Cooling fan problem

Mulush · 07-27-2010, 07:21 PM

2007 bmw 328xi was hit in the front. Since I'm a "do it myself" guy, I fixed it myself..only thing I need is the cooling fan won't turn on. I'm just wondering if anyone has the wiring diagram for the cooling fan from the car to where it connects to the fan. Thank you.

Mulush · 07-27-2010, 07:24 PM

I should've included that the wiring from the car comes all the way to the fan, but it only has 3 wires, the fan needs 4 tho, I'm just wondering which wire I'm missing.

Alex123E90 · 03-15-2011, 12:19 AM

bump. I know this is an older thread but I've searched and searched and this is the only one that describes the same problem as mine...

Anyone know any way to fix this? I have a manual 325i 2006, and I'm guess the extra wire on the fan is for an Automatic. My car only has 3 wires coming from the connector.

bigvic4545 · 08-27-2011, 07:46 PM

I know this is old but im going through the same issue now. My car also hit in the front and i rebuilt the whole front end. Everything is good to go expect that the cooling fan wont turn on. All sensors are working, thermostat and water pump are ok, bleeding procedure done.

The fan has 4 wires coming out of it.. 1 positive, 1 negative, a yellow thin wire, and a black thin wire.

The vehicle (2007 328xi automatic 33k miles) has 3 wires coming from the socket...1 pos, 1 neg, and 1 thin black wire.

someone please help... IF ANYONE HAS THE WIRING DIAGRAM FOR THE RADIATOR FAN WIRES PLEASE SHARE.

thank you

bhmax16 · 08-27-2011, 10:29 PM

I got my hands on a small schematic through alldata but no matter what I try it won't let me attach a thumbnail or photo here

bigvic4545 · 08-28-2011, 11:39 AM

Quote:

Originally Posted by bhmax16

I got my hands on a small schematic through alldata but no matter what I try it won't let me attach a thumbnail or photo here

wow..could you possibly email me that to victor.f.45@hotmail.com

I would greatly appreciate it.

AddictedToBavarian · 08-28-2011, 12:54 PM

Quote:

Originally Posted by bhmax16

I got my hands on a small schematic through alldata but no matter what I try it won't let me attach a thumbnail or photo here

You don't have enough posts to do that.

F104 · 08-28-2011, 02:00 PM

Mine thas three wires, a thick red and black (positive and negative) and a thin green one. The red one has 12V+ as soon as the ECU comes on. The green one is the (pulse signal I guess) control wire from the ECU. It provides the variable fan speed control etc.

bigvic4545 · 08-28-2011, 04:28 PM

Quote:

Originally Posted by F104

Mine thas three wires, a thick red and black (positive and negative) and a thin green one. The red one has 12V+ as soon as the ECU comes on. The green one is the (pulse signal I guess) control wire from the ECU. It provides the variable fan speed control etc.

is your car auto or manual? and do you have the cold weather package?

F104 · 08-28-2011, 04:43 PM

Quote:

Originally Posted by bigvic4545

is your car auto or manual? and do you have the cold weather package?

Manual, no cold weather pack

bigvic4545 · 08-28-2011, 07:16 PM

Quote:

Originally Posted by F104

Manual, no cold weather pack

Yea thats why you have 3 wires...mines is automatic with cold weather and has 4 wires.

07-27-2010, 07:21 PM	#1
Mulush Registered 2 Rep 2 Posts Drives: 2007 328xi Join Date: Jul 2010 Location: Lititz, PA iTrader: (0)	Cooling fan problem 2007 bmw 328xi was hit in the front. Since I'm a "do it myself" guy, I fixed it myself..only thing I need is the cooling fan won't turn on. I'm just wondering if anyone has the wiring diagram for the cooling fan from the car to where it connects to the fan. Thank you.
	Appreciate 0 Tweet Quote

07-27-2010, 07:24 PM	#2
Mulush Registered 2 Rep 2 Posts Drives: 2007 328xi Join Date: Jul 2010 Location: Lititz, PA iTrader: (0)	I should've included that the wiring from the car comes all the way to the fan, but it only has 3 wires, the fan needs 4 tho, I'm just wondering which wire I'm missing.
	Appreciate 0 Quote

03-15-2011, 12:19 AM	#3
Alex123E90 Enlisted Member 2 Rep 38 Posts Drives: 335i Join Date: Feb 2011 Location: Chicago iTrader: (0)	bump. I know this is an older thread but I've searched and searched and this is the only one that describes the same problem as mine... Anyone know any way to fix this? I have a manual 325i 2006, and I'm guess the extra wire on the fan is for an Automatic. My car only has 3 wires coming from the connector.
	Appreciate 0 Quote

08-27-2011, 07:46 PM	#4
bigvic4545 Enlisted Member 0 Rep 32 Posts Drives: 2007 328xi Join Date: Mar 2011 Location: Paterson NJ iTrader: (1)	I know this is old but im going through the same issue now. My car also hit in the front and i rebuilt the whole front end. Everything is good to go expect that the cooling fan wont turn on. All sensors are working, thermostat and water pump are ok, bleeding procedure done. The fan has 4 wires coming out of it.. 1 positive, 1 negative, a yellow thin wire, and a black thin wire. The vehicle (2007 328xi automatic 33k miles) has 3 wires coming from the socket...1 pos, 1 neg, and 1 thin black wire. someone please help... IF ANYONE HAS THE WIRING DIAGRAM FOR THE RADIATOR FAN WIRES PLEASE SHARE. thank you
	Appreciate 0 Quote

08-27-2011, 10:29 PM	#5
bhmax16 Lieutenant 167 Rep 398 Posts Drives: '22 M4, '23 CX-50 Join Date: Jul 2011 Location: North Carolina iTrader: (0)	I got my hands on a small schematic through alldata but no matter what I try it won't let me attach a thumbnail or photo here
	Appreciate 0 Quote

08-28-2011, 02:00 PM	#8
F104 Captain 19 Rep 732 Posts Drives: E92 320D M-sport Join Date: Apr 2008 Location: belgium iTrader: (0)	Mine thas three wires, a thick red and black (positive and negative) and a thin green one. The red one has 12V+ as soon as the ECU comes on. The green one is the (pulse signal I guess) control wire from the ECU. It provides the variable fan speed control etc.
	Appreciate 0 Quote