duovalve

  1. S

    That Duovalve

    Greetings, I have recently acquired a 1995 E220 Coupe and I have been lurking on here and doing a lot of reading. With the assistance of the forum I have restored heating to my Vehicle. I cleaned out the duovalve and for good measure I put in a new thermostat. Nice and toasty in the cabin...
  2. 1

    W124 Duovalve - 1989 300E

    Hi, Looking for a hand with the duovalve and associated blower controls. It's a non-AC car. The air blows hotter than hell in any position other than the very top at the 'MIN'/blue position. I mean when you rotate the roller until it clicks in the highest position at blue, which seems to lock...
  3. T

    HELP where's my duo-valve C220 W203

    Can anyone tell me where the hell I find my heater duo-valve on a 2004 C220 W203. I'm only getting Luke warm air into the cabin and need to try and flush the system as I've probably got a blockage. I've already replaced the thermostat so hoping this might cure it. I'm presuming it's in the...
  4. mmerc

    new parts

    where is the best place to order new duo valve for my w220 s class online before i go too stealers thanks in advance.:wallbash:d
  5. Rorcus

    Heater control Duovalve only or a flap?

    My heater wasn't working at all and after changing the Duovalve I can get nice hot air, but if I then switch it back to cold it stays hot for ages until the heater matrix is obviously cooled down after the duovale has shut. So is the w210's Hot/Cold purely controlled by the Duo valve or...
  6. T

    bodged wiring duo-valve help

    I took a quick look at my duo-valve heating problem of it always blowing hot. Have read up and am well aware of the cleaning route and will be doing that tomorrow. My problem is part of the problem could be the cut and bodged wiring I have found. The duo valve plug is wired fine, the recirc...
  7. A

    Wanted W202 Duovalve

    Duovalve wanted to experiment on. Must have come from a W202 and be cheap. Thanks, Andy
  8. jonnyboy

    126 duovalve

    Anyone got a serviceable duovalve for a 126? my 300se has failed and one of the staff is using it for a bit. Part number is a0008301884 according to EPC as its got aircon but I could consider a1268300084 no aircon as it may work? Cheers John
  9. A

    W202 Duovalve

    Does anyone know how a Duovalve differs between W202 models? Why are ones for diesel engined W202s twice as expensive as those for petrol engined W202s? Andy
  10. K

    500SEC duovalve

    Does anyone have any tips on fitting a new duovalve on my 1987 500SEC. I am a little nervous about going ahead without some informed info.
  11. M

    Duovalve and Recirc pump

    Hi, I was wondering if anyone knows exactly where the Duovalve and Recirc pump is located in A C200 1994 2.0? Thanks Mas
  12. lynall

    Duovalve question

    I have finally fitted my webasto heater and now have another prob, when heater is fired up i also press the rest button which switchs on the elec coolant pump and the interior fan, this can be done via a relay on the webasto unit but i wanted to keep it as a seperate unit. Now when the webasto...
  13. andy27168

    C43 Duo-valve Heater Mod Maybe?

    Hi, Having read a lot about the duo-valve in the heater system I got to thinking about the one on the C43. The duo-valve has 1 coolant feed dividing it into 2 water hoses going into the heater system in the car enabling the temperature to be controlled individually drivers and passenger side...
  14. mykaitch

    Heater duovalve

    I think mine is sticking. Where is the duovalve/what does it look like ? Is it as easy to do as the window reg ? I keep getting hot air only - more often that not. When not the air con seems fine. Yesterday left centre vent hot, right cold. Duovalve problem ???:confused:
  15. Parrot of Doom

    HOWTO: Clean the Duovalve - w210

    Right, as I'm having problems with my aircon (blowing intermittently hot on driver's side) I thought I'd check out the duovalve to see if it was working correctly. Feel free to point out any stupid errors I've made, but this is what I did: 1) The duovalve from what I understand controls...
  16. Parrot of Doom

    Howto: Clean the Duovalve

    Right, as I'm having problems with my aircon (blowing intermittently hot on driver's side) I thought I'd check out the duovalve to see if it was working correctly. Feel free to point out any stupid errors I've made, but this is what I did: 1) The duovalve from what I understand controls...
  17. F

    duovalve problem - fixed

    have had a problem with the aircon / heating for a while - was sure - ( been advised by many here ) that it was the duovalve but not keen to spend £180 (stealers price ) or £120 ( europarts price ) and find out all you experts were wrong. Today took the plunge and attacked it - removed 5 torx...
  18. F

    duovalve wanted

    have the common problem of a faulty duovalve - as its getting to hotter times will need to replace it soon - anyone got a spare lying around - 98 e210 ?? if so let me know what you want for it. Have seen one for £116 at europarts.
  19. K

    Duovalve tick ticking

    Right quick question regarding my duovalve (also known as heater valve). When engine is hot (85 deg C) and temperature selector dial is turned fully Blue until it clicks, there is a loud and unmistakable tick tick tick from the 2 duovalve cylinders. I can feel the ticking vibrations greatest...
  20. R

    DUOVALVE CHANGING - Help

    Anyone changed a Duovalve on a W210 ? can you provide any instructions please. From scanning the thread it sounds like if one side is blowing cold and the other hot either on occassions or all the time then the Duovalve is faulty. Can it be cleaned up or does it have to be replaced. Thanks
Top Bottom