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Gearbox woes
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adamr
 


Member Since: 05 Jul 2023
Location: Sheffield
Posts: 4

United Kingdom 2009 Discovery 3 TDV6 XS Auto Bonatti GreyDiscovery 3
Gearbox woes

Hi all,

Had the dreaded 'transmission fault, limited gears available' 'special program disabled' fault flash the other day.

Had the codes read and they were the following:
P0730-00 - incorrect gear ratio
P0735-00 incorrect 5th ratio
P0729-00 incorrect 6th ratio
P0731-00 incorrect 1st ratio
P0736-00 incorrect reverse ratio

The car went into limp and couldn't clear by restarting. Had the codes cleared by a friend and I had 1 'transmission fault' error but no limp.
Now what I change between drive and reverse I can get the fault to appear.

About a year ago the E-clutch was replaced.

Ive had the earth strap checked and when I looked at the voltage whilst running (using a multimeter) it was 13.5-13.8.

Has this box catastrophically failed, or is the fact that they all appeared at once more indicative of an electrical fault?

I'm based in Sheffield so any suggestions for a specialist would be helpful. Gave strong money for it only 13 months ago and with it having gearbox work done I thought it might be ok.... rookie error.
  
Post #23747297th Aug 2024 6:12 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10640

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

With so many gear faults maybe worth checking the oil level.
It’s done with engine running.

Or maybe a solonoid fault that those gears rely on
  
Post #23747307th Aug 2024 6:17 pm
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loanrangie
 


Member Since: 18 Jun 2017
Location: Melbourne
Posts: 682

Australia 2008 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

Most of those can be caused by failing solenoids and or lack of fluid pressure.
  
Post #23747648th Aug 2024 12:58 am
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adamr
 


Member Since: 05 Jul 2023
Location: Sheffield
Posts: 4

United Kingdom 2009 Discovery 3 TDV6 XS Auto Bonatti GreyDiscovery 3

Had the solenoids replaced yesterday. Mechanic reported burnt oil and a lot of swarf and so wasn't hopeful that it had solved the problem. Previous ownder told me that the trans was rebuilt twice and the person that rebuilt it said it would outlive the car Laughing

Anyway today, when using the kick down on a hill the 'F' came back -so now I'm out of ideas.... Think it's time to send it for breaking? Don't fancy throwing more money at it.

Any thoughts as to what else it could be?
  
Post #23763351st Sep 2024 12:28 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10640

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

I would have thought the engine was quite valuable?

So don't get rid for less than £800 complete ?
  
Post #23763361st Sep 2024 12:45 pm
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Dave T
 


Member Since: 03 Jul 2009
Location: Glasgow
Posts: 6910

England 

£800 Shocked Shocked Shocked Shocked I paid a lot more than that from a scrappy in 2011 before everyone wanted one!!
 Joined the BMWX5 45e group
1994 Defender 90

2015 RRS Corris Grey/Black roof
2016 D4 Graphite Santorini Black
2012 D4 XS Orkney Grey
2005 D3 S Maya Gold

Convoy for Heroes 2011 
 
Post #23764954th Sep 2024 6:33 am
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loanrangie
 


Member Since: 18 Jun 2017
Location: Melbourne
Posts: 682

Australia 2008 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

adamr wrote:
Had the solenoids replaced yesterday. Mechanic reported burnt oil and a lot of swarf and so wasn't hopeful that it had solved the problem. Previous ownder told me that the trans was rebuilt twice and the person that rebuilt it said it would outlive the car Laughing

Anyway today, when using the kick down on a hill the 'F' came back -so now I'm out of ideas.... Think it's time to send it for breaking? Don't fancy throwing more money at it.

Any thoughts as to what else it could be?


Cant have been a good job on the rebuild or they skimped out, likely burnt friction rings or converter.
  
Post #23765775th Sep 2024 7:35 am
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Devon Z
 


Member Since: 14 Nov 2019
Location: Brixham Devon
Posts: 251

England 

Mine throws codes incorrect gear/fifth gear when towing the van, twice the other day on way down to Cornwall, faultless rest of the time been like it 4 years and I only tow once a year.

I really struggle with the cost of a rebuild, would love to but!!!!
 Steve

*2005 RR Sport 2.7tdv6 HSE. Current project.
*98 Volvo V70R FWD, owned 14 years, future project.
*99 BMW Z3 30k miles owned from new. 
 
Post #23766385th Sep 2024 5:44 pm
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Cheeko
 


Member Since: 05 Jul 2024
Location: Leeds
Posts: 228

United Kingdom 2009 LR3 TDV6 HSE Auto Santorini BlackLR3

Tell me about it I’ve just wrote a post asking for help with our lasses dads good while there good nightmare when faulty 😢
  
Post #23766495th Sep 2024 7:54 pm
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adamr
 


Member Since: 05 Jul 2023
Location: Sheffield
Posts: 4

United Kingdom 2009 Discovery 3 TDV6 XS Auto Bonatti GreyDiscovery 3

Been quoted between 1700 and 2500 + vat for a full rebuild from a reputable place. Problem is i'm so deep in now it's worth no where near what I've dropped on it.

Is it worth swapping the brake light switch just in case? Clutching at straws here
  
Post #237729013th Sep 2024 2:33 pm
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Pete K
 


Member Since: 15 Jan 2016
Location: GL
Posts: 10640

England 2005 Discovery 3 TDV6 HSE Auto Rimini RedDiscovery 3

Clutching at straws.

2500 seams going rate
  
Post #237729313th Sep 2024 3:10 pm
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