This the correct pin conversion for Euro Headlights on 1983 300D W123. I found this on a earlier search.

The pin conversion for replacing USA version headlights with Bosch Euro version is as follows. Since the wiring color code may not be identical on all models I'll provide both the color code and the old 4-pin number code. The color codes are for a W124 which you can confidently use for that model. If you have a different model, I recommend recording the wire colors and corresponding pin numbers before removing the female pins from the socket. If the color codes don't match with the instructions below, then use the pin numbers rather than wire color when transferring pins to the 6-pin socket.

So here's the procedure: 1) remove back cover from old 4-pin connector and note the wire colors and pin numbers, 2) if you need it, MB part # for the 6-pin connector is 0065458028, 3) insert the old pins into the new 6-pin connector as follows:

- old pin 2 (brown) goes into new pin socket 2
- old pin 4 (white) goes into new pin socket 4
- old pin 3 (yellow) goes into new pin socket 5
- old pin 1 (green) goes into new pin socket 6

3) replace back cover, plug it in, and enjoy much better lighting!

Barrie originaly posted this, THANKS, it works!

[Edited by GA-W123 Diesel on 03-02-2001 at 06:10 PM]

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2000 Ford 7.3 Powerstroke 4x4
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1983 Black 300 D (donated to charity)
1993 Teal 300 D (160K) Sold
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