210 Headlites dimming intermittently 1996
 

1996 210 E300 107k miles. Headlites are stock with 4 new bulbs and I note they intermittently dim while driving on brite or low beam. Anyone know what's wrong?
TIA,
Steve

Run with your climate control in current sensor mode, and monitor the battery voltage. Glance at it when the lights dim. You could have a voltage regulator problem.

If that is not the case, you need to track headlight circuit for faults. Your headlight switch could also have worn contacts, or there could be a failing connection along the way.

How do I get the climate control to go in the sensor mode? I was suspicious of the voltage regulator. Where is it located?
Steve

If you do a search through the forum, you will find a few threads on how to view live data through the digital climate control module. Sounds like it could be an intermittent drop in voltage.