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Air con usage.

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Grandadrob

Member Since: 21 Dec 2017
Location: Leominster
Posts: 279

2009 Discovery 3 TDV6 HSE Auto Bournville

Air con usage.

So we know that not using the air con for longish periods like winter, can lead to problems.
In our modern vehicles with climate control etc, does winter use of climate control mean that the air con is not being used. Sounds like a really silly question, but I was wondering...... 1955 SWB Series 1 86 inch
1960 SWB Series 2 88 inch
2009 Discovery 3 HSE Bournville Pearl

11th Aug 2019 6:27 pm

MikeO

Member Since: 15 Jan 2014
Location: The Cotswolds
Posts: 1372

It runs in the winter too to dry the air as I understand it. It's not just for cooling. 2016 Skoda Octavia VRS Estate
<gone>2009 FF Vogue TDV8 Buckingham Blue</gone>
<gone>2015 BMW 520D SE (not my favourite car)</gone>
<gone>2009 D3 HSE Galway Green</gone

11th Aug 2019 6:29 pm

lynalldiscovery

Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti Grey

Leave it on all the time, the only time it will switch itself off is if the outside temp is to cold.
A/c dries the air just like a dehumidifier.

12th Aug 2019 6:35 am

aja4x4

Member Since: 14 Apr 2019
Location: Westbury
Posts: 2459

2005 Discovery 3 TDV6 SE Auto Zambezi Silver

Yes just leave it on, it works all year round.

Our vehicles are designed for it to work all the time, if you switch it off you wont get anymore power or mpg.
The old systems that used to use R12 gas could rob 5-10bhp from your engine and make a big difference to your mpg, switching it off made a noticable difference to both.

12th Aug 2019 7:27 am

Pete K

Member Since: 15 Jan 2016
Location: GL
Posts: 10362

2005 Discovery 3 TDV6 HSE Auto Rimini Red

pressing the ECO button will also turn the AC off.

Otherwise its on when climate is on

12th Aug 2019 12:05 pm

Disco dazboy

Member Since: 02 Dec 2013
Location: Leicestershire
Posts: 1782

2008 Discovery 3 TDV6 XS Auto Stornoway Grey

I thought on the discovery even when the a/c is turned off it still operates on a low setting? D3 x2 now gone
Volkswagen Tiguan Allspace 4motion

12th Aug 2019 12:33 pm

lynalldiscovery

Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

I believe that is the case as the compressor is variable displacement (which is why you cant really notice its on unlike the old systems which were simple on/off) and even when a/c and climate off its still idling at something like 1 percent.

Last edited by lynalldiscovery on 12th Aug 2019 2:05 pm. Edited 1 time in total

12th Aug 2019 2:03 pm

lynalldiscovery

Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

20 seconds onwards short and sweet

12th Aug 2019 2:05 pm

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