Ventilation system
Thread Starter
Newbie
Joined: Jul 2018
Posts: 5
Likes: 1
R320
Ventilation system
I have an r class 320 and the footwell vent blows all the time no matter which direction switches are set.
Air blows to the screen and sides as it should.
I thought it might be the linkage or stepper motor as it seems a common problem, but when I set it to defog it goes to the screen as it should but it stops blowing in the footwells.
So I assume the motor and linkage is ok.
Any ideas? Could it be as simple as the button or is there more to it than that.
Thank you
Richard
Air blows to the screen and sides as it should.
I thought it might be the linkage or stepper motor as it seems a common problem, but when I set it to defog it goes to the screen as it should but it stops blowing in the footwells.
So I assume the motor and linkage is ok.
Any ideas? Could it be as simple as the button or is there more to it than that.
Thank you
Richard
Newbie
Joined: Dec 2018
Posts: 4
Likes: 0
From: Scotland
ML 320 CDi
My footwell didn't blow anything - I did a reset of system, and all OK now.
Press and hold the recirculate and demist buttons together for 5-10 seconds..... I was told I would get flashing LEDs and flapper movement during reset - but I got nothing....
However, everything has now started to work properly.
Hope this helps someone.
Press and hold the recirculate and demist buttons together for 5-10 seconds..... I was told I would get flashing LEDs and flapper movement during reset - but I got nothing....
However, everything has now started to work properly.
Hope this helps someone.
Newbie
Joined: Dec 2018
Posts: 4
Likes: 0
From: Scotland
ML 320 CDi
Ignition on - and when you push them initially it does "change air direction" depending which one you hit first - but hold them a while... there was nothing obvious happened (no lights, no other movement, nothing....) but when I tried the footwell vents, everything was working.... I'd had no heat there for over a month and my feet were always cold - now fixed (that was over a week ago now) and all still great.
Thread Starter
Newbie
Joined: Jul 2018
Posts: 5
Likes: 1
R320
Hi,
i kept trying it and also other combinations and it still didn’t work.
Eventually tried the recirc and the demist but with the auto switch on and it worked. Now have full control over air direction. Swmbo is happy as no more cold air blowing on her feet!
thank you
richard
i kept trying it and also other combinations and it still didn’t work.
Eventually tried the recirc and the demist but with the auto switch on and it worked. Now have full control over air direction. Swmbo is happy as no more cold air blowing on her feet!
thank you
richard
