Webasto outside temp problem

Hatta

New Member
Hi!

I got a transporter 2018 T6 4motion that have served me very well but now as the cold came and i wanted an ice free windshield i discovered that my heater is not working as it should.
Problem is that the heater is showing 77.5 deg c outside temp and turns off due to to exceeded temp limit outside.
With igniton on it shows the same temp as ACC panel does.

I've tried change the tempsensor in the front with no success. Also changed Webasto waterpump becuse it made a little noise and was due to brake anytime soon anyway.

I've checked Alldata for wiring diagrams and the only sensor for temperature outside is the one in the front.

Tried to use remote support with odis to check the heater acc and try to reinitate it no success!

Found this forum while searching for clues online and got my fingers crossed someone messed with this before!
 
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