, this is only temporary--once the oil gets worn off the bearings in a while it will start quitting again. You should order a replacement before it blows your resistor block or (in the worst case) starts a fire. You can get them online, like from autopartswarehouse.com
Posted on Feb 27, 2010
The blower motor regulator which is under the blower motor is going bad when it overheats it shuts the motor off. The climate control unit (push button assembly) or vacuum pods are bad and that is why you vents are not moving. The mono vacuum blocks for the pods are on the passenger side behind the glove box.
Posted on Jun 15, 2009
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Posted on Jan 02, 2017
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