Has your a/c switch not been working properly? Have you had to fiddle with it to get it to stay on? Does it cut out while driving?
All these were happening to me and i figured I would try and fix it before buying a new switch. This is really simple and I'm sure most of you already know how to do this (there may even be another write up, I didn't look)
Here is the culprit:

To get to the inside, all you have to do is take a small flat head screwdriver and pop the out cover around the tabs on the side

When you take it apart you'll see the two bulbs, springs and a little grey plastic tab between them. The little tab fell out as I was pulling it apart so make sure you don't lose it.

You can tell by looking at the connections inside and out that there is a far bit of corrosion. Its 25 years old so that's to be expected.


Take the springs off and push the lights through the bottom, this will give you more room to get in there to clean the leads. I used my handy dandy dremel for the job

After about 5 minutes of scrubbing away, you can clearly see the difference

Put the switych back together and reinstall everything. Now it should work with ease. Before i had to like press it several times to get good contact, not now, works flawlessly with one push

Hope this helps some of the broke e30 owners. You can do this to any of the switches they you are having problems with.
All these were happening to me and i figured I would try and fix it before buying a new switch. This is really simple and I'm sure most of you already know how to do this (there may even be another write up, I didn't look)
Here is the culprit:

To get to the inside, all you have to do is take a small flat head screwdriver and pop the out cover around the tabs on the side

When you take it apart you'll see the two bulbs, springs and a little grey plastic tab between them. The little tab fell out as I was pulling it apart so make sure you don't lose it.

You can tell by looking at the connections inside and out that there is a far bit of corrosion. Its 25 years old so that's to be expected.


Take the springs off and push the lights through the bottom, this will give you more room to get in there to clean the leads. I used my handy dandy dremel for the job

After about 5 minutes of scrubbing away, you can clearly see the difference

Put the switych back together and reinstall everything. Now it should work with ease. Before i had to like press it several times to get good contact, not now, works flawlessly with one push

Hope this helps some of the broke e30 owners. You can do this to any of the switches they you are having problems with.
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