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Petronius4



Member Since: 07 Oct 2015
Location: Somerset
Posts: 93

United Kingdom 2015 Defender 90 Puma 2.2 SW Keswick Green
Rear door central locking
Hello all

My 2015 has just started to experience a really annoying glitch. The rear door locks with the key fob central locking but does not unlock. All the other doors unlock fine but I have to use the key to unlock the rear door.

Before I start dismantling the whole door has anyone experienced this before and any tips/advice on what the problem may be?

Thanks all.

P. -------------------------------
👲🏻 1986 ex-Military 90 NAD 2.5 Soft Top. Sold
🇬🇧 2015 Defender 90 - Ripon Landrover Heritage 006
Post #1017815 8th Dec 2023 3:50pm
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andy63



Member Since: 30 Jun 2023
Location: north east
Posts: 250

United Kingdom 2014 Defender 110 Puma 2.2 CSW Aintree Green
Yes, that happens on mine.. A 2014 110..
When I unlock with the fob the back door sometimes stays locked.. Usually if I lock and unlock again it works.. It hasn't annoyed me enough to look into it yet.. I thought maybe if I'd used the key at some point in the past to lock it it may have had an effect on the key fob operation
Post #1017822 8th Dec 2023 4:51pm
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peanutbob



Member Since: 12 Feb 2009
Location: UK
Posts: 280

United Kingdom 
Re: Rear door central locking
Petronius4 wrote:
Hello all

My 2015 has just started to experience a really annoying glitch. The rear door locks with the key fob central locking but does not unlock. All the other doors unlock fine but I have to use the key to unlock the rear door.

Before I start dismantling the whole door has anyone experienced this before and any tips/advice on what the problem may be?

Thanks all.

P.

When you unlock the rear door manually, does it seem that there is little resistance in that the lock seems quite loose? I had the same with my 12 plate 90, so when it was in for servicing I asked the garage to check. Turned out that inside the rear door something had become detached in the mechanism inside the door. It was a swift fix whatever it was!
Post #1017837 8th Dec 2023 8:35pm
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jcw



Member Since: 11 Sep 2016
Location: Gloucestershire
Posts: 150

United Kingdom 2007 Defender 90 Puma 2.4 HT Stornoway Grey
May be worth taking off the door card & checking the linkage in the photo below is all in place.

The servo in the bottom left corner pushes / pulls the rod when using the key fob to lock / unlock.

I’ve also found the adjustment of the striker plate attached to the door frame can affect the locking / unlocking if it’s not in the correct position i.e. pulling the door in too much or too little.



Click image to enlarge
Post #1017840 8th Dec 2023 9:09pm
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peanutbob



Member Since: 12 Feb 2009
Location: UK
Posts: 280

United Kingdom 
Good photo the cross bar is what came detached on my Defender.
Post #1017861 9th Dec 2023 9:50am
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Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2056

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
I have, in a past life, had a CL servo/solenoid fail so that it only worked in one direction. Might be worth a look.

However, it may be something mechanical as others have said.

Taking the door card off, and having a multimeter or test lamp to hand should get you back on track đź‘Ť
Post #1017862 9th Dec 2023 10:00am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5424

2006 Defender 110 Td5 USW Zermatt Silver
Mine won’t unlock when cold on one rear door. It’s all part of the character Rolling with laughter Rolling with laughter
Post #1017873 9th Dec 2023 12:00pm
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MK



Member Since: 28 Aug 2008
Location: Santiago
Posts: 2266

Chile 2007 Defender 110 Puma 2.4 SW Chawton White
I removed the door latch and gave a good rinse in kerosene. Then sprayed with WD40 or rust-off. Now it works.

In this case the locking tab did not move all the way down.



Click image to enlarge
 Puma 110" SW

.............................................................
Earth first. Other planets later
Post #1017874 9th Dec 2023 12:14pm
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Penfold_6290



Member Since: 22 Sep 2021
Location: Dorset
Posts: 274

United Kingdom 2002 Defender 110 Td5 CSW Epsom Green
I had a similar issue, one of the springs had broken inside the lock and it wasn't returning to the unlock position.
Post #1018365 14th Dec 2023 12:00pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
MK wrote:
I removed the door latch and gave a good rinse in kerosene. Then sprayed with WD40 or rust-off. Now it works.

In this case the locking tab did not move all the way down.



Click image to enlarge


The lock hasn't changed much in decades and that little locking tab has always been temperamental. In my old 90 I had a piece of silicone tube over it to add resistance because it would unlock on its own Rolling with laughter

Miffy doesn't unlock from time to time almost always when it has been sub zero overnight so suspect that a little brake cleaner followed by a light oil would solve this.
Post #1018366 14th Dec 2023 12:10pm
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MadTom



Member Since: 10 Sep 2013
Location: Olomouc
Posts: 579

Czech Republic 1999 Defender 130 Td5 HCPU Baltic Blue
During last year I have to clean several Defender lock, when sorting non-working central locking. Just spraying some cleaner into the lock is not enough. Remove from door, submerse in cleaner a flush several times through. Lube with some light oil a bit and then some ligh grease. After that, all locks worked better tha new. The was quite a big amount of dirt and old hard grease inside of the locks. "Drobek" = The Small One - Discovery 2, "BlufĂ­nek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo Smile
Post #1018378 14th Dec 2023 1:48pm
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 1782

United Kingdom 
Removing the door card is not hard, but if not careful and / or it’s cold the plastic clips can break. So worth ordering a few spare clips in advance of removing “just in case”. Also using a hair dryer ( the only use I have for one now ) to warm up door card and clips helps in preventing them breaking.
Post #1018399 14th Dec 2023 5:23pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

United Kingdom 
For those of you who like the tools as much as the vehicle, a cheap pair of these pliers are worth their weight in gold

https://www.amazon.co.uk/Glarks-Universal-...60f7104ce8

Makes getting those door cards off a cinch Thumbs Up
Post #1018429 15th Dec 2023 9:20am
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Linds Hanson



Member Since: 16 Jan 2021
Location: Cornwall
Posts: 443

United Kingdom 
Make sure the linkage is fitted correctly (as in the photo's above) if the fulcrum is fitted incorrectly the door locks on unlock and unlocks when the others are locked>. Dont ask how I know!
Post #1018440 15th Dec 2023 1:36pm
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