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Old 10-08-2002, 09:14 AM
Posts: n/a
dash lights stay on-all the time W124 ???

Need some assistance. My wife's 300TE 4 matic (W124.290/103.985) wagon's dash warning lights will not go out after starting the car. All warning lights stay lit, center triangle warning and all other functions. Never seen this before. Search mode on this problem brought up no prior tech posts. Any ideas?
Thanks in advance for any suggestions.

1993 300TE 4 matic
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Old 10-08-2002, 11:34 AM
it leaks, its german
Join Date: Mar 2002
Location: raleigh nc
Posts: 1,111
bulb prove out is handled by the alternator, check there first.

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Old 10-09-2002, 04:52 PM
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Join Date: May 2002
Location: Mass
Posts: 1,127
I've read this is often a sign of a bad voltage regulator brushes, though I have no first hand experience with this particular failure mode.

Some number of lights did remain on when my alternator died.

Check to see if your alternator is charging.

Try a search on voltage regulator.
1986 300E 5-Speed 240k mi.
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Old 10-10-2002, 03:10 AM
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Join Date: Mar 2002
Location: Los Angeles
Posts: 31
Check your alternator/brushes/charging system. Last time I experienced that (91 300E) xmas tree was about 1 miles before the car died as a result of the brushes. If I recall correctly, there is a circuit that uses the continuity through the brushes, and if those open you get no warning?.....those in the know please help here. Hope it helps.
Adam Reinosa
91 300E 190K
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Old 10-10-2002, 08:26 AM
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dash lights stay on-all the time W124 ???

Thanks for all the help. The car died out on a local drive yesterday. Looks like the alternator quit. Hopefully this will be a warning sign to others when it's about to quit.
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