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DISCO3.CO.UK > Technical (D3)

auto gear box replacement
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monty1
 


Member Since: 08 Feb 2016
Location: middlesbrough
Posts: 316

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3
auto gear box replacement

hi all,if i replace my gear box with another will i need a new torque converter fitting, not sure what will need to be done

tia  
Post #233096922nd Mar 2023 9:08 pm
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aja4x4
 


Member Since: 14 Apr 2019
Location: Westbury
Posts: 2463

United Kingdom 2005 Discovery 3 TDV6 SE Auto Zambezi SilverDiscovery 3

Yes i would replace it Andrew

D3 2.7tdv6 2005
D4 3.0 SDV6 Commercial died and gone to LR heaven
D5 3.0 SDV6 HSE  
Post #233097122nd Mar 2023 9:45 pm
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loanrangie
 


Member Since: 18 Jun 2017
Location: Melbourne
Posts: 698

Australia 2008 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

If you are fitting a used trans then you will need to either reprogram the mechatronic or swap your TCM from the valve body into the replacement trans, new or rebuilt TC is advisable.  
Post #233097422nd Mar 2023 11:00 pm
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monty1
 


Member Since: 08 Feb 2016
Location: middlesbrough
Posts: 316

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

thanks for the advice  
Post #233098723rd Mar 2023 6:59 am
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D3faf
 


Member Since: 10 Aug 2022
Location: Devizes
Posts: 25

United Kingdom 

loanrangie wrote:
If you are fitting a used trans then you will need to either reprogram the mechatronic or swap your TCM from the valve body into the replacement trans, new or rebuilt TC is advisable.


Interesting. When I fitted a second hand gearbox to my 2007 D3 I didn't do any coding or swapping or parts. It all worked fine.

Why would you need to code or swap parts? Just curious Smile  
Post #233103323rd Mar 2023 3:40 pm
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loanrangie
 


Member Since: 18 Jun 2017
Location: Melbourne
Posts: 698

Australia 2008 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

It shouldn't work as the TCM needs to be programmed to the vehicle or you re-use your TCM.  
Post #233107423rd Mar 2023 9:51 pm
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D3faf
 


Member Since: 10 Aug 2022
Location: Devizes
Posts: 25

United Kingdom 

I definitely haven't had to do anything like that and it all works lovely. Also done over 12000 miles since.

Odd.  
Post #233107623rd Mar 2023 10:00 pm
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motorworks
 


Member Since: 14 Nov 2019
Location: Usk
Posts: 412

United Kingdom 2005 Discovery 3 TDV6 HSE Auto Tonga GreenDiscovery 3

Manual transmission? Chris  
Post #233118924th Mar 2023 3:29 pm
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Trailered Movements
 


Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1200

United Kingdom 2011 Discovery 4 3.0 SDV6 Commercial Auto Sumatra BlackDiscovery 4

If you fit a gearbox from the same year, and with the same engine, it will work without any coding.

I changed just the megatronic unit (which is the bit that would be relevant to programming) from a RRS to my D4 and it was OK straight out of the box.


Dave 2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago)  
Post #233119024th Mar 2023 3:36 pm
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D3faf
 


Member Since: 10 Aug 2022
Location: Devizes
Posts: 25

United Kingdom 

Auto Box was from an earlier truck than mine. Think 05.

Haven't coded anything since fitting it in my mates barn.

All working fine. Guess I've been lucky Smile

I would recommend a TC replacement when swapping the box. I didn't do mine and have been lucky but the work involved to remove it all again if it goes wrong I would definitely fit a new TC next time.  
Post #233119824th Mar 2023 4:56 pm
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