420 sel climate control

[Joe botts]

ok my climate ac/heat kicks on by it self wanna know if its the control unit or the relay and if its the relay where is it located thanks joe

[Benz Mercedes]

this problem is sometimes caused by cracked solder joints in the Climate Contril Unit

Ben

[Joe botts]

how do you fix it

[cool]

hello joe, it is quite unreliable to repair as the trouble will come in and out, best is to replace or look for a good working surplus.

[E150GT]

I am going to the junkyard soon and I know there are plenty of used units out there if you want me to check on the price for you if there is not a junkyard near you.