No warm air from heaters

[tiern8546]

Hi,i have a 350sl 2003,the heaters no longer blow hot air only cold is there some kind of solenoid valve to allow hot water through any advice would be great

 

[SLKNick]

Assuming you don't have a climatronic system then it sounds like the duo-valve is stuck or not operating. Before you go delving too far, check the fuse box and also the coolant level.

 

[jazzyglobe]

+1 duo valve or air in the cooling system. Does the car get up to operating temperature quickly???

 

[tiern8546]

hi thanks for replying the car gets up to temp as normal,coolant level is good,will look for fuse do you have any idea of location please