I dont have heating inside the car

[basamir]

Hi all,

I have a manual clim and i dont have heat, only cool air however the switch off heating is on or off?
Plz help

 

[LYNALL]

You dont say what car you have but search for (duo valve).



Lynall

 

[brandwooddixon]

If you turn the temperature dial to the hottest setting and if you don't get any hot air from the system then it is possibly a duo valve system.

I take it that you have no other problems with the car, and that it's coolant system is full?

 

[television]

Hard without knowing the car,duo valve normally fail in the hot mode, and if the is an inline pump it could be that which has failed

 

[twistedsanity]

Don't worry too much, summers coming, you have a good few months to get it sorted

 

[basamir]

yah i was forget, my car is a W202 C250TD Jul/1997 (II).
Yah i was suspect the duo valve. I dont have any problems with my coolant system, i have a very good cool air when i chose cold but with hot nothing else thant cool air
So i was mesurate the tension between + and - off both valve, 9V when roller is in position hot and 11V when position off roller was in cold.
Also, when i touch the output off duo valve or input i dont know exactly (2 pipes) both off theme was hot whene roller is in hot.
So what happ friends????!!!!!!

 

[basamir]

up friends

 

[Dec]

Has anyone removed the Hearer Control unit before this problem happened?

Dec

 

[television]

The pump is 150 in the link, is this running


http://www.detali.ru/cat/oem_mb2.as...GM=717.460&CT=F&cat=44V&SID=83&SGR=180&SGN=05

 

[basamir]

this pump. i was spent one day to search in the engine compartiment to find it but nothing.
Can you tell me plz where can i find it, near to what? above what? plz

 

[television]

If you have one and I am sure that you should the intake comes from the front of the engine and the output hose goes to the duo valve as in the link

If the pipe to the duo valve comes directly from the front of the engine pump, then you have not got one

 

[basamir]

If you have one and I am sure that you should the intake comes from the front of the engine and the output hose goes to the duo valve as in the link

If the pipe to the duo valve comes directly from the front of the engine pump, then you have not got one

this is my duo valve with 2 pipes in the right side and only one pipe in th e other side:

where can i have this pump if i have it in the left side i suppose?

 

[basamir]

I believe if ever I have the duo valve, this is will be in the part of the engine close to the instrument panel? But how I must make to reach it?

 

[television]

It is too late tonight and I have done 100 answers today.

In the morning I will look on my MB computer for some more help on this

 

[basamir]

Ok television u r so kind thinks a lot and have a nice night.

 

[basamir]

Hello friends and good morning.
I'm waiting for your genius plz

 

[Dec]

where can i have this pump if i have it

The "one pipe in the other side" will always be hot.

Dec

 

[television]

Dec I was thinking last night in bed, that if the engine temp never got above say 40c, if you put water at 40c through a heater matrix, it would not feel warm once it has been blown through with the fan, just a though, thanks for the picture

 

[Dec]

Good point Malcolm.
So basimer what is the temperature reading of the car when hot, it should be about 80c to 82c.
The pipes should be very hot to touch.

Dec

 

[basamir]

yeh exactly Dec.
The temperature reading is between 80 and 82 or 83 when the engine is hot and 2 pipes (output off duo valve) are hot hot also the duo valve electrical equipment.