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Gear box stuck in drive
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6403

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

Have you checked wireing loom under the console for damage perhabs something aint as it should be there not sending proper signal to the knob ?
  
Post #19711706th Aug 2018 11:03 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8227

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Yes, checked everything in the centre tunnel, all seems good, the loom just disappears into oblivion after that, the drawings I have show 3 connectors before the loom reaches Transmission Control module, but I can't find them or the module to check.
I can now get underneath but still cannot see anything wrong, in the selector mechanism is a small 12v solenoid that unlocks the rotary knob, I am thinking of putting 12v into it with a fuse to check it isn't the solenoid that has failed, if it has it will mean it needs a new full rotary selector as they are classed as a none serviceable item.
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #19711856th Aug 2018 12:10 pm
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6403

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

Fook new is around 400 quid

foud a few pre-owned cheapest is this one: https://www.ebay.co.uk/itm/253738544904
also a few more here: https://picclick.co.uk/Land-Rover-Discover...15288.html

good luck with troubleshooting
G
  
Post #19711876th Aug 2018 12:16 pm
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philm
 


Member Since: 02 Oct 2016
Location: Manchester
Posts: 732

England 

Wasn't this reported on discovery3.co.uk.
Diode failure in the rotary unit.
 L633 Defender
Range Rover Velar-gone
Discovery 4 Landmark-gone
Gap IID Tool 
 
Post #19711896th Aug 2018 12:24 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8227

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

Never thought to look on Ebag for one, I am not sure that is the problem though, but it's got to be worth £35 to find out. Good spot Thumbs Up
I have done a slight mod to get me back on the road, not up to my usual standard but I am mobile again.
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #19712876th Aug 2018 4:51 pm
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carroll493d
 


Member Since: 27 Jun 2017
Location: Alderton
Posts: 235

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto BournvilleDiscovery 4

Excuse if you've tried it, but isn't there an interlock between the brakes and the gear selector i.e. you have to press the footbrake to select drive from park and vice versa. If the physical interlock wont come out you'll not be able to turn it. Alas I don't know how you'd test it.
  
Post #19712996th Aug 2018 6:00 pm
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bobgolden
 


Member Since: 15 Oct 2010
Location: South Yorkshire
Posts: 907

United Kingdom 2011 Discovery 4 3.0 SDV6 HSE Auto Nara BronzeDiscovery 4

This was a known fault with the first lot of XFs. Had mine lock up while it was on the road not very well,parked on bin day ! The original fix was a new circuit board but it was subsequently found that a resistor or diode was the cause and was a fairly easy fix for the JLR field guys.
 2010 MX-5 2.0 Sport Tech PRHT
2019 Suzuki Vitara AllGrip

Gone BMW X5 xDrive 30d M Sport (F15)
Gone Disco 4 HSE SD V6
Gone 2008 Jaguar XF 2.7TD Premium Luxury 
 
Post #19713066th Aug 2018 6:57 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8227

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

carroll493d wrote:
Excuse if you've tried it, but isn't there an interlock between the brakes and the gear selector i.e. you have to press the footbrake to select drive from park and vice versa. If the physical interlock wont come out you'll not be able to turn it. Alas I don't know how you'd test it.

It is the interlock that is the problem.
Not quite, if you select park while moving you will go through the windscreen, Laughing
 It can when others can't,
It will when others won't,
It goes where others don't. 


Last edited by M3DPO on 7th Aug 2018 7:58 am. Edited 1 time in total 
Post #19713406th Aug 2018 8:55 pm
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carroll493d
 


Member Since: 27 Jun 2017
Location: Alderton
Posts: 235

United Kingdom 2012 Discovery 4 3.0 SDV6 HSE Auto BournvilleDiscovery 4

True. Actually thinking about it, my nipper selected reverse whilst I was driving once. The box went to neutral and just flashed at reverse. The car wouldn't allow it, so I doubt it would allow park and it would probably flash 'P' and stay in neutral.
All irrelevant really as I've proved that I myself am speaking utter b@ll@cks.
I'll get my coat
  
Post #19713466th Aug 2018 9:07 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8227

England 2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris GreyDiscovery 4

I’ve accidentally gone into reverse at about 3mph with my D3 Shocked

I am trying to get my head round the purpose of this interlock that seems to be giving owners a lot of problems, when is it actually used?
A gear selection cannot be made without your foot on the brake.
The knob returns to P and goes down when the engine is switched off.
Although the knob can be turned(I think) when it is retracted with engine off, it cannot be started unless in P or N.
It can be moved to N whilst in motion and back into drive whilst in motion(H>L transfer box changed), same as gear stick.
The only danger I can imagine is if the engine is left running unattended in P which is no different to doing that with a manual.
So what is it’s purpose?
Must be a Health and Safety issue!
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #19714227th Aug 2018 7:56 am
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evo8
 


Member Since: 29 Jan 2008
Location: Zalesie
Posts: 289

Slovakia 2013 Discovery 4 3.0 TDV6 S Auto Baltic BlueDiscovery 4

M3DPO wrote:
Never thought to look on Ebag for one, I am not sure that is the problem though, but it's got to be worth £35 to find out. Good spot Thumbs Up
I have done a slight mod to get me back on the road, not up to my usual standard but I am mobile again.


Hi, what was the problem at the end. The complete Rotary Selector or a part of it had to be replaced or there was a problem somewhere else? A friend just got stuck somewhere exactly in the same situation - car in "D", cannot start now.
Thanks
 2013 D4 TDV6 S; Baltic Blue; IID Tool BT
2007 D3 TDV6 SE, Auto; club Faultmate MSV2 
 
Post #218803119th Nov 2020 10:22 am
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mjom89
 


Member Since: 13 Sep 2011
Location: Essex
Posts: 593

England 2016 Discovery 4 3.0 SDV6 Commercial Auto Loire BlueDiscovery 4

I have fixed one of these before with a rubber band. Found the instructions on the internet... Had to remove the controller, split it and then hold the lock out the way with a band. This was a temp fix to get the car in N and started but this was about 6 months ago now and the band is still there (not my car)
  
Post #218818319th Nov 2020 8:36 pm
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evo8
 


Member Since: 29 Jan 2008
Location: Zalesie
Posts: 289

Slovakia 2013 Discovery 4 3.0 TDV6 S Auto Baltic BlueDiscovery 4

Thank you for the info. Thumbs Up
 2013 D4 TDV6 S; Baltic Blue; IID Tool BT
2007 D3 TDV6 SE, Auto; club Faultmate MSV2 
 
Post #218848821st Nov 2020 7:14 am
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Kelvo
 


Member Since: 07 Aug 2015
Location: Perth WA
Posts: 264

Australia 2014 Discovery 4 3.0 TDV6 Base 7 Seat Auto Fuji WhiteDiscovery 4

evo8 wrote:


Hi, what was the problem at the end. The complete Rotary Selector or a part of it had to be replaced or there was a problem somewhere else? A friend just got stuck somewhere exactly in the same situation - car in "D", cannot start now.
Thanks


Have a read of this solution https://www.aulro.com/afvb/l319-discovery-...blems.html
 MY14 TDV6  
Post #218849221st Nov 2020 7:47 am
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Discoed
 


Member Since: 16 Jun 2010
Location: Yorkshire
Posts: 1020

United Kingdom 2014 Discovery 4 3.0 SDV6 XS Auto Corris GreyDiscovery 4

So a simple trip to the shop to get a few bits resulted in my rotary gear selector refusing to move from park.

Looks like a recovery and a new unit unless anyone has any other ideas

(2014MY with 55k)
 D4 2014
1965 Land Rover series 2A (200Tdi) 
 
Post #219490819th Dec 2020 6:44 pm
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