Blower Motor Won't Quit/climate Control Problem
Thread Starter
Newbie
Joined: Aug 2005
Posts: 2
Likes: 0
Blower Motor Won't Quit/climate Control Problem
I have a 2000 CLK 430. The blower motor will not stop with the climate control set to off, or even when the car is turned off. It just continues to blow. I had to remove the fuse to keep the battery from going down. Does anyone have and idea as to what the problem may be?? I think the climate control unit itself is fine. Any suggestions would be greatly appreciated.
Thanks,
Don
Thanks,
Don
Super Member
Joined: Mar 2005
Posts: 520
Likes: 1
From: Nor Cal
Piece of SH*T
If your talking about the engine fan motor/blower or whatever you want to call it, check the MSA control module.. that is what controls the fan to turn off and on at high temps. My fan and module went out at 51k miles and I barely use the A/C..so it could happen to you as well..wish you the best of luck!
Newbie
Joined: Feb 2006
Posts: 10
Likes: 0
02 CLK320
I have a 2002 CLK320 (W208) with the same problem. Is the MSA control module mentioned the same as the blower regulator? If not, where is the MSA control module located, removal/replacement instructions, ect? Thanks!
Senior Member
Joined: Dec 2001
Posts: 494
Likes: 13
From: Amber waves of grain.
2000 CLK430 Cabriolet
Hey, focus.
Some of you are talking about the engine fan,
others are talking about the heater/ac blower.
These are two very different things.
I think I have a heater/ac blower problem, either it's the blower motor, or the regulator (NOT the engine.).
If Indp shop repaired the heater/ac blower problem,
then what did the do or what did they replace ? Any info.?
Some of you are talking about the engine fan,
others are talking about the heater/ac blower.
These are two very different things.
I think I have a heater/ac blower problem, either it's the blower motor, or the regulator (NOT the engine.).
If Indp shop repaired the heater/ac blower problem,
then what did the do or what did they replace ? Any info.?
Last edited by Pancho; Apr 4, 2007 at 10:31 AM.
Junior Member
Joined: Aug 2006
Posts: 50
Likes: 6
From: Columbia SC
95 E320 cab, 81 300D,, 83 300D
Tsb #af54.20-u-6700-a
TSB addressed this. I have it at home on alldata, and will give send it to you later if you cannot find it, but try a search first. It's header is "electrical suction fan runs all the time". As I recall, it was due to water in fuse box, usually from engine washing. One particualr lead under the box was subject to corrosion. Easy and cheap fix.
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Senior Member
Joined: Jun 2002
Posts: 384
Likes: 0
From: Northeast
02 CLK55, 07 E92 335 ProCede
I believe it is a resistor, that keeps the climate control fan going. Your's is most likely shot. It is around $200-250 part I believe. It is located under the dash on the passenger side
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Newbie
Joined: Mar 2006
Posts: 12
Likes: 0
From: Jacksonville, FL
2000 CLK 430
Older thread with a newer part number. Latest part number is 210 870 02 10 28. It'll cost you around $210 at the dealer.
This is one of the few projects that took less time than I expected, only about 5 minutes. You'll need a T-20 torx socket or wrench.
Now for a good question. There was evidence of water (and leaves) getting in there. Where the heck does that come from, and can I seal it better, or clean out a drain? We get some heavy afternoon storms here in Florida, and I don't want to make a habit of fixing this part.
Thanks,
This is one of the few projects that took less time than I expected, only about 5 minutes. You'll need a T-20 torx socket or wrench.
Now for a good question. There was evidence of water (and leaves) getting in there. Where the heck does that come from, and can I seal it better, or clean out a drain? We get some heavy afternoon storms here in Florida, and I don't want to make a habit of fixing this part.
Thanks,
Newbie
Joined: Aug 2015
Posts: 1
Likes: 0
Clk55 AMG
2003 w209 clk55 blower quits
Ok I have just changed my blower and regulator/resistor. I also changed the climate control unit. My blower continues to cut off after a while and then randomly comes on. It begins to throw hot air when it come back on. I have no clue and now I'm stuck. I have ran it on the STAR computers and it shows nothing. Does anyone have this or knows how to fix this... Help help
Junior Member
Joined: May 2015
Posts: 48
Likes: 4
140 208; e 38
i had the same problem blower keeps blowing i had to disconect the battery that was the only way to stop it ......
until i replace the blower resistor regulator
http://www.autohausaz.com/secure/Par...2108206210.jpg
until i replace the blower resistor regulator
http://www.autohausaz.com/secure/Par...2108206210.jpg
Newbie
Joined: Aug 2016
Posts: 7
Likes: 0
CLK 2001 Excellence 2.0 Kompressor
I changed my regulator and the problem persists :(
Problem must be upstream of the regulator, anyone have a clue what else it could be? (before I go buy a replacement heater control unit). Is there a simple relay like in other makes of car? (or is CLK W208 just fuse -> control unit -> regulator?)
Looks like Jdvoigt tried replacing regulator and control unit (dials) and that still didn't fix it.. any update Jd?
Thanks
Looks like Jdvoigt tried replacing regulator and control unit (dials) and that still didn't fix it.. any update Jd?
Thanks
Last edited by ad3; Nov 14, 2016 at 03:03 PM.
Senior Member
Joined: Dec 2001
Posts: 494
Likes: 13
From: Amber waves of grain.
2000 CLK430 Cabriolet
I regret that I am not able to help,
but, JDvoigt's posting is from Aug 2015.
He either found a solution,
and didn't follow up on this topic,
or he sold his car.
Try to contact him directly.
He might have found a solution.
but, JDvoigt's posting is from Aug 2015.
He either found a solution,
and didn't follow up on this topic,
or he sold his car.
Try to contact him directly.
He might have found a solution.
Newbie
Joined: Nov 2017
Posts: 2
Likes: 0
2005Clk500
Heater blower work when it want even with the climate control unit off. I have spare parts from my other clk and change the blower, regulated,and climate control still same issue like the previous fellows who posted this issue and not respond on the cause.
Last edited by Robby1204; Nov 1, 2017 at 04:40 PM.
Senior Member
Joined: Dec 2012
Posts: 445
Likes: 11
From: Washington, DC Metro Area
Currently: 2019 E450 AWD, Previous: 2002 CLK55 Cab
I had this problem and the cause was quite different from this suggested so far. The cause was crossed wires. This occurred shortly after I purchased the vehicle. While I drive it year around the PO stored it for the winter. As such I noticed the problem after the first cold snap when I turned on the heat and couldn't turn it off. Got it to the shop and they pulled the dash. They found mice nests and that they had chewed through the insulation of certain wires and used the insulation as nesting material clearly during the winter months when it had been sitting in storage. One of the wires with power was then in contact with some of the wires to the HVAC control unit resulting to constant power to the unit. Cost me 500+ for them to clean the nests etc out of there and re-wrapp the affected wires. Problem solved.
Newbie
Joined: Nov 2017
Posts: 3
Likes: 0
From: NYC
2002 CLK320 Convertible
2002 CLK 320 convertible. Blower motor wouldn't shut off when car was turned off. No problem with heat / air or climate control unit. Pulled fuse number 25 under the hood to prevent battery from going dead. Blower Motor Resistor replaced by a AAA local indie garage. $84 parts, $120 labor, $18 tax = $222.00 total.
Member
Joined: Mar 2009
Posts: 89
Likes: 9
From: Birmingham, Michigan
04 C32 AMG (sadly sold), 05 CLK55 Cab, 08 R350 4Matic, 15 GLA250 (sadly bought), 75 VW Westfalia
bumping this thread; I have the same issue of the blower running constantly even with the ignition off. So, which wires were chewed through and crossed, were they in the engine compartment or inside the vehicle behind the dash? I replaced the regulator and it had no effect.
Thanks.
Thanks.
