Blower Issue
Thread Starter
Senior Member
Joined: Sep 2012
Posts: 280
Likes: 8
02' CLK 430
Blower Issue
My blower seems to be acting strange...doesn't seem to blow as hard as it used to. I've recently replaced the cabin filter so I'm thinking that't not it. Could the motor be pooched? It still blows hot air and gets the car nice and toasty but just doesn't seem to blow very hard...especially from the center and window vents...
Anyone have a similar situation? Any thoughts?
KRis
Anyone have a similar situation? Any thoughts?
KRis
Junior Member
Joined: Nov 2013
Posts: 28
Likes: 0
2000 CLK430 Cabrio
The most prominent symptoms of this part going bad are the fan will have a "Mind of it's own" and vary speeds without any climate control adjustments. I also had one that wouldn't shut the blower fan down with the car turned off.
Do either of these fit your symptoms??
Do either of these fit your symptoms??
Thread Starter
Senior Member
Joined: Sep 2012
Posts: 280
Likes: 8
02' CLK 430
Yeah not too bad but it does it enough to get my attention and annoy me. Would this also explain why the airflow is not even in from vent to vent? For example my left vents blows harder then the center vent...and the right vent barely blows at all.
KRis
KRis
MBWorld Fanatic!
Joined: Nov 2001
Posts: 1,259
Likes: 212
From: Boston North Shore
2001 CLK320 Cabrio
The blower regulator does not throw a CEL type code (check engine codes are emission related codes) however, the STAR diagnostic software might.
Failure of the blower regulator seems to be somewhat common on our W208s and as Taylori64 pointed out, the symptoms are that the air flow will have a "Mind of it's own" with randomly varying fan speeds.
If that isn't the problem, have you checked that all your vents are fully open (e.g.each vent has a physical flap, set by a thumb wheel, that adjusts vent airflow)?
If none of the above, it may have something to do with the filter installation (e.g. right filter etc.).
Failure of the blower regulator seems to be somewhat common on our W208s and as Taylori64 pointed out, the symptoms are that the air flow will have a "Mind of it's own" with randomly varying fan speeds.
If that isn't the problem, have you checked that all your vents are fully open (e.g.each vent has a physical flap, set by a thumb wheel, that adjusts vent airflow)?
If none of the above, it may have something to do with the filter installation (e.g. right filter etc.).
Last edited by Serndipity; Dec 5, 2013 at 08:44 PM.
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From: Washington, DC Metro Area
Currently: 2019 E450 AWD, Previous: 2002 CLK55 Cab
Hmm would that explain the whine coming from behind the driver's side vent? Only whines with heat on and the setting aimed at passengers. No whine with either defrost or when heat is directed up to windshield, down to feet or both up and down.
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