Windscreen demister - Mercedes-Benz Forum

Go Back   Mercedes-Benz Forum > Mercedes-Benz Vans/Trucks/SUV/Others > W163 M-Class
New User? Register - Forgot Password

BenzWorld.org is the premier Mercedes-Benz Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 01-05-2009, 11:28 PM   #1 (permalink)
BenzWorld Junior Member
 
joel4507's Avatar
 
Date registered: Dec 2008
Vehicle: 2003 Mercedes Benz ML270 CDI Inspiration (W163)
Location: High Peak, UK
Posts: 46
Post Windscreen demister

Now the colder weather has hit the UK I pressed the button to demist the front winscreen, the one above the recirc button in the middle of the fan speed dial, the fan kicked up its speed and air came out of the windscreen vents but only for around 20 seconds - it then started to blow into the car from the air vents either side and in the middle of the dashboard. I tried to change this manually using the selector dial but at any fan speed over four the air seems to divert from the windscreen to the dash vents. I switched off and tried again with much the same results. I have monitored this and it seems to happen maybe 8 out of 10 times so it is intermittent - anyboby else experienced anything similar and found a fix?
joel4507 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-06-2009, 01:28 AM   #2 (permalink)
BenzWorld Member
 
Bobgsinsung's Avatar
 
Date registered: Jun 2008
Vehicle: W163 05' ML500
Location: Lancashire, UK
Posts: 53
I have exactly the same problem on my 05' ML500 again in the UK so RHD. Searched previous posts and thought it would be dead accessible and an easy repair from all the pics and details i found.

Unfortunately the entire system is reverse in a rhd car, so the 3 motors to control the distribution flaps are on the right side of the trans tunnel. I dissasembled the lower part of the dash/knee panel, and to get to the motor that controls the centre vents and demister the handbrake (or to our friends in the US E-Brake) bracket assembly must be removed.

This put me off so i still need to tackle it, especially with the cold weather at the moment. Also not entirely sure if the part mo's where the same on a RHD car since its reversed. Was gonna take the old part off before ordering the new one.
Bobgsinsung is offline   Reply With Quote
Old 01-06-2009, 02:28 AM   #3 (permalink)
BenzWorld Elite
 
FAR888's Avatar
 
Date registered: Mar 2007
Vehicle: 2002 ML55 AMG, 1999 C280
Posts: 4,712
Not making light of your problems gents but what is this cold weather and need for this windscreen demister contraption of which you speak?
FAR888 is offline   Reply With Quote
Old 01-06-2009, 03:29 AM   #4 (permalink)
BenzWorld Junior Member
 
joel4507's Avatar
 
Date registered: Dec 2008
Vehicle: 2003 Mercedes Benz ML270 CDI Inspiration (W163)
Location: High Peak, UK
Posts: 46
Unhappy

QUOTE=FAR888;3241098]Not making light of your problems gents but what is this cold weather and need for this windscreen demister contraption of which you speak?[/QUOTE]

In my neck of the woods today it is minus seven degrees centigrade with 2 inches of hard frozen snow (white stuff on the ground)
Attached Thumbnails
Windscreen demister-cimg0548.jpg  

Last edited by joel4507; 01-06-2009 at 03:55 AM.
joel4507 is offline   Reply With Quote
Old 01-07-2009, 01:36 PM   #5 (permalink)
vip
BenzWorld Member
 
Date registered: Nov 2005
Vehicle: 2003 ML500 Inspiration
Location: Burnaby, BC, Canada
Posts: 245
Had the exact same problem in my ML.

It the was accentuator motors - in the front. Apparently there are 10 in the car so I was told by the SA.

Anyway, they replaced them (cost approx. US$400) - not cheap.
vip is offline   Reply With Quote
Old 01-07-2009, 02:54 PM   #6 (permalink)
BenzWorld Veteran
 
Bigburgundy's Avatar
 
Date registered: Jun 2007
Vehicle: 2004 ML500 w/ Sport Package
Location: New Jersey, USA
Posts: 601
I got the same problems. Getting it fixed on saturday. Like vip said, its the accentuator motors. Price=free. Thank you extended warranty!
__________________
-Like my father has been telling me since I was 9 years old: "If it doesn't have a star, it's just another car"
Bigburgundy is offline   Reply With Quote
Old 01-07-2009, 06:13 PM   #7 (permalink)
BenzWorld Member
 
Date registered: Sep 2004
Vehicle: 2004 ML350
Location: Hoboken, New Jersey
Posts: 257
It's an easy fix. Took me about 1/2 an hour.

http://www.benzworld.org/forums/w163...ions-help.html

Joe
__________________
2004 ML350 Black with charcoal leather, OEM Hitch, Rhino step, Bose, Navigation, OEM front guard, Comfort package, Entertainment package, Sunroof, heated seats.

Last edited by 2bmj; 01-07-2009 at 06:16 PM.
2bmj is offline   Reply With Quote
Old 01-08-2009, 12:26 AM   #8 (permalink)
BenzWorld Member
 
Bobgsinsung's Avatar
 
Date registered: Jun 2008
Vehicle: W163 05' ML500
Location: Lancashire, UK
Posts: 53
Quote:
Originally Posted by 2bmj View Post
It's an easy fix. Took me about 1/2 an hour.

http://www.benzworld.org/forums/w163...ions-help.html

Joe
It will take more than 1/2 hour on a rhd car
Bobgsinsung is offline   Reply With Quote
Old 01-08-2009, 07:07 AM   #9 (permalink)
BenzWorld Member
 
Date registered: Sep 2004
Vehicle: 2004 ML350
Location: Hoboken, New Jersey
Posts: 257
Hi,
I replaced the defogger lever which is the broken plastic lever on the driver side on my lhd ML. It should be easier for you because there is more space to work since your ML is rhd.

Check to see what you need before you buy parts. It may just be the broken lever. Now that I did the job once I can see it is about 5 minutes to get the part out and another 10-15 minutes to get it back in.
2bmj is offline   Reply With Quote
Old 01-08-2009, 07:22 AM   #10 (permalink)
BenzWorld Member
 
Bobgsinsung's Avatar
 
Date registered: Jun 2008
Vehicle: W163 05' ML500
Location: Lancashire, UK
Posts: 53
Quote:
Originally Posted by 2bmj View Post
Hi,
I replaced the defogger lever which is the broken plastic lever on the driver side on my lhd ML. It should be easier for you because there is more space to work since your ML is rhd.

Check to see what you need before you buy parts. It may just be the broken lever. Now that I did the job once I can see it is about 5 minutes to get the part out and another 10-15 minutes to get it back in.
Yes it is on the drivers side (left hand) for a LHD car, but on RHD cars it is on the right hand side of the car. Also since the Parking foot brake is still on the left of the footwell all of this bracketry is in the way of the parts. Basically much more difficult for RHD cars.
Bobgsinsung is offline   Reply With Quote
Reply

  Mercedes-Benz Forum > Mercedes-Benz Vans/Trucks/SUV/Others > W163 M-Class

Bookmarks



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Topic Author Forum Replies Last Post
190e rear demister switch Psych000 W201 190 Class 1 03-23-2008 04:56 AM
Windscreen demister problem sjc123456789 W124 E,CE,D,TD Class 2 11-04-2006 02:34 AM
Windscreen demister not blowing air up m6dtt General Mercedes-Benz 3 08-13-2005 11:28 AM
Windshield demister seems blocked!! need advice!! dodgy geezer W140 S-Class 19 02-02-2005 11:12 AM
rear defogger/demister pcorrick R170 SLK Class 4 01-26-2004 10:03 AM


All times are GMT -7. The time now is 12:37 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.1

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.