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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3201

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey
Suspension comfort change after being on 4 post lift

Anybody want to speculate how after the suspension was extended while the front disks and pads were changed it felt like it had also been fitted with new shocks ( reduced 'crashiness' over road imperfections at low speed) )when I drove back from the garage. 2012 TDV8 Vogue (L322)

Post #673128 11th Sep 2023 2:09pm
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mjdronfield



Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7793

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

Unless the rubber bushes moved into a "better” position…. I know they shouldn’t but….

I know on my TD6 if the rear started to creak, I’d drive up a slope at an angle and articulate the suspension…. Creak gone away…..

Think yourself lucky it got better on the lift 🤣. 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Post #673130 11th Sep 2023 2:23pm
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dhallworth



Member Since: 10 Oct 2011
Location: Glasgow
Posts: 3068

United Kingdom 2012 Range Rover Autobiography TDV8 Baltic Blue

You’ll have stretched the shock to its full length and moved the oil around inside it when it was jacked.

The manual for the shock absorbers on some cars tell you to fully extend and compress them half a dozen times before fitting so the oil is where it should be.

Probably the same thing that’s happened to yours.

David. 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Post #673132 11th Sep 2023 3:35pm
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3201

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

I speculated on some redistribution of the oil or release of trapped air in the shocks? Maybe I'll put it extended height mode if it starts to get crashy again. 2012 TDV8 Vogue (L322)

Post #673134 11th Sep 2023 3:50pm
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2475

Australia 2012 Range Rover Autobiography TDV8 Bournville

Did you notice the change in both front and rear or perhaps just the rear?

Noting that when the shocks are extended or compressed while the bypass valves are closed causes the oil to have to pass through the piston valves, I wonder if fully extending gives those a good flush.

Post #673164 11th Sep 2023 9:13pm
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3201

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

Reckon it was all the shocks. 2012 TDV8 Vogue (L322)

Post #673177 12th Sep 2023 6:47am
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2475

Australia 2012 Range Rover Autobiography TDV8 Bournville

Thanks. MW might do well to try putting his L405 on a hoist to see if that improves its ride.
I suspect the change has to do with the oil now being well-mixed and possibly air bubbles forced out but it got me thinking about the function of those rear reservoirs, which might be pressure smoothing rather than holding more oil as the contents don't have any way to significantly mix with the other oil to keep the oil cooler. Furthermore a larger diameter would accomodate more oil and not run the risk of having the canisters knocked-off. My combine harvester has a pressure accumulator in the hydraulics to the rams that support the front, smoothing the short-term high pressure burst that occurs whenever the front is raised or lowered. The accumulator has a compressed gas chamber and I wondered if the rear canisters have a similar function, possibly required to soften the rear to an acceptable level when lightly loaded.

Post #673179 12th Sep 2023 7:28am
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3201

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

My shocks are original and have 163k miles on them. They work with regards to controlling suspension oscillation but likley past their best with regards to other qualities. 2012 TDV8 Vogue (L322)

Post #673182 12th Sep 2023 8:12am
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LandyManSam



Member Since: 10 Jul 2019
Location: Wild West Ireland
Posts: 51

Ireland 2012 Range Rover Vogue TDV8 Santorini Black

Mine does the same thing - even going to off road height and back down again sometimes gives a temporary ride improvement. It is just that though - temporary. Usually back to normal within a few miles. I haven't been able to figure it out either. Sam's Motor & Machine YouTube Channel: https://www.youtube.com/channel/UCgNSRjY0I9FCzsi9ku3ccbw

Home of the 'Cheapest 4.4 TDV8 Range Rover"

Post #673254 13th Sep 2023 8:44am
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