What can cause a blower motor to stop working?

In a situation where the motor doesn’t work on any speed, the most likely causes are: a blown power supply fuse, a bad motor ground connection, bad motor speed control module or a failed motor. On all systems, a failed blower motor is least likely. Start by checking the blower fuse and HVAC controller fuse.

Why did my heater fan stopped working?

If you see or hear the fan turn on, your blower motor is not the culprit. If the fan does not start, you have a wiring issue (circuit breaker trips) or motor problem (circuit breaker does not trip). While your thermostat may be at fault, only an HVAC technician can diagnose and remedy the issue correctly.

How do I know if my blower relay is bad?

If you have a faulty blower motor, you may experience low airflow from the vents, even when the fan is on high. There will be no air coming from the vents if your fan isn’t working due to a bad blower motor resistor.

Can a BMW 325i blower motor resistor fail?

The blower final stage fan resistor is known to fail. Symptoms are the heater fan speed varies regardless of the setting, the fan will not turn off when the car is switched off, or the fan will not switch on at all. The average cost for a BMW 325i Blower Motor Resistor Replacement is between $364 -$400.

Where is the cooling fan on a BMW E46?

BMW E46 models came equipped with two cooling fan configurations. Automatic transmission models utilize an electric fan mounted on the front of the radiator. The fan final stage is mounted to the fan and is controlled by the engine control module (ECM).

Is the a / C blower fan on my BMW not working?

Hey guys, I’m a new BMW e46 owner from the UK, had a few glitches with my car (2001 330d Tourer), and have managed to solve all of them from reading posts on this forum (and a few others..)

How do you change the fan on a BMW 325i?

Working at the top of the radiator, remove the expansion rivets from the intake air duct (green arrows). To remove the rivets, you can use a small flathead screwdriver to pry them up, then using needle-nose pliers, pull the rivet out.