Is there a guide to removing the front valve block anywhere?D3 06 Manual Poverty Spec, but commercialised and ARB front Winch bumper
Defender Crew Cab 110 gone
Discovery 3 SE gone
TD5 Discovery
P38 Gone
300Tdi 90 Defender Gone
P38 Gone
200Tdi 110 Gone
TD5 S Discovery Gone
S111 Lightweight Gone
23rd Jul 2018 5:03 pm
Damomerlin
Member Since: 17 Dec 2017
Location: York
Posts: 106
Yep you don't really need one it's easy. Turn your wheel into wards the kerb or remove it. Unscrew wheel arch or just half of it. Then you will see it in the bumper lift it up then undo the screws until hit hisses then wait unscreew 3 pipes easy peesy
23rd Jul 2018 5:41 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13857
Had another session reading codes and checking for leaks etc. Nothing any different than before. Tried another crossover valve which was known to be in perfect order. Behaved the same with the only variance being the amber warning light now pings on after two minutes and stays on constantly. Lifts fine , lowers fine but still showing a light and dropping at the front.
This morning I got a " will raise when system cools down" message when going into off road mode. It was showing 33c in the workshop at the time. I'll see if it repeats when the temperature drops later.
I was told about a guy with a similar problem. His 2007 RR Sport would lower at the rear every now and then and refuse to come up. Along would come the AA guy and up it would come and behave quite happily. A few days later it would repeat the performance. Now firmly into desperation territory every fault code on the car was looked into. Nothing. In the end the problem went away and it took a while to realise that the only change in the scenario was that his wife (who was now driving it)was using a different key fob...His fob..on the floor.. hers no issue... I don't know what concerned him most the deflated RR Sport or his wife explaining to the garage guy that her husband " just can't get it up these days" 2011 D4 HSE, it'll be nice if it ever works!
2014 D4 HSE Luxury. as if one money pit isn't enough!
My old 2005 D3. Now sold after 362000 on the original engine!
26th Jul 2018 2:30 pm
johnlad
Member Since: 02 Dec 2016
Location: blackpool
Posts: 408
I used to get the message regarding the suspension will raise once compressor cools even though it was first start of the day and live data was showing the compressor was cold, I fitted a new Hitachi compressor and it’s been all good since then.
As to the front suspension dropping I’d be inclined to just fit new struts as if there original even if there not leaking there at best 9 years old so will be tired anyway. Just done my struts with OEM parts from Island 4x4 cost £335 front pair and the difference is noticeably better
The air springs all round are new Dunlop units put on for the last MOT as the gaiters were a little perished on the old ones. That said the disco has done 30k since then. Although my Disco has nearly 300000 on the clock it has always been subject to routine planned maintenance and replacement of the usual suspect parts. High mileage it may be, neglected its not.
The issue this time is that no one can pin down the cause of the problem. The great and the good in the local Landy scene have all had a go at a diagnosis without success. It'll be something stupid I'm sure but it's got the upper hand at the moment ! 2011 D4 HSE, it'll be nice if it ever works!
2014 D4 HSE Luxury. as if one money pit isn't enough!
My old 2005 D3. Now sold after 362000 on the original engine!
26th Jul 2018 3:14 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13857
Hi
Apologises if it’s been asked before , have the electrical connectors been checked behind the front passenger wheelarch liner
When I couldn’t pin the leak down on mine I disconnected the lines from the compressor , reservoir valve, air tank etc , valve blocks and tested each line in turn using a pressure gauge and isolating valve
Was long winded and eventually found one leak to be from the left hand strut pipe and where it went to the front air valve block , know u won’t have to this as mine had been neglected before I bought it and ended up replacing
Front , middle and rear valve blocks
Front struts
Air tank
Compressor
Front struts wouldn’t always drop, ended up replacing them and then pressure tested them and they only leaked as the rubber was out of its metal casing and not when it was at a higher height
See you’ve replaced urs
Have u bubble tested the top of the struts and valve blocks , also round the middle of the struts at different heights
Ref different heights , will the front remain ok at off road and not at normal height please , when the f26 fuse has been removed and allowed to stand over night
Hope that may help a little
PS, just another thought , the DSC allows the valve blocks to go into crossover has all the suspension heights been checked and calibrated correctly ,
26th Jul 2018 3:34 pm
Bardley
Member Since: 02 May 2018
Location: Hertfordshire
Posts: 455
**Front struts wouldn’t always drop, ended up replacing them and then pressure tested them and they only leaked as the rubber was out of its metal casing and not when it was at a higher height ***
Often the case with air sus bags.
They are airtight at one height and not at another. The 'rollover' of the rubber can keep them sealed.
The fact that the D4 units are encased with the Damper, and also sealed with a second bellows, doesn't help diagnosis of air leaks. D2's can be just doused with a soapy water solution to check..2011 MY D4 HSE
Previously 2001 D2 TD5, 1996 D1 300Tdi, 1985 90 2.2 petrol.
Bikes! KTM, BMW, British, Classics and others.
26th Jul 2018 4:11 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13857
Hi bardley
Don’t mind admitting it Took me a while to figure it out why it wouldn’t leak at different heights
Then after retesting them indoors the penny dropped with how the rubber rolls inside the strut
Didn’t realise that with the D4 in being encased , always thought they were the same as D3s , always good learning something new , thks
The thing is it has been leak tested to death and it is leak tight. Bar changing out the compressor we have tried just about everything else.
Today it has been stood out on the slope of the drive nose up hill. After two hours it has not dropped more than a millimetre or two. I turned it round and parked it nose downhill and it dropped fifty millimetres in an hour. I'll set it level and take the fuse out later and see if it shifts overnight. I have had a look at the wiring behind the wheel arch liner and it appears to be ok, its certainly not visibly corroded.
I must admit that I think that the problem is electrical/electronic rather than a leak. Its going in next Friday for a session on better diagnostic equipment than mine. They are going to test my key fob too..just in case. 2011 D4 HSE, it'll be nice if it ever works!
2014 D4 HSE Luxury. as if one money pit isn't enough!
My old 2005 D3. Now sold after 362000 on the original engine!
26th Jul 2018 4:55 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13857
Hi
Thks for the details , with it changing like that I wonder if it could possiblly be height sensors or calibration not 100%
Indeed ref the diagnostics as at least then ur be able to see all the live data and that it’s set up correctly on height front and rear
Know when I started on mine it was abit of a minefield , iid did help considerably along with the vast knowledge here
Assume air tank has also been tested
Have u tried pulling the fuse at normal and off road height to see if there’s any change , taking the heights before and after
Plse let us know how u get on and understand can be frustrating at times
Here’s also a chart of what the pressures should be, imagine u might have already seen
The air tank was new last year, it was getting pickled at the front as per usual so I changed it out. The disco is now parked at full height minus fuse 26 so I'll see what tomorrow brings. At least I don't have to be setting off at 0430 which is my normal routine. Something tells me that tomorrow will not be the restful day off I planned. 2011 D4 HSE, it'll be nice if it ever works!
2014 D4 HSE Luxury. as if one money pit isn't enough!
My old 2005 D3. Now sold after 362000 on the original engine!
26th Jul 2018 7:38 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13857
Yeh have little faith
That’s what I done in pulling the fuse at full height then normal when I started the marathon of sorting it out , mine was ok at off road height but dropped at normal height
In once sense at Least u know there’s plenty of extremely knowledgeable people here that can help
Also found nothing worked better finding leaks than soapy water
Is the diagnostics from a dealers that ur going to next Friday
As a side note, after I sorted all the suspension , fitted a worn out rear upper wishbone / 4 x alignment done I couldn’t believe the difference of how nice it drove
26th Jul 2018 7:49 pm
hugeviking
Member Since: 08 Jun 2010
Location: cotswolds
Posts: 1482
No help at all, but is that 300,000 miles on the original engine
Andi.
26th Jul 2018 9:07 pm
Bardley
Member Since: 02 May 2018
Location: Hertfordshire
Posts: 455
**Front struts wouldn’t always drop, ended up replacing them and then pressure tested them and they only leaked as the rubber was out of its metal casing and not when it was at a higher height ***
Often the case with air sus bags.
They are airtight at one height and not at another. The 'rollover' of the rubber can keep them sealed.
The fact that the D4 units are encased with the Damper, and also sealed with a second bellows, doesn't help diagnosis of air leaks. D2's can be just doused with a soapy water solution to check..2011 MY D4 HSE
Previously 2001 D2 TD5, 1996 D1 300Tdi, 1985 90 2.2 petrol.
Bikes! KTM, BMW, British, Classics and others.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
