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Tizzy



Member Since: 07 Aug 2021
Location: Leicestershire
Posts: 15

United Kingdom 2015 Range Rover Autobiography SDV6 Santorini Black
A/C fans and rear diff issue?

Hi All

New member but long term RR owner, but this is my first L405, having had various Sports and an SVR in the past. These questions relate to a 2015 3.0TDV6 Autobiography with 57k and FSH

1. A/C fans cutting out. When working hard in the recent hot weather, for no reason the AC fans in the front occasionally just cut out. The rear vents above the rear doors stay on (well one does, the other doesn’t seem to work). Turning climate off and then on again resets it and the fans restart every time. It only happens when the fans are running at high speed on the Auto setting. Any ideas? The AC button remains illuminated throughout and the vehicle has the 4 zone climate with the separate rads etc in the boot.

2. Strange feeling best described as a bouncy hopping from the rear left wheel when pulling out of junctions most noticeable when turning right. Reading through posts on here I’m thinking this might be diff related and probably best to start with getting the diff oil changed? It has FSH all with JLR dealers, but I’m not sure they routinely change diff oils at this kind of mileage or even try to make out that they’re sealed for life!

Any and all help very much appreciated.

Many thanks

Chris

Post #603893 16th Aug 2021 7:27am
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diesel Dave



Member Since: 14 Aug 2015
Location: Stockport
Posts: 455

England 2019 Range Rover Autobiography SDV8 Santorini Black

Try changing your transfer box oil, at least twice, there is a known issue with juddering while turning, even at relatively low mileage, off memory the service life for T/F case oil is 60K so your almost there anyway. Ive done a few now where its taken several oil changes to cure the issue.

Post #603957 16th Aug 2021 8:40pm
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stan
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Member Since: 13 Jul 2010
Location: a moderate moderated moderator moderating moderately in moderation
Posts: 35272

United Kingdom 

could your problem be this,

https://www.fullfatrr.com/forum/topic37809...=fuel+tank ... - .- -.




Y. O. L. O.
.

Post #603958 16th Aug 2021 8:47pm
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Tizzy



Member Since: 07 Aug 2021
Location: Leicestershire
Posts: 15

United Kingdom 2015 Range Rover Autobiography SDV6 Santorini Black

Thanks for the quick responses, much appreciated!

I thought it was likely diff or transfer box oil, so am having both diffs and transfer box oil changed by my local Indie next month 🤞. It’s definitely not related to the fuel tank as the sensation still happens with a full tank.

Anyone any thoughts on the strange fan cutting out issue?

Cheers

Chris 2015 3.0 TDV6 Autobiography in Santorini Black with black-pack
2020 Evoque P300 HSE Dynamic
Past RR’s: 2018 SVR, 2016 Sport Autobiography SDV8 and an SDV6.

Post #603983 17th Aug 2021 9:41am
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marsie



Member Since: 30 Apr 2010
Location: sheffield
Posts: 916

England 2014 Range Rover Vogue SE SDV8 Loire Blue

What DieselDave said ^^

I had this with my D4. Felt like a diff was locked and the wheel was skipping/bumping when pulling out of a junction with some steering lock on. Mine was worse on right hand turns

Changed transfer box oil once and it improved, did it again after a couple of weeks and it cured it Thumbs Up Paul

2014 Range Rover vogue se 4.4sdv8 Loire Blue
1992 Range Rover Vogue LSE 4.2 Ardennes green

Post #603988 17th Aug 2021 10:20am
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