Advertise on fullfatrr.com »

Home > Technical (L322) > Gearbox Remap ZF8?
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
JW911



Member Since: 09 Dec 2008
Location: Hampshire, UK
Posts: 259

United Kingdom 
Gearbox Remap ZF8?

I've a couple of previous posts regarding the quality of the gear change at higher engine speeds. In short, fast (including kick down) acceleration seems to confuse the gearbox in that in D or S, it drops a gear (or two) but doesn't engage that gear quick enough, resulting in the engine spooling up and then the gear slamming into engagement. Gearbox has 85000 miles with an oil change around 20000 miles ago. All software is up to date as of last week.

I've found an interim fix, which is to leave the transmission in snow and gravel mode all the time. It now works perfectly in all respects so it's clearly a software issue.

Wondering if it's possible to remap the normal gear change.... 2021 3.0 P400 Vogue
2012 4.4 TDV8 Westminster - gone!
2007 3.6 TDV8 Vogue - gone!
2003 4.4 V8 HSE (LPG) - gone!
2018 F-Pace 25t Portfolio
1974 LR Series III Lightweight FFR
2014 BMW 640i Gran Coupe

Post #705116 22nd Nov 2024 9:57am
View user's profile Send private message View poster's gallery Reply with quote
rvbush



Member Since: 08 Jan 2016
Location: Leamington Spa
Posts: 545

United Kingdom 2011 Range Rover Vogue TDV8 Stornoway Grey

I will be watching any responses with interest as mine does something similar, although I haven't tried putting it in any other mode (never thought of it).

Mine seems to be re-learning all by itself though, albeit slowly. My indy reset the gearbox adaptions to clear a fault, which worked but left an issue whereby if you coasted a bit (eg entering a roundabout where a gap suddenly opens up) then needed 'spirited' acceleration the ecu had a fart, couldn't work out what gear to be in then slammed into engagement with an almighty thump. This all happened about 1200 miles ago, however, it's now much better and only does it occasionally and nowhere near as violently. In general all gear changes are very smooth it's just this occasional blip.

Car has 118,000 miles and gearbox recently (before the fault showed) given a flush and new (correct) oil put in. Drives:
2010 FFRR TdV8 Vogue - Stornoway Grey
2010 FFRR TdV8 Vogue SE - Zermatt Silver
1998 BMW E36 M3 GTII

Post #705121 22nd Nov 2024 12:17pm
View user's profile Send private message View poster's gallery Reply with quote
JW911



Member Since: 09 Dec 2008
Location: Hampshire, UK
Posts: 259

United Kingdom 

Sounds similar.

I’ve put a couple of hundred miles on it in gravel and snow mode. I thought I’d try it in normal this morning and it seems to have sorted it. Most bizarre. Hopefully I haven’t spoken too soon. 2021 3.0 P400 Vogue
2012 4.4 TDV8 Westminster - gone!
2007 3.6 TDV8 Vogue - gone!
2003 4.4 V8 HSE (LPG) - gone!
2018 F-Pace 25t Portfolio
1974 LR Series III Lightweight FFR
2014 BMW 640i Gran Coupe

Post #705128 22nd Nov 2024 1:21pm
View user's profile Send private message View poster's gallery Reply with quote
Haylands



Member Since: 04 Mar 2014
Location: East Yorkshire
Posts: 8500

England 2014 Range Rover Autobiography SDV8 Loire Blue

Someone is doing it in the US but it's not cheap... Shocked

https://www.velocityap.com/product/bmw-zf8...KbANr9099R 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-

Post #705134 22nd Nov 2024 2:25pm
View user's profile Send private message View poster's gallery Reply with quote
rvbush



Member Since: 08 Jan 2016
Location: Leamington Spa
Posts: 545

United Kingdom 2011 Range Rover Vogue TDV8 Stornoway Grey

I can put up with it for that price!! I'll try the snow and ice mode and see what happens. Drives:
2010 FFRR TdV8 Vogue - Stornoway Grey
2010 FFRR TdV8 Vogue SE - Zermatt Silver
1998 BMW E36 M3 GTII

Post #705141 22nd Nov 2024 2:59pm
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 + 1 Hour

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 © 2006-2025 Futuranet Ltd & Martin Lewis
fullfatrr.com RSS Feed - All Forums


Switch to Mobile site