1997 Mercedes E420 - Mercedes-Benz Forum

 
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post #1 of 7 (permalink) Old 01-23-2007, 08:21 AM Thread Starter
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1997 Mercedes E420

I am having a problem with my blower. The climate control works fine but it will not blow! Even on MAX - it barely warms the car. Does anyone know what the problem could be? Fuse? If so, where is the fuse located?
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post #2 of 7 (permalink) Old 01-23-2007, 08:38 AM
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I suggest you ask in the E class forum for a better chance of an answer. Could be anything from a fuse to a failed blower motor
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post #3 of 7 (permalink) Old 01-23-2007, 01:29 PM
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When I had a W210 car, the blower motor regulator blew up. I believe it is a common problem on a W210 (my car was MY 2000, a face lift one). Do you have automatic AC? The display was showing the adjusted blower speed but the blower was first going up and down a bit on its own and finally started blow at full speed, on its own.

The odd thing to me is that at least the face lift model did not have any fuse for the blower motor. I could not believe this but an (independent) expert confirmed this. I had to disconnect the battery because the car had to wait for the spare part over night (the blower would have run the battery flat during the night otherwise).

I've seen DIY guides for the regulator job but did not do any search at this time.
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post #4 of 7 (permalink) Old 01-23-2007, 02:27 PM
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Before tackling a huge job like that, check the cheap stuff, like your anti-freeze and coolant in the radiator... that can cause a lack of heat in cold weather.

EDIT: I saw you said the blower isnt blowing... if it is on MAX does the air come out fast? Or is the air just not warm?
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post #5 of 7 (permalink) Old 01-23-2007, 11:12 PM
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Quote:
Originally Posted by jlink38
Before tackling a huge job like that, check the cheap stuff, like your anti-freeze and coolant in the radiator... that can cause a lack of heat in cold weather.

EDIT: I saw you said the blower isnt blowing... if it is on MAX does the air come out fast? Or is the air just not warm?
This was a good clarifying question. The original post mentioned "the climate control will not blow", I assumed it does not blow air but if it does but blows cold air (but I was not 100% sure if this was a correct assumption), the cure would be something totally different from the options above (blower motor or regulator).

By the way, the blower can be accessed relatively easily, depending on one's skills, the blower/regulator job would not be a huge job (but the real fix might be different and even simpler).

Last edited by Diesel Benz; 01-24-2007 at 08:54 AM.
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post #6 of 7 (permalink) Old 01-24-2007, 08:29 AM
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Blower regulator is a common problem in that car. The stealership fix is around $1000 as it requires upgrading to a different blower assembly. There is a way to fix it using cheaper parts, though.

Here is a link to a lengthy post about it in the W210 forum:

http://www.benzworld.org/forums/w210...enly-slow.html
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post #7 of 7 (permalink) Old 06-23-2007, 04:24 AM
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'96 E320 Blower Motor Regulator

I am attaching a file that I found on another website. It seems to be an easy DIY project. You could buy a motor regulator for W-140 (S-320) and install it on W-210 ('96 E320 , my car). Part # is 140-821-83-51 , by KAE for $163.63 from autohausaz.com.
Hope this helps
Attached Files
File Type: pdf BlowerMotorRegulator Replacement.pdf (564.9 KB, 158 views)
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