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DISCO3.CO.UK > Maintenance & Mods (D3)

Faulty suspension

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Fin-M

Member Since: 22 Jan 2023
Location: Essex
Posts: 16

2006 Discovery 3 TDV6 HSE Auto Stornoway Grey

Faulty suspension

I appreciate this is covered in many places but I’m trying to determine what faults are the problem and what faults may be as a result for example no air is obviously going to cause another issue relating to ride height or somthing like that. Faults are:
U0421 invalid data received ride level control module
C1a27 compressor circuit
C1131air supply
C1a20 pressure increases too slow when filling reservoir
C1130 air spring air supply

Any clues here if it’s a leak, sensor or pump? I called my usuallyLR specialist and they are on a 3week waiting list! Also if it’s safe to drive it?

17th May 2023 6:12 pm

Fin-M

Member Since: 22 Jan 2023
Location: Essex
Posts: 16

Just an update for anyone searching for answers in the near future- it was the large 60 amp “littel” fuse had blown. Always start with the smallest cheapest part rather than assume the most expensive bit is at fault. That said it didn’t blow for no good reason and I suspect the pump is on its way out, and a leak somewhere on the bags or valvle blocks is probably the root of the problem. So investigations will now be made and we shall see. But at least it’s back on the road and fuses will be kept on standby.

18th May 2023 7:19 pm

Sidestick

Member Since: 22 Apr 2012
Location: Rome
Posts: 2309

2008 Discovery 3 TDV6 HSE Auto Java Black

Experienced the same issue years ago and the root cause of blowing 60 Amp fuse was the electric motor at the compressor which shows one of the rotor inductors burnished due to excessive torque requested from the compressor side...

Click image to enlarge

- Easy-Lift suspension module 4.0
- GoodWinch 9500 lb
- Full underbody protections
- Tree/Rock sidebars
- Prospeed roofrack & ladder
- Compressor guard
- Raised Air Intake
- Driving lights (2+4)
- 50 mm Waffle boards
- Altox Heater control
- Overland Rooftop Tent
- Rear seats entertainment
- Front & Rear camera
- GVIF
- Removable tow bar
- Cubby box fridge
- BFG KO2 265/65R17
- iidTool BT

19th May 2023 5:25 pm

Globetrotter448

Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1798

2007 Discovery 3 4.0 V6 Petrol SE Auto Java Black

The 60 amp fuse was changed to 70 amps at a later date

20th May 2023 12:55 pm

Fin-M

Member Since: 22 Jan 2023
Location: Essex
Posts: 16

Suspension fault came back but interesting after turning it on and off again the fault cleared and works so the fuse didn’t blow this time. Must be indicating an issue somewhere, I have a new pump now just debating fitting it before or after I go away on holiday.

21st May 2023 2:36 pm

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