124 electric windows

[dstrong]

Hi all,

I have a problem with the drivers side front electric window on my 300TE-24, it makes horrible clicking sounds at the top of it's travel and sometimes gets stuck when I try to lower it. I assume that the winder mech. is worn out. German and Swedish do replacement mechanisms for around £50 and I was wonder if anyone knows if one of these will cure my problem. I know I could have a look but it means dismantling the door and then putting it back together again until I get the kit as the car is used evey day.

Thanks

Darryl

 

[Richard Moakes]

Don't touch the GSF window mechanism with a barge pole

It is Italian, and has all the finesse of a 1930's tractor!

I have one in my garage, you can have it for £20, sure it works, but it is not smooooth, like my nice new MB motor and regulator :lol:

Richard

1989 W124 300E

 

[dstrong]

Thanks for that, how much was the real MB part?

 

[DavidBlake]

I paid £80 + VAT for a new motor and wire etc from MB for the rear window on my 300CE. remember to use your MBOA card for 10% off.
It was supplied ready to fit with no adjustment required.
You can use the car with the trim panel off while you sort the problem.

 

[Andy]

Hi Darryl

It probably is the regulator that has gone. If you replace the regulator with out replacing the motor, you will probably find that you are repeating the job again in a few months. Especially if its the drivers side as this is the one that is used most often. The problem is the motor gear wears. This wear then, ruins the new regulator as it is made of aluminium. Suggest replacing both parts. IE Motor & regulator.


Hope this helps.

Regards

Andy @ www.mercedesservicing.com

 

[Richard Moakes]

Can't remember exactly, but the motor was over £100, maybe about £120

Worth every penny, smooth as silk :lol:

 

[Bruce_Jeffares]

Help ! W124 electric window stuck down;

Hi All; quiet panic developing here;

The driver's door window has been playing up of late so I have been interested in this item. Today the thing has decided to get stuck, fully open.

Time is short and rain threatens !

Is there a way of manually closing the window, ahead of stripping out the door etc. ?

Please !

 

[Richard Moakes]

Don't wait, repair it now!

I could not see any way of manually winding the window even with the door stripped down! The torque required to move the regulator must be enormous.

The other kicker is that you need the window almost all the way down to remove the regulator and motor mechanism.

Mine started to fail shut, seemed to be temperature dependant.

When I stripped down the motor, it was obviously gone, there was much nastiness in the gearbox and the output shaft had corroded allowing water past the seal.

Good Luck.

Richard

1989 W124 300E

 

[Bruce_Jeffares]

W124 electric windows

Richard; thanks very much for passing on your experiences.

The switch worked this morning, so at least the thing is watertight and secure.

I must say I am not totally certain that replacing the whole lot is the most obvious thing to do next. When it works it seems like new, no 'tiredness' etc.

How do you lubricate these things ? Haynes lists the topic in the index, but that is all there is.

If I have to risk an open window while figuring out how the door comes to pieces, this is a job for the summer ( no garage )

 

[Richard Moakes]

Hi,

I went through that stage, thinking it couldn't possibly need a new motor, when it worked, it was perfect, so how could it be the motor?

The door is easy to strip down, I don't have a garage for the Benz, the RX7 lives in there, so I understand about working outdoors and rain etc..

You can separate the motor from the gearbox which drives the regulator mechanism, there is a worm gear on the end of the motor output shaft which drives the larger internal gear, which subsequently drives a very small gear connected to the regulator. I found lots of moisture in this gearbox and the motor output shaft had corroded, which ruined the seal and allowed moisture into the motor itself.

Off the car, the motor works first time every time, it just seems that it doesn't have the oomph to start every time when connected to the window mechanism.

The regulator is soft aluminium, if the teeth on the gearbox output are worn, then you can be sure the regulator is worn as well.

If you have eliminated all electrical possibilities such as door pin switch, relay and console switch, then I am afraid it can only be the motor

If you open up the door, you can lubricate the gears, I tried that with silicon grease, and thought I was onto a sure fire 'cheap' winner, however a week later the window gremlin was back.

When you do take the door apart for the first time allow a good few dry hours, you will wonder how on earth the regulator comes out of the door and it can be fiddly to get the glass back into the runners. Oh, very important, you will need strong gaffer tape to hold the glass up when the regulator has been removed. Haynes has a reasonable explanation of the procedure, the MB manuals have an even better explanation.

Sorry to be the bearer of bad news, but I would be surprised, and pleased if it turned out to be anything other than a new motor.

Best of luck.

Richard

1989 W124 300E 119K and counting!

 

[Bruce_Jeffares]

W124 electric windows

Thanks for all your efforts Richard !

You are probably right about the motor, but it will have to await funds, and suitable weather ! Tell you when it's done ...

 

[dstrong]

Well I changed the drivers door regulator with a German and Swedish replacement, (MB parts too expensive for a window!!) and I was pleasantly surprised to find it is onlt slightly noisier than the orginal units in the other windows. Ok it is not right to have Italian engineering (did I really put those two words together??) in the MB but £52 is much better than £80 for the motor alone. The problem with the old unit was a lack of teeth on the quadrant at the top most position.

Cheers

Daz