Climate control very Dim on temperature read out




Supposedly Mercedes looked at it for 2 hours and found nothing.
Someone mentioned a ribbon wire cable from the rear view box going up to roof light controls may get pinched causing dim daylight AC display. Any thoughts are greatly appreciated. Thank you
You can use an MB scanner to interact with the module.
Issue likely:
oxidized GND post or
oxidized circuit board pins.
Last edited by CaliBenzDriver; Mar 7, 2026 at 09:57 AM.


