Drivers door power window switch repair Topic is solved

[medic225]

I was having problems with the power window switch not working on my 2000 V70. Most windows worked fine except one that would not roll up using the driver door switch. That window worked fine using the switch on its door. I was able to take it apart, clean and reassemble the driver door switch and now it works.

Here is what I did:

First remove the switch from the door. Insert a small flat blade screw driver between switch and door panel and pry up gently and the switch will pop free of the door. You may notice in the pictures that I removed the door panel from my door but that is not necessary to do this repair.

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Then remove the 3 electrical connections from the bottom of switch by depressing release tabs on side of connectors and pull out connector.

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Now take the switch to a clean work area then using a small flat screwdriver pry off the grey trim piece from the top of the switch. There are 3 tabs on each side and one tab on each end.

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Optional: give the trim piece a good cleaning with soap and water

Set aside the trim piece and now lets open the switch assembly. It has 3 tabs on each side and one on each end. I used a thin knife blade to release each tab and then inserted a toothpick into the tab to keep it from re-locking while I worked on the next tab.

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Here it is opened up. You can give the top piece a wash with soap and water is you wish. Don't use water on the bottom piece.

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The brass spring fingers are the contacts for the window switch. This is what we need to clean. I used a toothpick wet with some electrical contact cleaner to clean at the contact point of each brass finger. Do not bend the brass fingers just lift them enough to get your toothpick under them. Don't go after the contacts with sandpaper or you will be buying a new switch soon.

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Here is what was under mine.

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Now I brushed off the inside of the switch assembly with a dry soft toothbrush

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Now time to reassemble the switch. Turn the contact assembly and the plastic switches upside down during reassembly. This allows the plastic switches to hang down during reassembly and they will slip into the proper position when the parts are pressed together. When all the switches are lined up then just a little pressure will re-engage the tabs. Test the switches for normal movement. If the switches wont move then take it back apart and try again.

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Now you can put the grey trim piece back on and go back to the car. Reconnect the electrical plugs and test each window.

I hope this fixes your problem like it did mine.

[mikealder]

Excellent write up, nice and easy to follow I guess this will be getting plenty of views due to the number of times I have seen cars with faulty door switches often due to water ingress when the rain water on the roof slides off and straight in to the door switches if you have the drivers window open even just a slight gap is enough to soak the switches! - Mike

[bobice]

That's good write-up, I used contact cleaner, WD40 instead of brush.

[jblackburn]

Excellent! We will add this into the repair database for future help to other members.

Thank you!

[Nscozzaro]

Thank you so much for this post. When I bought my v70 one of the selling points to get the car for less money was this switch issue. I followed your instructions step by step and now all switches work perfectly. You saved me 1000 bucks!

[danschr11]

Just fixed my window during my lunch hour. Thank you very much ,you saved me $500

[gilhuly]

I find that most of these power window issues where there is no motion or grinding or binding are very fixable if you can carefully disassemble the switch and look around and clean up contacts. This is true for virtually all cars. Its not like its a digital circuit or anything. Simple contact circuit with polarity alternating for up and down. Nice write up!

[figmentj13]

Thank you so much!!! My window wouldn't go up and then I found this. I have cleaned all the switches in the car and now all the windows go up faster.(at least I think so)

Pro tip: you don't need to take off the top part to in picture #4 to access the electronic components in the bottom.

This part is optional. I do think it is a good idea because I had dust under mine.

YOU WILL NEED THE TOOTH PICKS!!!! Hardest part of the whole project is disassembly of the switch.(

[Juan62]

Great write-up!

From the Master Switch: my drivers passenger door switch only went down, not up (unless I the actual door switch it self to raise it). Will be cleaning mine very soon. I am currently on my second Master Switch.

[erikv11]

Does anyone know how this compares with the disassembly and cleaning for an 850 master window switch (center console)?