How to replace the final stage unit. This would cause the blower to act erratic at times or cause no air flow from the vents. The IHKA may verify proper operation of the blower by commanding high speed, then OFF, and then listening on the signal line for the CEMF generated as the motor spins down. BMW does not tell us this in any document that I have seen. Read the Wikipedia Pulse Width Modulation article for a For Dummies introduction. 5 hour job . forum member wally X5 did the diy , reckons he could do it faster next time . I let a dealer have the job of replacing my unit under warranty . Bently manual is a must have . this link to BMW TIS my help a bit BMW TIS Online • 5' E53 • X5 4.4i (M62) Offroad • Heating and Air Conditioning • heater with operation Project Time: 1 hours Tab: $65 Talent Tools: Trim panel tool Parts Required: Blower motor final stage Performance Gain: Blower motor works at all speeds Complementary Modification: Replace cabin microfilter The blower motor resistor (final stage) is utilized to control blower motor speed. My build date is 4/2003 so my 4.6is is another example of the wiring diagram from a FACELIFT e53 is correct and not what BMW has published. So the wire routing is Battery >Fuse 61 (50A red blade fuse) > Fuse F107 (50A Fuse strip at F107 on top of the fuse block in the glove box) > Aux Fan plug Red/Blue wire. BMW X5 3.0i: On a 2001 BMW X5 (E53), the HVAC control panel On a 2001 BMW X5 (E53), the HVAC control panel went dark (does not light up any temp or indications) and the blower runs continuosly at a middle speed, even when ignition is off. The auxillary fan on my X5 3.0i is not working. Air conditioning works while driving but not at lower speeds/stops, and coolant temperature shoots up after its been driven around for a bit or if its hot outside. (Which promptly comes back down after I turn the heater on!) This is a bit of a nit since the car is so low mileage, I don't really When i start my BMW X5 3.0d year 2006 e53 cold on winter mornings and turn heater temp to 23 degrees upwards the engine runs perfectly (only 35000 miles) but what sounds like an electric motor comes f … It cost me (with a case, extra) $179 after New Years, then another $ 80 to add BMW programming (I knew I was soon to get the X5, in May). So, far, just the A/C clutch fix was worth buying the Foxwell. You might try it on your BMW, too. 01 BMW X5 E53 3.0i, 5L40E, 7/13/01. 14 Lexus ES350; 09 HHR Panel; 04 Chevy 2500HD; 98 GMC Sierra 1500Ext. TQjMN.

bmw x5 e53 blower motor