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Home > Faults & Fixes > Front and rear heated screens take ages to work

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Armadillo

Member Since: 17 Jan 2012
Location: Cambridge
Posts: 1

2008 Range Rover Sport TDV8 HSE Java Black

Front and rear heated screens take ages to work

My 2008 RRS front and rear screens seem to take ages to defrost - is this normal?

The front heated screen takes about 6 minutes to clear and the rear one takes 10 minutes and one element near the base of the rear screen seems to be not working?

Is this normal. I bought it a few months ago and now its cold this is the first time i have needed to use them and just noticed it.

Tue Jan 17 2012 1:52pm

Very Annoyed
Site Moderator

Member Since: 23 Aug 2005
Location: bat-wielding monkey-spanking tough-love zero-tolerance Euro-sceptic moderator - So just watch it!
Posts: 19459

Front - normal Rear - not normal. 2005 Zambezi TDV6 - Gone but not forgotten
2009 Alaska TDV8 - Gone and much missed.

WINNER - 2009 �Idler Of The Year� Award
Runner Up - 2009 �Just Doing What It�s Designed To Do� Award

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Tue Jan 17 2012 2:03pm

RRSTDV8

Member Since: 13 Aug 2011
Location: Northamptonshire
Posts: 8844

2012 Range Rover Sport SDV6 HSE Orkney Grey

Front screen takes 6 minutes? Not normal in my experience. The front screen has been clearing in less than 2 minutes with -4degC outside. Are you directing air on it too? With the FBH, the air in mine is warm in about a minute and this really helps the front screen defrost. 2012 SDV6 - it's missing a couple of cylinders
2008 TDV8 - it was a labour of love and is much missed

Tue Jan 17 2012 5:05pm

Supacat

Member Since: 21 Feb 2009
Location: West Yorks
Posts: 497

2010 Range Rover Sport TDV8 HSE Stornoway Grey

Agree 6 mins is not normal for me either. Closer to the 1-2 mins on the front and a little longer on the rear.

My previous RRS was slow sometimes. I have a theory that if you are running a high load on an idling engine and the battery is not in tip top condition there might be a power management function that cuts power to the most hungary circuits. Otherwise there is no explanation as to why sometimes it was slow and others it was not.

Wed Jan 18 2012 10:58am

Stuart's the man

Member Since: 02 Jan 2012
Location: Glasgow
Posts: 35

front screen 2 minutes tops to clear

Sat Jan 28 2012 1:45pm

DrNick_B

Member Since: 03 Sep 2011
Location: Warwickshire
Posts: 3

2008 Range Rover Sport TDV8 HSE Bonatti Grey

Supacat wrote:
Agree 6 mins is not normal for me either. Closer to the 1-2 mins on the front and a little longer on the rear.

My previous RRS was slow sometimes. I have a theory that if you are running a high load on an idling engine and the battery is not in tip top condition there might be a power management function that cuts power to the most hungary circuits. Otherwise there is no explanation as to why sometimes it was slow and others it was not.

I reckon your theory is spot on!!!!

If I start my 58 plate RRS on a cold day and immediately switch on the heated front screen, it doesn't work!!

If I wait until a little puff of white smoke from under the front N/S tells me that the diesel engine heater has successfully started up and then switch on the heated front screen, it typically clears the screen in about a minute!

I've had the debate with JLR about battery and alternator performance on both this RRS and my previous one, but they don't go with out theory!!! lol

Thu Jan 24 2013 10:54pm

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