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Old 08-21-2003, 03:54 PM
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MTI MTI is offline
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Join Date: Nov 2002
Location: Scottsdale, Arizona
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Classic case of mis-wired headlights. On the W201 (not entirely sure the W124 is much different) the four wires are placed in the new socket as follows:

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

The best means would be to check the pins with a voltmeter with the different headlight switch positions, but this will probably work.
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