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rattly

Member Since: 15 Oct 2016
Location: Cotswolds
Posts: 42

2016 Range Rover Autobiography SDV8 Santorini Black

L405 Poor heater

Hi all,

Bought my current Autobiography in the summer, now the weather changed i`m realising my heater is useless.
Done thousands of miles in and engine temp is fine.

Front fan control seems to work (front blower sounds a bit stifled!, rear blower sounds normal), pretty well no air flow from the vents, and my legs are always freezing!!

Only code in is for Auxiliary heater water pump- open circuit, B12A6-13

All help welcomed or i`ll re-taxing my old Sport!!

Thx in advance

10th Oct 2024 3:18pm

Haylands

Member Since: 04 Mar 2014
Location: East Yorkshire
Posts: 8529

2014 Range Rover Autobiography SDV8 Loire Blue

You could try cleaning this, it's the cabin temp sensor

Click image to enlarge

see how to reach it in this thread, it's very easy and a free check....

https://www.fullfatrr.com/forum/topic69334.html? Pete
__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold
2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold
-Click for Project Fatty off roader-

10th Oct 2024 8:30pm

hoppy_70

Member Since: 04 Apr 2010
Location: Peoples Republic of Mancunia!
Posts: 869

2018 Range Rover Autobiography 2.0 PHEV Loire Blue

Does it have the fuel burning heater? If it does there’s a diverter solenoid that stops working (oem item is Bosch and about £120 if you don’t buy from dealer. Was a bit of a pain to get out but warm heater again for me. My Previous RR's!
2018 P400e Autobiography
2008 TDV8 Vogue
2006 TD6 Vogue
2007 TDV8 Vogue
2007 RRS (I know, it doesn't count!)
2005 4.4 Vogue on LPG
2005 TD6 Vogue
2003 4.4 Vogue
2001 4.6 HSE
2000 2.5 DHSE
1999 4.6 HSE
1997 4.6 HSE on LPG
1995 2.5 DSE
1989 3.9 EFI classic
1988 3.5 EFI classic

10th Oct 2024 8:32pm

rattly

Member Since: 15 Oct 2016
Location: Cotswolds
Posts: 42

Thx both,
Just cleaned the cab sensor and I seem to have airflow now!
Will give it a run later and see how warm it gets inside..

I’ll keep this thread updated!

12th Oct 2024 1:20pm

rattly

Member Since: 15 Oct 2016
Location: Cotswolds
Posts: 42

Definitely have a better blower motor now, not as good as i`d expect tbh, but still very poor heat.
I`ll try and get under it and see if have the fuel burning heater, i have a remote for a pre heater so would guess i have ??

16th Oct 2024 4:00pm

hoppy_70

Member Since: 04 Apr 2010
Location: Peoples Republic of Mancunia!
Posts: 869

Yes if you have the FBH remote then it’ll be fitted. It’s the left side of the engine bay right at the back. This is the solenoid I fitted (diverter valve), much warmer now! It sticks apparently stopping hot water flow through the matrix.

https://www.ebay.co.uk/itm/116225611658?mk...media=COPY My Previous RR's!
2018 P400e Autobiography
2008 TDV8 Vogue
2006 TD6 Vogue
2007 TDV8 Vogue
2007 RRS (I know, it doesn't count!)
2005 4.4 Vogue on LPG
2005 TD6 Vogue
2003 4.4 Vogue
2001 4.6 HSE
2000 2.5 DHSE
1999 4.6 HSE
1997 4.6 HSE on LPG
1995 2.5 DSE
1989 3.9 EFI classic
1988 3.5 EFI classic

16th Oct 2024 7:26pm

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