I think my 190D headlight switch has an internal short. It is turning on the indicator and the running light on the left side at ALL time - similar to switching the headlight switch counter clockwise ( 2 positions ) to turn on the left and right side lights. I removed all the fuses and it is still doing the same, so I suspect it is the headlight switch.

I am going to replace the switch to try out but it seems to be a lousy job with over 12 wires attached to the switch. Have anyone changed it out before and can offer some tips? It looks like a PITA job to me.

Thanks.

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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.

I did this some time ago. I don't remember a thing about it, so how hard could it have been?

Oh I don't know about that. It could have been so dreadful that you're so traumatised you now have memory loss!

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

This is the W201 switch. Bunch of wires on the outside then a bunch of wires on the inside behind the white plastic thingie. The W124 is a breeze, it is a plug-in. It can be done but just a PITA job to remember which wire goes to which screw head.

Attached Thumbnails

 

__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.

I find that a smartphone or digital camera works wonders when you need to get something back together. Pencil and paper used to work, but tech makes us illiterate.

I had to replace the one in my Sportline a few weeks ago. Not too bad of a job but take tons of pictures. using tape to hold bunches of wires together may be helpful. I did it by taking one wire off the old and the putting it on the new but that probably wasn't the easiest way.

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Current: 1975 450SEL, 83 300D, 88 Yugo GVX, 90 300D OM603 swap, 91 F150 4.6 4v swap, 93 190E Sportline LE 3.0L M104 swap, 93 190E Sportline LE Megasquirt, 03 Sprinter, 06 E500 4Matic wagon.