Drivers window - up but not down!

[gtabomber]

Hi guys!

I was hoping for a better introduction post but this one has me stumped!

My '96 C200 W202 has a fault with the drivers window. I can hear the motor try to go up but it doesnt even attempt to go down. Ive had the switch apart and it seems fine on the multimeter. Fuses are ok (the passenger window wouldnt work anyway) so im suspecting a relay problem. Ive taken a look here however there seems to be no relay relating to windows. Maybe there is a relay behind the door card?

Im going to have another look tomorrow when the sun comes back round but it doesnt look all that promising!

Any ideas?!!

Chris

 

[television]

Hello and welcome to the forum,,you are right there is no relay and the door switch just reverses the polarity to the motor so that it reverses. the motor must be fine and it will be the door switch at fault,,a good squirt with a good switch cleaner could fix it

 

[SQ_W211]

If the Motor is turning but the window is not moving then it could be the glass being stuck on the rails or even rails being too tight and not allowing any movement. Try using Silicon spray on both ends of the window to free up the contact with rails. I dont think its the relay as If it was the relay, it wouldnt even move the motor.

If above doesnt work then you may have to try with new motors.

 

[dave.robbo]

Has the battery been disconnected at all?

Seem to remember that the windows need re-setting after a battery disconnection. Something like half pressing the 'up' for 10 secs after the window is fully up, then half press down, again for 10 secs after it's fully down. Repeat for other windows.

But if the other windows are ok, then I guess this isn't the problem!

 

[gtabomber]

Wow, quick replies!

Ive had the switch in pieces and used a multimeter and it seems fine!

I need to change the ash tray bulb tomorrow so while its all in pieces ill give it a squirt.

I suppose ill have to take the door apart tomorrow then .

When pressing UP you can hear the motor. When pressing DOWN theres nothing at all so id suspect its electrical however i will give things a freeing up as suggested.

Ive only had the car a week and im pretty sure its never had the battery disconnected. All the other windows work anyway so i doubt they just need reseting.

Thanks all!

 

[Dec]

If you’re taking the door card off, no harm in trying this, it’s for the rear window, the front will be similar.

Dec

 

[television]

If you are taking off the door card then its simple to put 12volt onto the motor, then reverse them and one way it must go down.

If the glass is tight in the runners, then the current flowing is higher than normal, and this could have taken the switch.

If the glass is tight, then spray silicon into the runners and it will be fine

 

[gtabomber]

All sounds good, ill give it all a try.

Just had a look at the weather forecast and its saying heavy snow so my window might have to wait a bit!!

 

[television]

All sounds good, ill give it all a try.

Just had a look at the weather forecast and its saying heavy snow so my window might have to wait a bit!!

No staminer these young ones

 

[louwdj]

Intelligent window. Has also seen the weather forecast and decided open window not a wise move!

 

[television]

Intelligent window. Has also seen the weather forecast and decided open window not a wise move!

I had the roof down today, very nice, as you say, not looking good still

 

[gtabomber]

Definately better up than down! All though i have had to use the sunroof. The two valves i forgot the name of need sorting out so the heating isnt stuck on full heat!

Sounds like ive baught a lemon but its quite an honest car with a couple of niggles that need sorting out which should cost me nothing!

 

[television]

The duo valve sir,it always fails in the hot mode.

there is a DIY on this in that section

 

[gtabomber]

Well ive just had the drivers door apart and put a multimeter on the power going to the motor. 12v is there when pressing up but nothing when going down. Ive had the switch apart again and multimeter says its fine.

There must be some sort of control unit between the switch and the motor. Has anyone got any ideas?

Edit: Oh, i got the duovalve sorted at least!!

 

[mattkh]

Well ive just had the drivers door apart and put a multimeter on the power going to the motor. 12v is there when pressing up but nothing when going down. Ive had the switch apart again and multimeter says its fine.

Hi
Any chance of a picture or two.

 

[gtabomber]

Hi
Any chance of a picture or two.

Its all back together now. What would you like a picture of? I dont want to take the door apart again, its a bit fragile!

 

[Dec]

To eliminate the switch for sure you could try swapping the driver side switch over to the passenger side, if the fault migrates to the passenger side then the switch would be at fault.

Did you try my suggestion in post # 6, it certainly got dead motors working temporarily for me, never did it with the front, the are same motor just different lifting mechanism.

Photo of a passanger side regulator which is an opposit to the driver side regulator.

Dec

 

[television]

The switch reverses both wires on the motor, both wires are going to the switch.

 

[hairyg]

Some people have all the luck. SWMBO's Peugeot has failed with the window stuck open! Motor will only run one way even when hot wired direct

 

[television]

Some people have all the luck. SWMBO's Peugeot has failed with the window stuck open! Motor will only run one way even when hot wired direct

Then not the motor stopping it