Hi,

My blower / Fan does not come on despite with Heater Control on the console displaying everything to is in order >That is - low to high & speed indicator is looking normal on thr display.
What may be related to this blower issue is that the sun / moon roof does not operate correctly - it opens in increments of about 2 inches then you have to stop and press it again and again until until its fully open???
OR could it be I need a new Heater Control unit that may be faulty?

Any thoughts would be appreciated as its very difficult driving up with steamy windows. (I wouldn't mind if there was something else going on in the car )

Mark -
1999 S Class

 

close the roof and then push the button UP to the vent position and hold it for several seconds. then pull the switch back to the first detent and hold it to open roof then when it goes all the way back it should work normally. then try it again and see if the roof works correctly.

 

Your a genius, thank you so much it worked first time!!!

Any ideas about the blower/ heater control?

Mark