Member Since: 17 Jul 2021
Location: The Empire
Posts: 174
Windows fogging up with heaters on?
Hi all,
My windows started digging up today after a bit of a downpour I have the exon turned off as I want the engine to warm the car now, any idea why this is happening and fixes for it?
Cheers,
Sol
7th Oct 2022 11:01 pm
jamez79
Member Since: 03 Sep 2018
Location: Staffordshire
Posts: 567
I may be wrong, but I doubt having the aircon on or off will make much difference to the engine warming up. The fogging up will be from turning the air con off and on as the air starts to become more humid with it off.
My AC is on all year round, set on auto. Just get in the Disco and drive it sensibly until the engine is warmed up after a few miles. Or use the fuel burning heater whilst having your morning cuppa.
8th Oct 2022 2:11 pm
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8072
Could be a sign your sun roof drains are blocked, check for wet carpets, set the heater to a lowish temperature 20c and the vents to fresh air, not recirculating, zircon off shouldn’t take more than 2 minutes to blow warm air. Never change mine summer or winter. It can when others can't,
It will when others won't,
It goes where others don't.
8th Oct 2022 6:30 pm
Dave T
Member Since: 03 Jul 2009
Location: Glasgow
Posts: 6902
jamez79 wrote:
I may be wrong, but I doubt having the aircon on or off will make much difference to the engine warming up. The fogging up will be from turning the air con off and on as the air starts to become more humid with it off.
My AC is on all year round, set on auto. Just get in the Disco and drive it sensibly until the engine is warmed up after a few miles. Or use the fuel burning heater whilst having your morning cuppa.
Sounds about right, Joined the BMWX5 45e group
1994 Defender 90
2015 RRS Corris Grey/Black roof
2016 D4 Graphite Santorini Black
2012 D4 XS Orkney Grey
2005 D3 S Maya Gold
Convoy for Heroes 2011
8th Oct 2022 8:31 pm
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Re: Windows fogging up with heaters on?
sol_stevo wrote:
Hi all,
My windows started digging up today after a bit of a downpour I have the exon turned off as I want the engine to warm the car now, any idea why this is happening and fixes for it?
Cheers,
Sol
A/c on will mean the engine actually warm up quicker as it has more load on it, do not forget the a/c does not work below a certain external temp anyway, 5 degc rings a bell?
Have a look under your carpets for water, not floor mats but the carpet under the mats.
9th Oct 2022 8:14 am
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8072
Air con does works all the time when switched on albeit as a dehumidifier at lower temperatures It can when others can't,
It will when others won't,
It goes where others don't.
9th Oct 2022 9:17 am
Pedros
Member Since: 25 Jun 2011
Location: Cumbria
Posts: 454
Steamy Windows (not of the Tina Turner variety sadly) generally only happens with me when the weather has been pretty damp and the car's been sitting in it. A few miles down the road though and it's all tickety boo.
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