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Thunk when coasting
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Markmein
 


Member Since: 07 Jul 2012
Location: Chester
Posts: 181

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4
Thunk when coasting

Just trying to find if this is a usuall D3 thing, when I lift off the acc pedal and allow the car to freewheel at low(ish) speeds the auto box seems to drop into neutral, this is ok but I have to very gently ease back onto the throttle to avoid a thump as power it taken back up, it's a bit like the classic RR used to do when going from drive to reverse.
Is this usuall or do I need to start saving?? Big Cry
It's just a pain when driving in slow moving traffic.
  
Post #11992698th Dec 2013 1:32 am
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anglefire
 


Member Since: 09 Mar 2010
Location: In the Club House
Posts: 4180

England 

It will drop out of lock (Or partial lock) if the speed is low. But it shouldn't thump particularly.

First thing to try is to reset the transfer box clutches and the gear box adaptations - MSV2 will do it.
 Mark.
2006, D3 SE Auto - gone but not forgotten.
2014 BMW 530d M Sport Tourer.
1977 Triumph Spitfire 1500

_________________________________________________
Disco Picture Website Here 
 
Post #11992898th Dec 2013 7:41 am
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Dave^
 


Member Since: 23 Jun 2013
Location: West Yorks
Posts: 706


Speak to Flack, he and geoff sorted mine... Thumbs Up
 flickr  
Post #11993168th Dec 2013 10:38 am
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20793

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

Reset gearbox adaptions, recalibrate transfer box clutches, and some new software in the gearbox should see it good as new Thumbs Up
 My D3 Build Thread

TDV8 Retrofit Build Thread 
 
Post #11996228th Dec 2013 11:07 pm
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wee-man
 


Member Since: 19 Nov 2012
Location: IP14 4PP
Posts: 389

United Kingdom 
Diff

Mine is in the stealers tomorrow for a suspect rear diff, software updates no good. Recalibration no good. Mine is ok when cold but after 5 mins I get a thump when it changes gear, especially in slow traffic or at traffic lights. .
  
Post #11996258th Dec 2013 11:12 pm
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geoff.
 


Member Since: 24 Jan 2010
Location: West kent
Posts: 8531

England 

After extensive testing with Pete bell and his sdd system I now have the correct files for 2005/6/7 bump fix Thumbs Up
  
Post #11996689th Dec 2013 12:22 am
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wee-man
 


Member Since: 19 Nov 2012
Location: IP14 4PP
Posts: 389

United Kingdom 
Southampton

Hi Geoff

If this latest visit fails, can you let me know when you are around next to try the software fix, it looks like it's getting worse and on the last service the rear diff oil was contaminated with metal. It looks like it might be mechanical but will find out later today.

Cheers,

Gary
  
Post #11997199th Dec 2013 10:12 am
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Beretta
 


Member Since: 11 Oct 2012
Location: Rochdale
Posts: 1180

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

this is exactly the same problem that I am now getting...its fine under load, fine when flooring it..

I've found that its worse in traffic and in manual mode, take my feet off everything and put it into 1st, let the car get moving and push it into 2nd and I always get the 'thud'
  
Post #11997269th Dec 2013 10:36 am
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geoff.
 


Member Since: 24 Jan 2010
Location: West kent
Posts: 8531

England 

steve

i,m going to have a word with wiggs see if he will apply latest software for me keep an eye open for the pm Thumbs Up
  
Post #11997289th Dec 2013 10:40 am
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Beretta
 


Member Since: 11 Oct 2012
Location: Rochdale
Posts: 1180

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

As always Geoff Bow down Bow down
  
Post #11997389th Dec 2013 11:04 am
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Syd
 


Member Since: 02 Nov 2008
Location: Spain & Hampshire UK
Posts: 860

United Kingdom 

This sounds similar
http://www.rrsport.co.uk/forum/topic33727.html
 In Spain - 2018 F Pace - Down and out's Velar
In UK - Dare not say on this Forum
Gone - Lots of Lode Lane vehicles.
- Beta User 
 
Post #11998119th Dec 2013 2:00 pm
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Markmein
 


Member Since: 07 Jul 2012
Location: Chester
Posts: 181

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4

Flack did a gearbox reset last time when he was over but I'm not sure if we did the calibration and/or software flash, hopefully this will all be possible on the new Nanocom?
  
Post #11998429th Dec 2013 3:39 pm
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6290

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Mark yes it will..

Flack Thumbs Up
  
Post #11998439th Dec 2013 3:46 pm
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Markmein
 


Member Since: 07 Jul 2012
Location: Chester
Posts: 181

United Kingdom 2014 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4

Ahh well i guess its a 'justified' expense now then Mick (early christmas present) Rolling with laughter
  
Post #11998489th Dec 2013 4:03 pm
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Beretta
 


Member Since: 11 Oct 2012
Location: Rochdale
Posts: 1180

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

After a visit to see Wiggs this morning, he applied Geoffs 'magic' file, and all I can say is WOW!

I got the box flushed a few months ago by Geoff and that made an improvement, but with this new update it's amazingly smooth. No more thuds, no clunks! No idea how it's worked but it's made such a difference.

Loving the Disco again!
  
Post #120252214th Dec 2013 7:34 pm
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