I have a clicking as you describe on my CLK. I have also noticed the windscreen demister not so good. I have taken it to an independent mechanic who says this is a recognised fault and is due to a cog slipping on something in the heater. He tells me it is a main dealer job and is likely to be over £1000 !
I NEED THE DIAGRAM FOR TE INJECTOR HEATER FOR A MERCEDES MICROBUS
The heater on a Mercedes c200 will stop working if the heater core is blocked. It allows hot coolant from the engine to be used in heating the cabin.
Scudo heater relay under bonnet on drivers side in fuse box
385 euros @ mercedes main dealer.
The heater and AC knobs on a 1971 250c Mercedes work by turning in a clockwise or counterclockwise manner.
Under the bonnet, under the heater motor filter. It's difficult to get to and requires removing the filter unit. Mk4
In the fuse box, above the bonnet release.
have you checked the fuses? if so, maybe the heater core needs replacing
Have you checked you heater control valve or heater core if working properly.
how do you change heater blower resister merc a class
there is no fuse for a block heater the block heater is installed in the oil cooler on side of engine a lead goes from heater to plug in at front of engine this heater is plugged into 110 power from house.it is not controlled by anything in the truck if it is not working have the wiring checked and have the heater checked wiring for block heater is sold separate to heater,and costs about 80 bucks,heater cost about 70 bucks
The coolant valve to the heater sits above the heater matrix on the inlet pipes. It can be accessed from under the bonnet near the bulkhead below the windscreen.