210 Headlites dimming intermittently 1996

[Bodgit2]

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

[Matt L]

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.

[Bodgit2]

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

[Ali Al-Chalabi]

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.