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DISCO3.CO.UK > Faults & Fixes (D4)

Front suspension dropping

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Higgy

Member Since: 16 Oct 2019
Location: Fareham
Posts: 24

Front suspension dropping

I was getting a random suspension fault when putting in to lower. Occasionally it would come on when driving. Will clear turning off/on again. No codes registered with Gap tool. I have had it raised with fuse 26 out and the front has lowered over the course of 2 weeks without driving it. So there’s a leak at the front and somewhere that is common to both sides. Any ideas??

15th Sep 2024 7:42 pm

Naki Blake

Member Since: 31 Dec 2021
Location: Taranaki
Posts: 310

2006 Discovery 3 4.0 V6 Petrol SE Auto Bonatti Grey

My D3 lowered over 2-3 days with fuse removed, both sides evenly.

I brought the valve block O ring kit from 4x4airseals.com (does front, middle and rear valve blocks). Dessicant from compressor stops O rings sealing. Check out posts from Gstuart re blowing lines out (hopefully he comments)

As you can see via video it's an easy job to replace O rings. Biggest job is removing front bumper (40 minute job).

Cheers Blake

15th Sep 2024 9:53 pm

pjm-84

Member Since: 04 Oct 2016
Location: Hampshire
Posts: 2588

I rebuilt mine a few times and in the end I put a new one on and that cured the problem. The push fit connectors are awesome and a great tip from Gary. Makes the job easier, particularly on the rear......you can do it without removing the front bumper if needs be.

15th Sep 2024 10:00 pm

gstuart

Member Since: 21 Oct 2016
Location: kent
Posts: 14113

2005 Discovery 3 TDV6 Base 7 Seat Auto Java Black

Hi

Many thks guys and so pleased the push fit connectors were useful and indeed come into there own on that back valve block

Indeed ref the lines , disconnected each line both ends one by one and blew them out as the dryer material had gone everywhere seeing it had been neglected by previous owners

Used pressure and vacuum gauges along with isolating valves , shrieder valves to make life easier getting air into the system

Alas also had to replace all 3 x valve blocks as after rebuilding the valve block I vacuum tested them and failed each and every time , in the end because it was in such a mess ended up replacing the

Compressor
Both front air struts as they were leaking after bubble testing them with soapy water
Air tank
3 valve blocks

It was like a new motor after I done that and still drives really nice 3+ years later

Also can pressure or vacuum test the lines to ensure there also ok

Hope that also helps u

Click image to enlarge

16th Sep 2024 6:20 am

itsaguything

Member Since: 20 Dec 2023
Location: Manotick, On
Posts: 252

2015 LR4 3.0 SCV6 HSE Lux Auto Aintree Green

That is the cleanest underside of a LR that I have ever seen!

Has it EVER seen a gravel road?

2015 LR4 HSE Lux Aintree Green
2013 LR2 HSE Radiance Red
2007 XKR Jaguar Racing Green
2005 XJR Jaguar Racing Green
2002 S-Type R British Racing Green

16th Sep 2024 4:55 pm

gstuart

Member Since: 21 Oct 2016
Location: kent
Posts: 14113

Indeed sees an off road track once in a while 🤣

Picture was taken a little while after treating the entire chassis with dinitrol

16th Sep 2024 5:07 pm

itsaguything

Member Since: 20 Dec 2023
Location: Manotick, On
Posts: 252

Cheers! 2015 LR4 HSE Lux Aintree Green
2013 LR2 HSE Radiance Red
2007 XKR Jaguar Racing Green
2005 XJR Jaguar Racing Green
2002 S-Type R British Racing Green

17th Sep 2024 12:27 pm

Higgy

Member Since: 16 Oct 2019
Location: Fareham
Posts: 24

Thanks for the help, replaced all the seals so fingers crossed it sorts it. Managed to just drop the inner wheel arch trim for access.

6th Oct 2024 4:43 pm

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