Heater Blower not working!!!!!
Thread Starter
Newbie
Joined: Mar 2006
Posts: 3
Likes: 0
From: Michigan
1995 S500
Heater Blower not working!!!!!
Hi I am having a problem with my heater blower, it still has hot air but it doesnt blow hardly at all. I tried checking for a blown fuse... Didn't find any. Anybody have a clue what to try next? Thanks George
MBWorld Fanatic!
Joined: Apr 2006
Posts: 2,290
Likes: 1
From: New Zealand
1993 300SEL/S320
That can't be possible, my PSE pump is sitting next to me on my desk for repair and my blower is working, the regulator is a well documented issue, also duo valve is related to tempreture issues not the flow of air.
Member
Joined: Jun 2005
Posts: 76
Likes: 7
From: Oslo, Norway
1998 C140 CL500
Diagnose of the regulator;
http://www.mercedesshop.com/Wikka/W140BlowerMotor
By doing that, you will also discover if your main
passenger air filter is due to replacement (clogged one makes
the motor work hard, to suck air in)
br,
syljua
http://www.mercedesshop.com/Wikka/W140BlowerMotor
By doing that, you will also discover if your main
passenger air filter is due to replacement (clogged one makes
the motor work hard, to suck air in)
br,
syljua
Member
Joined: Jun 2005
Posts: 76
Likes: 7
From: Oslo, Norway
1998 C140 CL500
also functions as giving vacuum to the flap plenum
when engine is not in use.
My guess - perhaps there is no valve
in the plenum when the PSE is disconnected, and flaps
will not get moved by the engine vacuum?
br,
syljua
MBWorld Fanatic!
Joined: Apr 2006
Posts: 2,290
Likes: 1
From: New Zealand
1993 300SEL/S320
Electrically wise, I agree, but remember that the PSE
also functions as giving vacuum to the flap plenum
when engine is not in use.
My guess - perhaps there is no valve
in the plenum when the PSE is disconnected, and flaps
will not get moved by the engine vacuum?
br,
syljua
also functions as giving vacuum to the flap plenum
when engine is not in use.
My guess - perhaps there is no valve
in the plenum when the PSE is disconnected, and flaps
will not get moved by the engine vacuum?
br,
syljua
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Senior Member
Joined: Apr 2004
Posts: 393
Likes: 2
From: Mesa, AZ
2011 E350 Bluetec, 1996 S320 & 2006 E320 CDI Sold to my son & 2017 GMC 2500 Diesel Pick up
It does sound like the regulator. This is an easy fix for even a semi good DIY kind of guy. The cost of the part is not to bad, so if you do it yourself its maybe $150. Buy a new filter while your at it, it has to come out anyway so its a good time to change it. Try www.autohausaz.com
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