Advertise on fullfatrr.com »

Home > Technical (L322) > ZF8speed frustration
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3203

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey
ZF8speed frustration

Can’t fault this box in most ways. Smooth seamless changes, good ratios for every speed, fast near instant changes via the paddles. I just find it holds gears / revs too high going up hills and am forever using the command shift to keep the revs down. If I was wanting to accelerate hard up a hill or was towing this would be fine but when you are just wanting to make gentle effortless ‘wafting’ progress like it does on the flat it just makes it feel like hard work. The engine has plenty of torque and doesn’t need to rev up to near 2k rpm. I’m running 255/55 R20 tyres so these make for an effective higher final drive ratio which may not help. It’s been serviced ( not megaflushed) and others have also reported this behaviour. Any remap / software updates available? 2012 TDV8 Vogue (L322)

Post #627874 6th Apr 2022 6:16am
View user's profile Send private message View poster's gallery Reply with quote
AJGalaxy2012



Member Since: 11 Jun 2018
Location: Gainsborough
Posts: 1464

United Kingdom 2012 Range Rover Vogue SE 4.4 V8 Bonatti Grey

Its not stuck in 'sport' mode by any chance? does switching it to sport mode make any difference?

My L322 with 2 tonne caravan on the back was perfectly happy changing into higher gears at 12 to 1500 rpm, 8th gear at 65mph with the caravan on the back going up hill, sounds like something isnt quite right.

On my Touareg the MAF had a major input to the gearbox performance, I'm not sure what sensors JLR use to calculate engine load etc. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

Post #627876 6th Apr 2022 6:27am
View user's profile Send private message View poster's gallery Reply with quote
GGDR



Member Since: 26 Nov 2016
Location: London
Posts: 3542

United Kingdom 2011 Range Rover Vogue SE TDV8 Stornoway Grey

If you have an IID you can reset the 'learned' shift behaviours

. Cheers, Greg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2011 Vogue SE 4.4 with lots of toys in Stornaway

Post #627877 6th Apr 2022 6:29am
View user's profile Send private message View poster's gallery Reply with quote
JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3203

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

It's definitely not stuck in sport mode. AFAIK the GAP reset function removes all the adaptation values for wear and age that influence the smoothness of the changes rather than the programming of the change vs load/speed etc? If anybody has done this I'd like to hear but I'm not tempted on a box that changes smoothly. 2012 TDV8 Vogue (L322)

Post #627882 6th Apr 2022 7:12am
View user's profile Send private message View poster's gallery Reply with quote
GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2475

Australia 2012 Range Rover Autobiography TDV8 Bournville

A person in this part of the world is offering remapping for the 8-speed to go hand in hand with a 4.4 TDV8 remap. I'm very interested but would need to test drive a vehicle that has been done. I too would like the gearbox to make better use of the engine's torque but I wouldn't want to loose the way that mine ambles along tracks at around 1000 rpm at 40-60 kph.

Post #627886 6th Apr 2022 7:52am
View user's profile Send private message View poster's gallery Reply with quote
JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3203

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

Mine ambles along just fine on the flat. 2012 TDV8 Vogue (L322)

Post #627889 6th Apr 2022 8:05am
View user's profile Send private message View poster's gallery Reply with quote
Dolphinboy



Member Since: 07 Dec 2009
Location: Bristol
Posts: 3141

United Kingdom 2015 Range Rover Autobiography SDV8 Baltic Blue

@Jaygee.

Mone is exactly the same, especially between 2nd and third. I often have to manually get it down manually.

Post #627890 6th Apr 2022 8:38am
View user's profile Send private message View poster's gallery Reply with quote
V8 Bob



Member Since: 15 Mar 2018
Location: Cumbria
Posts: 357

United Kingdom 2012 Range Rover Westminster TDV8 Ipanema Sand

S alluded to above the gearbox learns the drivers habits. If you regularly use the paddles to change gear they do tend to hold the gears longer as if in sport mode.

Try leaving it to its self and see if it starts to change at lower revs. 2012 tdv8 Westminster arrived Jan 19 gone Dec 23

200 TDi discovery bobtail gone
RR classic v8 bobtail gone
300 tdi Discovery 3 dr gone

Post #627893 6th Apr 2022 9:01am
View user's profile Send private message View poster's gallery Reply with quote
JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3203

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

I’ve only just started using the paddles after putting up with it since September. I’d have thought also that using the paddles this way would teach the box to follow my override rather than the other way round? 2012 TDV8 Vogue (L322)

Post #627896 6th Apr 2022 9:07am
View user's profile Send private message View poster's gallery Reply with quote
Dolphinboy



Member Since: 07 Dec 2009
Location: Bristol
Posts: 3141

United Kingdom 2015 Range Rover Autobiography SDV8 Baltic Blue

@Jaygee. I'm the same as you. It did it from the very start when I bought in it 2017. I started to use the paddles as required when I noticed it holding on to gears and thought it would learn my style too. Nothing changed!

Post #627937 6th Apr 2022 1:27pm
View user's profile Send private message View poster's gallery Reply with quote
coopss



Member Since: 21 Apr 2018
Location: Hampshire
Posts: 281

I found the 8speed was very irritating when going down steep hills. Up hills it would down shift (usually not irritating enough to intervene with paddles) but going down steep hills it really Censored me off. Used drop down and rev so much I had to intervene via paddles. 1995 4.6 v8, green/tan (long gone)
2005 4.8iS X5, blue/black
2011 4.4 tdv8, black/black (gone)
2003 3.0d X5, Oxford green/black/manual
2021 p575 SVR, BR green/vintage tan

Post #628451 12th Apr 2022 2:20pm
View user's profile Send private message View poster's gallery Reply with quote
JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3203

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

Mine holds the revs going down steep hills as well and I think it's a normal feature with these ZF boxes as my Audi Allroad did it as well but I don't mind it as much as the uphill rev holding. 2012 TDV8 Vogue (L322)

Post #628455 12th Apr 2022 2:37pm
View user's profile Send private message View poster's gallery Reply with quote
Dolphinboy



Member Since: 07 Dec 2009
Location: Bristol
Posts: 3141

United Kingdom 2015 Range Rover Autobiography SDV8 Baltic Blue

It’s the brake assist cutting in

Post #628476 12th Apr 2022 5:40pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
fullfatrr.com RSS Feed - All Forums


Switch to Mobile site