Why is my Mercedes Benz cooling fan not turning on?
But you can check how much the voltage changes during igniton off/on, engine running/AC on to maximum cooling. If you see the change- this means ECU is giving out comands and wiring is ok. So that leaves Fan module as the weak link. Mercedes uses their own transmissions, which are repairable.
Why does my Mercedes E320 AC not reset?
For example, if you want to know about Mercedes E320 AC reset, it is better to check the manual and follow the manufacturer’s recommendations. If a Mercedes air condition reset does not work, these following reasons could be causing the trouble: When the AC is releasing hot air, the possible reason could be a defect in the damper.
How to troubleshoot your Mercedes Benz air conditioner?
Identify the location of your compressor. Look at the pullyer and you should be able to see if it spining or not. The engine running turn the A/C on max cool, set fans high, and make sure that the clutch is engaging on the compressor. The pulley spins any time the engine is running. The center part of the A/C pulley only engages when the A/C is on.
Why is the ECM not working on my Mercedes?
It seems very strange that ECM does not actuate the fan at 95 in the cluster, since one sensor is used for both. If you get a year warranty on the rebuilt transmission, that is a good deal, since the repair will cost as much, but will immobilize the car for a while.
Who is the Mercedes mechanic for the E320?
Answered in 1 minute by: 3/29/2012 Mercedes Mechanic: Marty, Mercedes Technician replied 9 years ago Marty, Mercedes Technician Category: Mercedes Satisfied Customers:57,141 Experience: Bosch Certified Master Tech. Over 35 years experience. Verified eurotec :
Is it OK to turn AC off on Mercedes Benz?
On some older Benzes, it is ok for temperature to rise with AC off, to reasonable extent (102C) of course. At this point, fan actuation must be checked with Star Diagnosis. I think the Fan module does not actuate the fan at lower end of output request. When temperature is below 100C- fan output request could be under 10% of full power.
What kind of compressor does a 2002 Mercedes E320 have?
2002 Mercedes E320 compressor had 12 volts but won’t engage . read more Lou Palomino associates in automotive technology 11,061 satisfied customers EC light will not turn off not getting air conditioning
Why is my Mercedes-Benz E320 AC not working?
Learn if it’s a simple fix or time to seek out a trusted technician. Not your vehicle? Why Isn’t My A/C Working? What are common reasons my Mercedes-Benz E320 has air conditioning problems?
Where are the fuses located on an e320?
You can also see a list of all the fuses, their designation and layout. The fuse boxes shown below are apply to 1996 1997 1998 1999 2000 2001 2002, models E320 E420 E430 E55 AMG. The main fuse box is located on the left side in the engine compartment near the windshield. Here is a layout of the fuses in the main fuse box.
Why does my Mercedes not start when I charge the battery?
This Mercedes-Benz is not starting because of a low battery. In this case, what you need to do is trickle charge your battery using any of these 12 volt battery trickle chargers. If you need help read this article on How to charge a Mercedes-Benz the right way. Mercedes won’t start, and it’s not the battery.
What should I do if my Mercedes Benz won’t start?
Start the car and you should be able to get around 60 psi. When the engine is running and when you turn off the engine the pressure should stay steady. Always perform this test on a cold engine. Next, make sure that the fuel injector connections are secure and not loose. Check the fuel pump and the fuel pump relay.
Why is my Mercedes radiator cooling fan not working?
This feature is not available right now. 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 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…
On some older Benzes, it is ok for temperature to rise with AC off, to reasonable extent (102C) of course. At this point, fan actuation must be checked with Star Diagnosis. I think the Fan module does not actuate the fan at lower end of output request. When temperature is below 100C- fan output request could be under 10% of full power.
How to troubleshoot your Mercedes medic air conditioner?
Turn the A/C ON. If you have an Economy button make sure that is off. Make sure fan is on HIGH, temperature selector is turned all the way to COLD, and that the A/C and recirculate light indicators are on. Set the temperature to cold, the lowest setting. Set the cooling fans on high on the climate control.
But you can check how much the voltage changes during igniton off/on, engine running/AC on to maximum cooling. If you see the change- this means ECU is giving out comands and wiring is ok. So that leaves Fan module as the weak link. Mercedes uses their own transmissions, which are repairable.
Where is the coolant fan relay located in a Mercedes Benz?
The coolant sensor is just one of them. It also looks at A/C refrigerant pressure and the outdoor ambient air sensor as well. Both the ECU and the climate control modules can directly control the fan and it’s speed. The fan itself is intelligent and has it’s own module as well.
What are the signs of a bad cooling fan?
Common signs include the engine running hot and cooling fans either not functioning or running all the time. 1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
How often does a car cooling fan stay on?
Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.