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Slight movement in seat base cushion
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RRUK
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Member Since: 16 Aug 2005
Location: UK
Posts: 676

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4
Slight movement in seat base cushion

I've read a number of threads via the search but I don't think they answer this query.

My seat base cushion is NOT creeping forward as others have had, so I don't think there's cracks in the frame etc.

Both sides do this- the seat cushion can move back and forth about 2 mm, so when you brake, you feel it etc. It's annoying and I want to fix it.

Is the seat cushion itself held down by clips that could have weakened and therefore move, or is there a screw/bolt fixing that could be loose?

Seems odd that both do it, passenger seats rarely get the same amount of use, car has relatively low miles (49K)

Anyone got an exploded diagram of how the seat is put together?

Its a 2016 late model D4 HSE
 1998 Defender 110 TUM HS FFR Hard Top XD WOLF

2016 Discovery 4 HSE

1982 Series 3 2.25 Petrol Hard top- Oscar, as featured in Classic Land Rover Magazine for 7 months 
 
Post #234189212th Jul 2023 8:11 am
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8225

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

The seat squab is held in position by 4 torque screws, the front ones are very difficult to access and may even be missing if a previous owner has not fitted them.
Access the rear ones first as that will give you a good idea of what you are looking for, move the seat maximum forward and up, go to the rear foot well(rear passenger door) and you will see the back two torque screws holding the squab in place, the front two are the same, to access them put the seat maximum back and high, pull the front black cover off with maximum force, if you decide to remove the squab be sure you use the correct size torque bit in a 1/4” drive ratchet as they are usually very tight and made out of cheese, should you round one off you will have a nightmare of a job.
The squab will just lift out but be aware there are a lot of cables under there, if you go any further take a photo of them to assist refitting. Thumbs Up
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #234190312th Jul 2023 10:29 am
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RRUK
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Member Since: 16 Aug 2005
Location: UK
Posts: 676

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

Thanks for the detailed information, that really helps. I’ll take a look.
 1998 Defender 110 TUM HS FFR Hard Top XD WOLF

2016 Discovery 4 HSE

1982 Series 3 2.25 Petrol Hard top- Oscar, as featured in Classic Land Rover Magazine for 7 months 
 
Post #234195512th Jul 2023 9:17 pm
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RRUK
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Member Since: 16 Aug 2005
Location: UK
Posts: 676

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

M3DPO wrote:
The seat squab is held in position by 4 torque screws, the front ones are very difficult to access and may even be missing if a previous owner has not fitted them.:


They are tight -as. It's not those that are allowing the cushion to move ever so slightly.

My Guess (without an exploded diagram) is that the cushion in held in with some clips too, and these are allowing the movement
 1998 Defender 110 TUM HS FFR Hard Top XD WOLF

2016 Discovery 4 HSE

1982 Series 3 2.25 Petrol Hard top- Oscar, as featured in Classic Land Rover Magazine for 7 months 
 
Post #234244017th Jul 2023 11:10 am
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waterbuoy
 


Member Since: 26 Oct 2013
Location: Argyll
Posts: 2921

United Kingdom 2009 Discovery 3 TDV6 SE Auto Stornoway GreyDiscovery 3

Does the seat base move back under electric motor and stay there for a while before it starts to move to and fro? If so then I remember a previous thread where it was advised that it was due to play in the drive mechanism. My D3 (now on 290k) has done it since about 50k, but I have just learned to live with it.
 Currently 2009 Disco 3 SE, 2013 MY D4 HSE and 2016 D4 SE
Previously:
TD5 Defender 110 CSW (230k miles)
300TDi Disco 1 (289k)
4 RR Classics (300-350k each, 2 manual, 2 auto)
110 V8 CSW (220k)
S3 109 hi cap pickup (ex RN)
S2A 88 Safari SW with lpg conversion (bloody lethal) 
 
Post #234244317th Jul 2023 11:16 am
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RRUK
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Member Since: 16 Aug 2005
Location: UK
Posts: 676

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

No it’s not that symptom.

If I am standing outside the car and grab the seat base I can get it to move slightly but it’s not the frame moving, just the cushion part.
 1998 Defender 110 TUM HS FFR Hard Top XD WOLF

2016 Discovery 4 HSE

1982 Series 3 2.25 Petrol Hard top- Oscar, as featured in Classic Land Rover Magazine for 7 months 
 
Post #234262318th Jul 2023 2:56 pm
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M3DPO
 


Member Since: 22 Sep 2010
Location: Notts.
Posts: 8225

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

Undo the four torque screws lift the base out and have a look!
 It can when others can't,
It will when others won't,
It goes where others don't. 
 
Post #234265718th Jul 2023 6:36 pm
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RRUK
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Member Since: 16 Aug 2005
Location: UK
Posts: 676

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Auto Santorini BlackDiscovery 4

That's a really good point!

I should have thought have that, thanks! Whistle
 1998 Defender 110 TUM HS FFR Hard Top XD WOLF

2016 Discovery 4 HSE

1982 Series 3 2.25 Petrol Hard top- Oscar, as featured in Classic Land Rover Magazine for 7 months 
 
Post #234282720th Jul 2023 8:14 am
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