Assignment of the fuses and relay BMW E90, E91, 92, E93 2005-2011. (E-box) cooling fan Crankcase breather heater Radiator: 5: Not used . fuse box diagram (type 4). BMW's map is ridiculously stupid, so it's a bit tough to be sure you have the right ones and all of them. 121, 177, 181 seem to be the right fuses, but who knows which fan that might be for. 2001 330xi
Thank you for the previous links for the FSU and auxiliary fan troubleshoot. I do not think it is the auxiliary fan because it shuts off when I take out the heater blower. The auxiliary fan (fan at the very front of the car by the grill) is turning on and off normally. The air that continues to blow is by the fan filters near the relay box.
5209 posts · Joined 2008. #5 · Mar 21, 2010. No, only comes on when the coolant is too hot. If the belt/viscous clutch fan is moving enough air (assuming your car has auto transmission), electric fan won't run. See your "what's this wire for" thread for an explanation of the coolant temp sensor found in the radiator. 2006 325Ci.
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Heater blower not functioning Google Search Search Forums
Fuel heater (Diesel) F67: 50: Blower output stage: F68: 50: Vacuum pump relay: F69: 50: Engine cooling fan: F70: 50: Secondary air injection pump: F71: 20: Trailer socket: F72 — Not used: F73 — Not used: F74 — Not used: F75 — Not used: F76 — Not used: F77: 30: Fuel injectors Ignition coils Interference suppression capacitor: F78 381 posts · Joined 2011. #1 · Dec 15, 2017. When car is warmed up (engine temp over 95°C ) and both heater controls set to 28°, heat is only coming out on one side of the car - drivers side. This for the foot well, face vents and windscreen vents. Played around with the re-circulation controls, fan, temp settings but makes no difference. 8lC1CFl.
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