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niquelarondel
Member Since: 03 May 2021
Location: Genève
Posts: 36
  
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| switch mecatronic between a TDV6 and a V8 Transmission |
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Hello everyone,
I drive a 05 V8 and the tranny start to have trouble in reverse etc... I went to check it out and it need a repair or a swap.
A new one is expensive, therefore I was wondering if I could by a 2,7 TDV6 one and swap the mecatronic unit. Is it doable ? I mean, both transmission are 6HP26X the only difference will be the torque converter (which I will buy a new one) and the mecatronic unit.
If anyone used to ZF transmission could enlighten me, would be awesome thank you !
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 29th Jan 2023 3:45 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10363
 
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They aren’t very reliable second hand, so maybe see if you can get yours rebuilt locally ?
At a zf place
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| 29th Jan 2023 5:13 pm |
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niquelarondel
Member Since: 03 May 2021
Location: Genève
Posts: 36
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well I can get one super cheap, the idea was to get the cheap one rebuilt and then swap my mecatronic. I don't wanna stay without my car long. Need it for work. Wanted to swap the gearbox myself.
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| 29th Jan 2023 6:24 pm |
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Trailered Movements
Member Since: 16 Jan 2020
Location: East/West Sussex Coast Borders
Posts: 1198
  
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You can swop the mechatronic unit over, no need to change the entire box
I've recently done it, but was advised to get the unit from the same year car and same engine, then it will be just fit and play.
My unit came from an RRS, but was the same engine and year as my D4.
Dave 2011 Discovery 4 Commercial SDV6 (Gone)
2010 RRS TDV8 (Gone)
1980 OBLIC 4.0ltr Range Rover (went a long time ago)
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| 29th Jan 2023 6:51 pm |
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niquelarondel
Member Since: 03 May 2021
Location: Genève
Posts: 36
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well that's my problem, hard to find one from a V8 in europe. Ton's of them in the US. Hence my idea of swaping from a TDV6 one and replacing the mecatronic unit from the original one.
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| 29th Jan 2023 7:40 pm |
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Sidestick
Member Since: 22 Apr 2012
Location: Rome
Posts: 2288
 
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Mechatronic itself can be overhauled, it's a cheaper than swap to a new transmission and is a simple job.
check this out:
- Easy-Lift suspension module 4.0
- GoodWinch 9500 lb
- Full underbody protections
- Tree/Rock sidebars
- Prospeed roofrack & ladder
- Compressor guard
- Raised Air Intake
- Driving lights (2+4)
- 50 mm Waffle boards
- Altox Heater control
- Overland Rooftop Tent
- Rear seats entertainment
- Front & Rear camera
- GVIF
- Removable tow bar
- Cubby box fridge
- BFG KO2 265/65R17
- iidTool BT
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| 29th Jan 2023 9:05 pm |
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loanrangie
Member Since: 18 Jun 2017
Location: Melbourne
Posts: 600
 
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The mechatronic is the ECU for the trans and the valve body is the mechanical side with the solenoid valves, you can swap either the whole complete unit and then have the TCM flashed with your vib or you fit your mechatronic over to a donor valve body.
Would be better to keeps yours and fit a sonnax zip kit, new separator plate and new solenoids.
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| 30th Jan 2023 1:06 am |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10363
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I suspect the OP thinks the gearbox is the fault, not the megatronics.
Keeping the megatronics with the car as it’s vin coded
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| 30th Jan 2023 9:36 am |
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loanrangie
Member Since: 18 Jun 2017
Location: Melbourne
Posts: 600
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Yes so he will need to swap the mechatronic onto the replacement trans's valvebody or swap his complete valve body into the trans.
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| 30th Jan 2023 10:03 am |
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niquelarondel
Member Since: 03 May 2021
Location: Genève
Posts: 36
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thank you Sidestick, i've seen this video, very interesting indeed.
Yes my plan was to rebuild my mecatronic/valve body or have it rebuilt by a pro. Problem is the time. I'm pretty sure my mecatronic is not the problem, when I had my gearbox checked before considering swaping it the ZF specialist said it was as o-ring problem/gasket in one of the planetary. Nothing related to mecatronic. But after 320'000km I think its time to refresh all this mess down there.
Doing it myself, I would consider it if I can get a super cheap 6hp26x in a good state that I would have rebuilt by a pro, without the mecatronic unit, and then swap my rebuilt by myself mecatronic unit onto it.
And also keep my valve body with my mecatronic. I absolutely wanna avoid reprogramming the mecatronic, don't have the special took and don't wanna pay a LR dealer for doing it wrong...
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| 30th Jan 2023 8:11 pm |
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