You have to remove the airbag/steering wheel to remove the plastic shroud around the steering column and stalks.

If the windshield wipers go on when you honk the horn, you have a bad relay.

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1985 Mercedes 190E 2.3(Sold)

Do you have any info about removing the steering wheel/airbag?

Also, how did you remove the speedo needle to put the white face plate?

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1989 300CE Astralsilber/Schwarz
1992 300CE Schwarz/Schwarz

The details for pulling a W201 airbag wheel are well documented on 2Phast's site. I strongly suggest that you get a helper to hold the wheel while dealing with the 10mm allen head bolt and don't leave the steering column in the locked position.

As for pulling cluster needles, all you need is a pair of clean spoons to act as rocking pry bars to lift the needle slowly off the pins. Some people use other cutlery, like a fork, but I think the spoons give more control and equal pressure on two sides of the needles.

So spoons are the magical equipment. Don't the spoons scratch the surfae of the face plate? When I tried pulling the needle with my fingers, I used so much force that when the needle came out, it flipped and went straight into my thumb. I had to pull very hard to remove it. It hurt too. I should have taken a pic, but I was too busy cleaning up the mess. It seems funny now when I think about it.

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1989 300CE Astralsilber/Schwarz
1992 300CE Schwarz/Schwarz

I did say "clean spoons" If the curved bottom of your spoons leave abrasion marks in your mouth, I would get better spoons.

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1989 300CE Astralsilber/Schwarz
1992 300CE Schwarz/Schwarz