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evotime

Member Since: 02 Apr 2021
Location: Aberdeenshire
Posts: 131

Cam-Tech-Craig wrote:

Please don’t think I was picking fault for picking fault’s sake sir… It constantly amazes me just how badly cars from Scotland rot! And if you’re an owner and you’re not knowledgeable about these things? You may miss the window of opportunity to prevent huge bills through unwilling neglect…

No worries, you wont upset me. I will always take all the advice / info I can. Not long got it but seems like plenty to do. SDV8

24th May 2023 3:28pm

evotime

Member Since: 02 Apr 2021
Location: Aberdeenshire
Posts: 131

JayGee wrote:
evotime wrote:
Will be removing the sump plug going forward to be 100% sure the sump is empty. Cant go wrong that way.

The suction tube is attached to the sump where the drain plug would be so you can't get anymore out with that method

Nah. Already drained it via the sump plug. Sump plug is still in play SDV8

24th May 2023 3:38pm

JayGee

Member Since: 27 Jul 2021
Location: London
Posts: 3249

2012 Range Rover Vogue 4.4 V8 Orkney Grey

So you pulled out the extraction fitting or removed a separate sump plug? There is one for the turbo which gets a bit more out. 2012 TDV8 Vogue (L322)

24th May 2023 4:26pm

evotime

Member Since: 02 Apr 2021
Location: Aberdeenshire
Posts: 131

I pulled oil out of the sump with the pump via the connection just to the left of the oil filler cap see pics. I then removed the sump plug to check what oil was lift in the sump.

Click image to enlarge

SDV8

24th May 2023 5:30pm

evotime

Member Since: 02 Apr 2021
Location: Aberdeenshire
Posts: 131

So investigated the sloppy ride. All suspension is good.

I found a bit of information on how the suspension reacts when driving around town (below 30mph) and it would suggest there is little or no damping force applied in the earlier cars. This changed in 2016 onwards(I think, it was maybe 2015). For the life of me I cant find the document again.

This certainly tracks with how my car behaves. In the town its sloppy and shoogles you from side to side if you hit an undulation like its underdamped. Out on the open road (and every other situation) it handles impeccably, corners so flat I cant believe how good it is when nipping on.

I have gotten used to it. SDV8

3rd Aug 2023 5:19pm

MarianaWestminster

Member Since: 14 Jun 2018
Location: UK
Posts: 677

If you happen to find that document evotime I'd be very grateful if you could share it with me.

Sounds interesting ref my suspension!

3rd Aug 2023 6:10pm

GraemeS

Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2491

2012 Range Rover Autobiography TDV8 Bournville

Does the SDV8 sump have 1 or 2 drain plugs? If like the L322's TDV8 sump then only 1 drain plug which drains the turbo reservoir so if the suction tube isn't used then quite an amount of oil will be left in the main part of the sump. However the L322's turbo reservoir doesn't hold 1.5L, being more like 0.5L.

3rd Aug 2023 9:01pm

Gremlin500

Member Since: 11 Mar 2022
Location: Newcastle, UK
Posts: 1495

@Evotime:

Just looking back up at your pics on the first page of the thread and wondering if your lack of success with the pump may have been due to lack of venting of the receiving vessel? If the air can’t get out, the pressure will work against the pump and significantly reduce the suction?
On a similar note, I made that mistake first time I tried to bleed my brakes, (trying to be too OCD and not make a mess on the drive) when I did my “big brakes” conversion, the air in the container needs to be able to get out fairly quickly….. “If it ain’t broke, don’t fix it” -where’s the fun in that?

3rd Aug 2023 9:43pm

evotime

Member Since: 02 Apr 2021
Location: Aberdeenshire
Posts: 131

MarianaWestminster, been searching today. I am pretty sure I found it in the range rover manual but its 11118 pages. Will keep looking. SDV8

4th Aug 2023 11:49am

evotime

Member Since: 02 Apr 2021
Location: Aberdeenshire
Posts: 131

GS, Hmm, not sure. Pretty sure there was only one. SDV8

4th Aug 2023 11:53am

evotime

Member Since: 02 Apr 2021
Location: Aberdeenshire
Posts: 131

G500, Possible lost vacuum from the pipe or as you say feeding into the plastic oil can with limited ventilation caused the issue. SDV8

4th Aug 2023 11:53am

Kot

Member Since: 10 Mar 2021
Location: broadland
Posts: 1225

evotime wrote:
So investigated the sloppy ride. All suspension is good.

I found a bit of information on how the suspension reacts when driving around town (below 30mph) and it would suggest there is little or no damping force applied in the earlier cars. This changed in 2016 onwards(I think, it was maybe 2015). For the life of me I cant find the document again.

This certainly tracks with how my car behaves. In the town its sloppy and shoogles you from side to side if you hit an undulation like its underdamped. Out on the open road (and every other situation) it handles impeccably, corners so flat I cant believe how good it is when nipping on.

I have gotten used to it.

Is it Vehicle Dynamic Suspension 204-05 Overview starting page 5?

Adaptive damping is an electronically controlled suspension system which
continuously adjusts the damping characteristics of the suspension dampers
in reaction to the prevailing driving conditions.
The system is controlled by an Integrated Suspension Control Module. The
module receives signals from three accelerometers, four suspension height
sensors and other vehicle systems to calculate vehicle state, body and wheel
motions and observe driver inputs. These signals are used by the control
module to control the damping characteristics of each damper to the
appropriate level, resulting in improved body control and vehicle ride.

The adaptive damping dampers are oil-filled, gas pressurised mono-tube
units. To maintain wheel travel, the rear dampers feature an additional
external accumulator. The damping force can be adjusted when the vehicle
is being driven by an electronically controlled valve. These dampers provide
an improved compromise between vehicle control and ride comfort than a
typical passive damper. All the dampers have an electrical connector on the
end of the piston rod, in the centre of the top mount.
In each damper, the damping adjustment is made by a solenoid controlled
variable orifice, which opens up a secondary path for oil flow within the
damper. When de-energized, the bypass is closed and all the oil flows
through the main (firm) valve. When energized, the solenoid moves the
armature and control blade. A spring returns the valve to its closed state
when de-energized. The control blade incorporates an orifice which slides
inside a housing to open up the bypass as required.

With the comfort valve energised and the damper moving into compression,
some of the oil flows from the lower portion of the piston through:
a hollow piston rod,
a separate soft (comfort) valve,
a slider housing and orifice,
into the upper portion of the damper, thereby bypassing the main (firm)
valve.
In rebound, the oil flows in the opposite direction. The two valves acting in
parallel allow the damper to operate in a softer state.
The damper operates between these two boundary conditions.

The solenoid in each damper is operated by a 526 Hz PWM (pulse width
modulation) current demand from the Integrated Suspension Control
Module. When fully energized, the control module applies a 1.5A current to
operate the damper in the soft setting. When de-energized (0.0A), the
damper transfers to the firm setting. The current varies continuously as
required to increase and decrease the damping individually in each of the
dampers.

And then goes on about the INTEGRATED SUSPENSION CONTROL MODULE and accelerometers, height sensors etc which all play a part. 2018 SE SDV8 4.4 Byron Blue

4th Aug 2023 1:32pm

evotime

Member Since: 02 Apr 2021
Location: Aberdeenshire
Posts: 131

Yeah I read that this morning, but that's not it. I definitely remember the bit about slower speeds (under 30mph I think) and it was changed in 2016 to stop the float ( I think it was described as).

Only reason it sticks in my mind is now I have proven to myself I really like the RR I intend going for 2016+ next year to be ULEZ compliant and was hoping the newer software would fix it. Prob should have gone there first but did not think I would like it and would likely move on. SDV8

4th Aug 2023 1:46pm

evotime

Member Since: 02 Apr 2021
Location: Aberdeenshire
Posts: 131

Job this time home.

One ball joint boot is leaking but I cant remember which one so decided to replace all 4. Fingers crossed it may even fix the thud when braking I am getting

Click image to enlarge

SDV8

7th Sep 2023 12:28pm

Gremlin500

Member Since: 11 Mar 2022
Location: Newcastle, UK
Posts: 1495

@evotime:

Hope this helps, good luck!

https://www.fullfatrr.com/forum/topic67045.html

“If it ain’t broke, don’t fix it” -where’s the fun in that?

7th Sep 2023 1:40pm

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