Are radiator fans variable speed?
The advantage of a variable-speed engine cooling fan is that the engine is better able to control its operating temperature under varying conditions. The cooling fan’s speed reduces as the vehicles road speed increases, because a larger volume of air naturally passes through the radiator.
Who makes the best electric radiator fan?
- #1 Flex-a-lite Engine Cooling Fan.
- #2 – UPGR8 Universal High-Performance 12V Slim Electric Cooling Radiator Fan.
- #3 A-Team Performance Electrical Cooling Radiator Fan.
- #4 Dorman Radiator Fan Assembly.
- #5 Proform Electric Fan Universal.
Why is my Mercedes radiator fan running on high speed?
Please try again later. This is a very common problem with the Mercedes radiator cooling fan running constantly on high speed. The problem in most cases is a bad ecm so in order to fix it the ecm will have to be replaced and programmed to work with your vehicle. Check the mass airflow sensor first.
What’s the VIN on a Mercedes Benz radiator?
Hi Stan, The fan has 2 wires on it, vin: WDBNG75J8YA084049 . . I guess what I really need to know is the sensor, relay, fuses, etc.. that controll the fan so I can check / measure their function…
Which is the best coolant for a Mercedes?
A great rule of thumb, though, is that if you have an older model Mercedes, with a copper core radiator, then the traditional green or yellow coolant is going to be your best choice. If you have a newer plastic expansion tank, with an aluminium core, then you should go for the blue coolant.
What kind of fan does a Mercedes Benz have?
Category: Mercedes Hi Stan, The fan has 2 wires on it, vin: WDBNG75J8YA084049 . . I guess what I really need to know is the sensor, relay, fuses, etc.. that controll the fan so I can check / measure their function…
Please try again later. This is a very common problem with the Mercedes radiator cooling fan running constantly on high speed. The problem in most cases is a bad ecm so in order to fix it the ecm will have to be replaced and programmed to work with your vehicle. Check the mass airflow sensor first.
What should I do if my engine cooling fan is running at high speed?
Replace the sensor and confirm good location of the wiring connector. Locate wiring in order to avoid chafing of harnesses. Use the AssistPlus to check the reading in the climate control module. As the system is still currently empty, this should read 0 bar. Fill the system with the specified amount of refrigerant and oil.
Why does my C320 CDI sport fan keep running?
New to the club guys but my C320 CDI sport has just developed a loud and constantly running engine fan. It stops when I turn off the engine but when I turn it on – it kicks in after 10 – 15 seconds. I have booked in but I worry as the MB garages are overly expensive…
What happens when air conditioner fan is running at high speed?
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. Also check the AAC pressure at stand still / cold.