Hi everyone

I have a E 220 CDI year 2000. The car is good in general but i have two major problems with it and its mainly because of its electronic keys on the steering wheel.

The first problem is concerning the airconditioning. It has gone on to Fahrenheit and i dont know how to put it back on degrees Celcius.

The second problem is concerning the central locking. When i drive , the doors dont lock automatically. My switch for locking the doors works perfectly .

As i have told you before , i once saw the repairman fixing these two problems using the switchs on the steering wheel.

So if anyone knows how to fix it , please help me.

Thank you