2011 W204 Exterior Temp Guage Showing Wrong Degress !!!

[BoroC220]

Hiya All

My Exterior Temp Guage is Massively incorrect, I have noticed it for a While but today was the Worse, My Local Area was 6oC yet My Screen was 13.5oC

Please help with what the problem is

 

[DSM10000]

Probably a faulty sensor, the car is presumably under warranty still?

 

[BoroC220]

Probably a faulty sensor, the car is presumably under warranty still?

Thankyou, Yeah it's still under Warranty, will take it in to be looked at aswell as a few other faults the car has !!!!