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Author Topic: X5 Aircon slow to come on!  (Read 276 times)

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May 29, 2018, 12:10:36 PM

Richyroos

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X5 Aircon slow to come on!
« on: May 29, 2018, 12:10:36 PM »
As we have had some hot weather recently (for a welcome change!), I have had the aircon turned on, but every time I switch it on, it is very slow to blow cold air. When it does, it is cold, so not a question of a regas I don't think, the only thing I can think of is that the little fan inside the climate control panel is bunged up, and not sensing the real air temp inside the car.

I thought that I would ask the question before taking it out, in case someone could point to a different cause. I took this apart on an E39, and the fan was quite grubby in that, but did still work, hence my query :blink:
If in doubt, and all else fails - read the instructions!!   :) :)

Current car : 2004 E53 X5 3.0D

May 29, 2018, 10:17:54 PM
Reply #1

henrym3

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Re: X5 Aircon slow to come on!
« Reply #1 on: May 29, 2018, 10:17:54 PM »
I've just had a similar problem where the control module (with the little fan in) failed and in hindsight my a/c was slow to react, replaced module and all was fine. Took the old one apart and that fan was well bunged up and some other bits as well, wonder now if I had cleaned it earlier would it still be working. My advice DO IT. Your not going to do any harm and my save having to buy a replacement.
E53 X5 4.6is, Carbon Black, LPG, Paddle Shift, Dynavin N6, Lowered, 22"Wheels, Side Bars. Perfusion Exhaust
E30 M3 Black, S50B32 Engine, 6 Speed Box, Ireland Engineering ARBs & Big Brake Conversion, Lowered, 18"LMs, CF CAI, CF Splitter & Barge Board, ZM3 Quad Exhaust.
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May 30, 2018, 12:40:32 AM
Reply #2

sleepyfolk

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Re: X5 Aircon slow to come on!
« Reply #2 on: May 30, 2018, 12:40:32 AM »
E53 X5 4.6is Carbon Black 2003
Mercedes CLK 320
Audi A6 Quattro 2.4

May 30, 2018, 06:54:09 AM
Reply #3

themoog

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Re: X5 Aircon slow to come on!
« Reply #3 on: May 30, 2018, 06:54:09 AM »
First before taking everything apart... Get a vacuum cleaner and put the suction hose over the small grills on the ac control panel and see if that clears it. I do that every time I clean out the car.

May 30, 2018, 01:01:24 PM
Reply #4

Richyroos

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Re: X5 Aircon slow to come on!
« Reply #4 on: May 30, 2018, 01:01:24 PM »
Sleepyfolks link was interesting, as the fan in that is different to the E39 fan, which was the same type as computers use for cooling only smaller, still if mine is drum shaped like in the link, it will be that much easier to clean! I will give it a go later, and let you know if it helped!

Thanks to Themoog - but I do that myself already - a good tip though, mind you I doubt many owner realise that is how the cabin temp is measured!! 
If in doubt, and all else fails - read the instructions!!   :) :)

Current car : 2004 E53 X5 3.0D