Mercedes Benz Cooling Fan Problem

If it is higher the air conditioning control module presumes that the pressure is high and assigns the fan control module to run at 90 pwm actuation.

Mercedes benz cooling fan problem.

The evaporator works in a similar way as the radiator except in this case instead of hot coolant there is cold refrigerant flowing through the evaporator. The cooling fan relay is the relay that controls the engine s cooling fans. Most cooling fans use electric motors that have a moderate to high current draw and as a result are commonly controlled using relays. Check for cooling fan problems using this simple guide and tips.

Also check the aac pressure at stand still cold. Mercedes w211 radiator fan relay location replacement products used in the video. I have a 2008 mercedes gl 450. When the correct parameters are met a temperature switch or.

For example at a coolant temperature of 51 0 c 123 8 f the refrigerant pressure should be no more than 12 bar. The low temperature refrigernat passes through the evaportaor which causes the evaportator to get cold. Turned on the airconditioner but still doesn t run. The cooling fan doesn t run even at a high temperature.