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Auto box problem!!!!
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v8bobtail
 


Member Since: 11 Apr 2009
Location: Wisbech cambs
Posts: 111

England 2005 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3
Auto box problem!!!!

Evening all. My wife has just returned home and has said that the gearbox won't change gear! Sure enough I took it out for a spin and it won't change up in auto. It will change down and will change manually ok. She said when it first did it park brake fault and gearbox fault came up on the dash and it wouldn't do anything so she turned off and restarted it, no faults but still not changing gear in auto!!!
Any ideas?????

Kind regards.
  
Post #11839347th Nov 2013 7:21 pm
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BLFarrar
 


Member Since: 02 Aug 2006
Location: Deepest, Dankest, Darkest, Dingiest......Le Halifax, West Yorkshire...with strong links to Ireland
Posts: 6222

France 2006 Discovery 3 TDV6 HSE Auto Lugano TealDiscovery 3
Suggest...

it may be the usual malady with a D3...the linkage...
but first before anyone on here can assist:
How old is your D3 ?
How long have you had it ?
it is otherwise in "good nick" ?
Has the situation deteriorated from normal working to where it is now ?
Has the D3 got a warranty ?
Do you do your own repairs, do you use a dealer, have you got a local Indie (independent repairer) ? (realise your on here asking so it won't be the fist...but are you handy with basic tools & instructions ?

....a starting point
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Post #11839577th Nov 2013 7:45 pm
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v8bobtail
 


Member Since: 11 Apr 2009
Location: Wisbech cambs
Posts: 111

England 2005 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

I changed the linkage in the spring.
Disco is an 05 with 82k on clock.
Had it for 4 1/2 years.
It's no in bad knick.
Dealer serviced.
Do most repairs myself.
It has done it before but cleared its self.
She has just been out again and said the hdc light came on, the suspension said it was going to lower, brake fault, traction control. I think otherwise known as the "Christmas tree"!!!!!
  
Post #11839967th Nov 2013 8:34 pm
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geoff.
 


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

England 

have you changed the brake light switch Question
  
Post #11840037th Nov 2013 8:36 pm
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Gareth
Site Moderator 


Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26761

United Kingdom 

Sounds like it needs a fault code reader plugging in. Otherwise we are all guessing.
  
Post #11840077th Nov 2013 8:39 pm
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v8bobtail
 


Member Since: 11 Apr 2009
Location: Wisbech cambs
Posts: 111

England 2005 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

geoff. wrote:
have you changed the brake light switch Question


No, how would that effect it?
  
Post #11840107th Nov 2013 8:41 pm
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v8bobtail
 


Member Since: 11 Apr 2009
Location: Wisbech cambs
Posts: 111

England 2005 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

Gareth wrote:
Sounds like it needs a fault code reader plugging in. Otherwise we are all guessing.


Know anybody local that's got one?
I just took it out again, no lights on dash, it will change up but not until you get to 4500rpm!!! Surprised
  
Post #11840137th Nov 2013 8:44 pm
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DSL
Keeper of the wheelie bin 


Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73007

Ukraine 

Gearbox needing reset?
   
Post #11840147th Nov 2013 8:46 pm
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jobster
 


Member Since: 08 Jul 2012
Location: Hilversum
Posts: 591

Netherlands 2009 Discovery 3 TDV6 SE Auto Unknown ColourDiscovery 3

would start with faultcode reader or brake-light switch whatever is readily available soon.
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Post #11840287th Nov 2013 9:13 pm
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RDR
 


Member Since: 24 Mar 2013
Location: Derbyshire
Posts: 2260

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Hi

Check your brake light bulbs, I had this on a previous D3. If they have blown and the filament is shorting the car thinks your braking and will not change up a gear automatically but will manually.
  
Post #11840817th Nov 2013 10:24 pm
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will247
 


Member Since: 05 Jan 2013
Location: York
Posts: 709

United Kingdom 2015 Discovery 4 3.0 SDV6 Commercial XS Auto Santorini BlackDiscovery 4

I'd put it on charge overnight and monitor your battery voltage before starting, just after starting and just after stopping and report back to here.

If I've left mine a few days and or left the interior lights on etc I get a full collection of HDC, special programs and park brake faults.

Battery voltage before starting should be around 12.5 volts. After starting around 13.8 and after stopping around 13.0

Brake light switch and bulbs although not related to the fault directly seem to make the computermebob go a bit lala and mess things up. Don't think anyone knows why but worth looking in to. Brake light switch is less than £15.00 and easy to do.
 26 and on the 4th LR..
Series 2a 1963 88'' 2.25 Derv as original with Galv chassis
Disco 1 1996 V8 on LPG (sold now)
Disco 3 2005 TDV6 S (sold now)
Disco 4 MY15 XS Commercial
 
 
Post #11840907th Nov 2013 10:45 pm
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v8bobtail
 


Member Since: 11 Apr 2009
Location: Wisbech cambs
Posts: 111

England 2005 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

RDR wrote:
Hi

Check your brake light bulbs, I had this on a previous D3. If they have blown and the filament is shorting the car thinks your braking and will not change up a gear automatically but will manually.


Thinking about it when I followed her last week I thought she had a brake light out! I'll check that tomorrow first I think.
It may sound very strange and I don't know how it could but years ago she was moaning that her mpg had dropped a lot and then I noticed she had a brake light out so changed it and a few days later mpg back to normal!!!! Shocked
  
Post #11840947th Nov 2013 10:51 pm
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will247
 


Member Since: 05 Jan 2013
Location: York
Posts: 709

United Kingdom 2015 Discovery 4 3.0 SDV6 Commercial XS Auto Santorini BlackDiscovery 4

Use decent quality replacement bulbs - worth every penny!
 26 and on the 4th LR..
Series 2a 1963 88'' 2.25 Derv as original with Galv chassis
Disco 1 1996 V8 on LPG (sold now)
Disco 3 2005 TDV6 S (sold now)
Disco 4 MY15 XS Commercial
 
 
Post #11840957th Nov 2013 10:52 pm
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v8bobtail
 


Member Since: 11 Apr 2009
Location: Wisbech cambs
Posts: 111

England 2005 Discovery 3 TDV6 SE Auto Buckingham BlueDiscovery 3

Was thinking of an LED conversion!! Razz
  
Post #11840967th Nov 2013 10:54 pm
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RDR
 


Member Since: 24 Mar 2013
Location: Derbyshire
Posts: 2260

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

When checking tomorrow you may find you don't have the problem if it's daylight. Turn on your lights and this may reintroduce the fault. If the broken filaments shorting the side light circuit with the brake circuit inside the bulb then when the side lights on it sends power to the brake circuit and the auto box thinks your trying to slow and will not shift up automatically.

Took me ages to figure it out on mine as it seemed completely random but it was the auto lights adding to the fun.
  
Post #11841037th Nov 2013 11:13 pm
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