Heater/ventilation motor
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12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Heater/ventilation motor
Hi everyone,
Pulled the blower motor out of my C240T from under the dash as it was making some noise. Quick and easy job taking around 15 minutes max. 3 screws to remove the knee bolster. 1 screw to be turned 90° then remove the footwell vent. Unplug the blower, then 4 screws around the motor support. The motor is ready to drop out. It took me longer to find a comfortable position on my back (OK I know I'm a Grandpa and overweight, but I still manage...) with my head on the floor looking up under the dash. up front. Just had to get out before pulling down the motor. You should have seen the amount of crap which came out at the same time
A small forest: leaves, twigs, dead insects, dust, etc., so I was happy not to get this all over my face. Cleaned the motor and surround with compressed air, then put a couple of drops on the motor's spindle and let it sit awhile for the oil to penetrate. Reassembly is the reverse procedure. Oh I forgot, you can change the cabin air filter at the same time... Easy. Mine was BLACK with road dust. Now, I just need to do the same operation in my 43, but I have to wait till it gets a bit warmer and in any case the 43 is under wraps hibernating for some time more.
I recommend this little job, as the result now is a super quite blower motor and ready for many extra years of service.
Pulled the blower motor out of my C240T from under the dash as it was making some noise. Quick and easy job taking around 15 minutes max. 3 screws to remove the knee bolster. 1 screw to be turned 90° then remove the footwell vent. Unplug the blower, then 4 screws around the motor support. The motor is ready to drop out. It took me longer to find a comfortable position on my back (OK I know I'm a Grandpa and overweight, but I still manage...) with my head on the floor looking up under the dash. up front. Just had to get out before pulling down the motor. You should have seen the amount of crap which came out at the same time
A small forest: leaves, twigs, dead insects, dust, etc., so I was happy not to get this all over my face. Cleaned the motor and surround with compressed air, then put a couple of drops on the motor's spindle and let it sit awhile for the oil to penetrate. Reassembly is the reverse procedure. Oh I forgot, you can change the cabin air filter at the same time... Easy. Mine was BLACK with road dust. Now, I just need to do the same operation in my 43, but I have to wait till it gets a bit warmer and in any case the 43 is under wraps hibernating for some time more.I recommend this little job, as the result now is a super quite blower motor and ready for many extra years of service.
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Joined: Feb 2006
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DRB some projects are fun if someone can fix them by themself, cleaning the inside compartment isn't fun but has to be done now 'n' then.
i think i have a tiny bearing noize on my blower motor?
it sounds like it's grinding to another part somehow?
blower still works great without any hissing sound, should I expect and complications in the near future since these blowers are known to break.
i think i have a tiny bearing noize on my blower motor?
it sounds like it's grinding to another part somehow?
blower still works great without any hissing sound, should I expect and complications in the near future since these blowers are known to break.
Last edited by KJI3jflarryfe93; Feb 1, 2012 at 08:37 AM.
Thread Starter
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,889
Likes: 323
From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
I imagine you have some muck stuck on the blower fan. Have u tried increasing the speed to max then turning it off? Sometimes that is sufficient to blow away the sticking "culprit" 
Here is a link: http://www.202tech.com/howto/blower.html
Here is a link: http://www.202tech.com/howto/blower.html
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Joined: Feb 2006
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I imagine you have some muck stuck on the blower fan. Have u tried increasing the speed to max then turning it off? Sometimes that is sufficient to blow away the sticking "culprit"
Here is a link: http://www.202tech.com/howto/blower.html
Here is a link: http://www.202tech.com/howto/blower.html
