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#1
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air cond question
however yesterday when leaving work in 32c temps i noticed that the A/C started normally then at each of the four sets of traffic lights i have to sit at before getting onto the motor way at each light the A/C stopped working, got progressively warmer until just hot air blowing. although when on the motorway all was good, and today its working good when i got home i left the car running opened the bonnet ( hood) and the electric fans were not running. there appear to be two fans in front of the radiator, a very course bladed one closest to the rad and then a less course bladed one directly in front of that, the car doesn't over heat at any time the coolant is fine the expansion tank is ok. in other vehicles I've owned as soon as the A/C kicks in the electric cooling fan also starts. can anyone shed some light on how and when all theses fans should be operating many thanks |
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#2
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any ideas, on when the a/c cooling fan comes on
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#3
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Might help if you posted which model/year/etc. of vehicle you own.
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Sent via Telegraph Wires using my Morse Key. 2015 X5 xDrive35i MSport 2013 X5 xDrive35i |
#4
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I can say it's not the 4.8is because that one only has 1 electric fan.
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2006 4.8is, Black on White. SOLD Sniff Sniff. 2017 F85 x5m, Black on Red. BEAST MODE "The older we grow the greater becomes our wonder at how much ignorance one can contain without bursting one's clothes." - Mark Twain Unlock OBC post 5 |
#5
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Quote:
E53 X5s are NOT all the same from 2000-2006...there were some important differences in production thru the years that help us to help you better when trying to answer questions and make suggestions. Provide enough information that will allow us to give the best answers we can.
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Last edited by Qsilver7; 11-23-2012 at 06:40 PM. |
#6
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yep sorry guys its a 2005 3.0d diesel, and ive had a look today and i was wrong there is only one fan in front of the radiator, ive disconnected the connector to the electric fan and there is 3 wires going to it two thick and one thin ( black)
seems the two thick are positive and a negative, i put a meter across it and have 12 volts (13.6 when motor running) im reasonably sure that either the fan has died or that there is some sort of heat sensor that is not working, im thinking of that thin black wire. can anyone shed some light on how to get the fan assembly out?? there is also a small box with a wiring loom heading into it just above the fan connector sitting on the shroud for the mechanical cooling fan. i guess what i need to know is a/ how to get the fan out and b/ is there constant power to the fan and then a control circuit to switch it on and off??? any help will be much appreciated, this thing seems very involved. thanks |
#7
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Not sure how to take it out on your car. Our single fan is inside, infront of engine.
Based on previous threads that black wire is a pulse wire. That is what triggers the fan to kick on. But, what I suggest you try is a bit different. Take it to a good AC shop and have them check how much refrigerant is in the system. Yes, freon pressure and that fan working are directly related.
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2006 4.8is, Black on White. SOLD Sniff Sniff. 2017 F85 x5m, Black on Red. BEAST MODE "The older we grow the greater becomes our wonder at how much ignorance one can contain without bursting one's clothes." - Mark Twain Unlock OBC post 5 |
#8
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Perusing thru the online TIS...it looks like the bumper needs to be removed before the aux cooling fan can be removed. But the front bumper removal instructions don't look that difficult either (there's instruction for that too at the TIS online site).
Below are aux cooling fan & radiator removal instructions for the M54/M57/M62 engines used on the X5 (see how important model details are? ). BTW...the links along the top of the page are live...so you can click backwards to see how I navigated to these DIY instructions...as well as checking to see if there are other TIS instructions you may need. Radiator removal instructions: Aux cooling fan removal :
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Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.
Last edited by Qsilver7; 11-24-2012 at 11:33 AM. |
#9
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Ok the bumper removes in 5 min too. Search for bumper removal by TwinsPoppa. Very nice, picture intense, how to.
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2006 4.8is, Black on White. SOLD Sniff Sniff. 2017 F85 x5m, Black on Red. BEAST MODE "The older we grow the greater becomes our wonder at how much ignorance one can contain without bursting one's clothes." - Mark Twain Unlock OBC post 5 |
#10
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thanks for your help and the links, i had hoped that the fan removal would be fairly straight forward, as it seems however, without removing the front bumper you cant even see the mounting screws.
however before i get to involved i think i,ll take the advice and get the gas levels checked, and see what happens, hopefully thats all it is thanks again to all that commented, its appreciated |
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