Hello peoples, happy new year and all that.
Having a problem with the heaters in the car, and from what i've read it seems that it might be the duo valve, but i have a couple of questions.
1. Do all cars come with the duo valve, or only ones with air con/CC?
2. Where can i find it under...
Star shows a duo valve stored fault. No idea what the duo valve (valves?) was/were so I checked this forum and now I'm an expert ready to roll, ahem.
Can anyone confirm that the valve operates by pulsing fully open/shut, rather than opening progressively?
Also, with ignition on, but engine not...
I know the problems with the duo valve are well documented.
My 220 coupe was quite lightly specced so im not sure exactly what heating system I have.
I have the left/right temp dials and the fan speed and position dials but thats it, does this mean I have just a standard fan / heater or is...
Unfortunately my c class is blowing out hot air on the passenger side regardless of temp setting. The Drivers side is ok (cold when set to cold and hot when set to hot).
I have done a search and want to know if i am right in thinking that this is a problem with the Duo Valve?
£170 .ono cash on collection OR may post....
Dell Inspiron 6400 Centrino Duo Core 2
15.4" WXVGA High resolution & Anti glare & GLOSSY LCD Screen (1280 X800)
Intel Centrino DUAL CORE 2 X 1.66GHz (3.32GHz)
256mb ATI Mobility Radeon X1400 Hypermemory Video Graphics...
For some reason after my side vents have been blowing lovely cold air and ive stopped the car for say 5 mins - when i get back in and and restart the car they sometimes blow very hot air?
Also - it seems to say very hot until i turn the temp control dial all the way to cold - nothing...
Today i thought i'd have a crack at following parrot of dooms instructions on servicing my duo valve as one of the valves wasnt working, when i opened it up i found that it wasnt working because it was stuck. i followed the instructions and cleaned all the bits and lubricated. when i...
Just a quick one,having searched for ages on here i cant find out where the Duo Valve is located on my W124 Estate.Got a wee small heating issue and i think this might be the problem.
PS- this is a fantastic site full of interesting posts and threads:rock:
When I bought the car the heater temp was full hot, this forum gave me the know how to strip/clean the duo valve. Been perfect up to now, now its back to full hot. I thought the duo valve would be ok so I've been checking other stuff, fuses, cabin temp sensor and vacuum, heater controls etc...
Thanks to yet another great HOWTO i have removed my duo valve.
Now that it is out i need help cleaning it. what should i clean it with and
how do i clean out these pipes?????
It's sitting in my garage now so speedy help would be great appreciated :)
thanks again guys...
I've been trying to resolve the temperamental heating in my 300E.
It doesn't always blow cold. Hot is no problem but when switching the dials to cold, warm is the best i can get. Sometimes it will stay on hot.
I've had the duo valves apart and clean up all the parts (twice) and initially it...