Member Since: 21 Feb 2012
Location: Lancashire
Posts: 603
SUSPENSION COMPRESSOR
Hi guys,
Need help finding a fault with wagon. Compressor failed last night on way home from Hereford and had to drive whole way blinding people
Changed compressor but still have fault code and can’t figure it out
Any advice welcome
"Your mind is like a parachute! It will only function when open"!
Kenny
18th Oct 2019 10:39 am
Bazza.
Member Since: 06 Jul 2018
Location: Essex
Posts: 332
When I had that fault it was the filters in the compressor which had hardened (probably been soaked) So an overhaul kit fixed it.
So the fault was air not being able to pass through the Dryer.
Did you remove all caps before fitting the new compressor?
Did you fit a whole new compressor, Dryer as well or is the dryer the same?
Is the suspension lowering OK? if so check height level sensors.Disco 4 2012
18th Oct 2019 11:11 am
AIRBORNE MEDIC
Member Since: 21 Feb 2012
Location: Lancashire
Posts: 603
Bazza,
New compressor complete and pipes mate. When you go to select SUSPENSION HIEGHT it just comes back up with suspension fault "Your mind is like a parachute! It will only function when open"!
Kenny
18th Oct 2019 11:20 am
JonM
Member Since: 24 May 2012
Location: North Yorkshire
Posts: 1247
When the compressor on my D4 failed it also blew the fuse (apparently it's a big one 60A or something) in the engine bay fuse box.
Probably worth checking.MY2022 D5 HSE D300 - with extra nice bits added
MY2019 D5 HSE 3.0 SDV6 - sold to a dealer for a crazy price! - So good I bought another!
MY2012 D4 HSE 3.0 SDV6 - retired to a new home
18th Oct 2019 11:22 am
AIRBORNE MEDIC
Member Since: 21 Feb 2012
Location: Lancashire
Posts: 603
Compressor is running mate so not sure if it would if fuse had blown? Problem appears to be communication with system "Your mind is like a parachute! It will only function when open"!
Kenny
18th Oct 2019 11:26 am
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20842
Being a 2011, presumably, the original compressor was a Hitachi, and the replacement is an AMK?
Member Since: 21 Feb 2012
Location: Lancashire
Posts: 603
No mate it was an AMK that came out and an AMK went back in "Your mind is like a parachute! It will only function when open"!
Kenny
18th Oct 2019 11:31 am
Weyboat
Member Since: 13 Apr 2018
Location: Weymouth
Posts: 273
C1A13-64
Pressure Does Not Decrease When Venting Gallery - Signal
plausibility failure
Possible Causes
Exhaust valve stuck closed
Gallery pipe blocked/damaged/crushed
Air suspension exhaust silencer blocked/restricted
Actions
Using the manufacturer approved diagnostic system, test the operation of the exhaust valve (vehicle ride height interface)
Check the gallery pipe for blockages/damage/crushing
Check the air suspension exhaust silencer for blockages/restrictionsGone 2016 Landmark D4
Current 2015 HSE D4 - AKA - 'Gandalf the Grey'
18th Oct 2019 12:19 pm
Bazza.
Member Since: 06 Jul 2018
Location: Essex
Posts: 332
AIRBORNE MEDIC wrote:
Bazza,
New compressor complete and pipes mate. When you go to select SUSPENSION HIEGHT it just comes back up with suspension fault
Have you re set the ECU? i.e. re set/cleared the fault code.
If it's going into extended mode when you try to lower it there has to be a blockage somewhere. If as you say everything is new then is it possible that a pipe has been pinched or a cap left in somewhere? failing that the rear valve block or the pipes between the compressor and the valve blocks.
Still could be a height sensor though If any one of them does not change the car thinks it's grounded and comes back up.Disco 4 2012
18th Oct 2019 3:22 pm
dgardel
Member Since: 03 Nov 2009
Location: Greater Venice
Posts: 2025
may be powder (fron the silica grains) into the corner valvesDiscovery 5 tdv6 HSE Corris Gray Outback Engineering Limited Edition IID Pro MV License
18th Oct 2019 3:23 pm
AIRBORNE MEDIC
Member Since: 21 Feb 2012
Location: Lancashire
Posts: 603
Guys, thanks for all the help and input.
Back from garage and still none the wiser and figured out that the replacement unit was faulty Came from BRITPART and although the metal casing was obviously AMK, the compressor/air dryer obviously was not which would account for so many things when trying to pair it. Anyway, still looking for the cause, we plugged the old compressor back in and low and behold it worked again no faults, no lights and warnings, just worked normally
So trying to make sense of it, the assumption is that there is a leak in the system/pipes and after a long, long ninja drive yesterday, the air compressor just couldn’t keep up and decided to sack it and stop working. We spent 12 hours driving from Hastings, via Hereford to Preston in Lancashire. So if it was a leak it would make sense that the compressor just couldn’t continue to compensate for that duration of time and stopped working
Still scratching my head as to why it started to work normally once it was plugged in again but hay ho, it’s working now and hasn’t lost any air so it gives me time to source a “GENUINE” AMK compressor and book it in for a complete inspection of the pipes and change of compressor when I’ve got more time.
As I said, thanks a lot guys for the help "Your mind is like a parachute! It will only function when open"!
Kenny
18th Oct 2019 4:11 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20842
Member Since: 21 Feb 2012
Location: Lancashire
Posts: 603
Not too sure about that mate. The air dryer had another manufacture name on it which wasn’t AMK The one that came off obviously had Land Rover label on it which means nothing Either way the unit wasn’t working properly and certainly didn’t want to communicate once it was fitted. Perhaps because it was faulty. Just very bizarre that the old unit would communicate and the brand new one wouldn’t ?"Your mind is like a parachute! It will only function when open"!
Kenny
18th Oct 2019 8:33 pm
Littlewill
Member Since: 14 Sep 2015
Location: Lincolnshire
Posts: 484
Have to emptied the dryer contents (silica balls) to see if they are wet?
25th Oct 2019 2:29 pm
InTheHighlands
Member Since: 13 Apr 2016
Location: Alford
Posts: 19
Compressor running indicator
One thing I did with my Disco 2 was to wire in an indicator flashing LED to show me when the compressor was running - so I'd get a warning of a leak.
I wired it to the feed to the compressor solenoid - and it flickered a lot, presumably picking up chatter along the Canbus. But flashed reassuringly when the compressor started.
I'm currently looking for a D4, the D2 having been written off by someone coming over the white line a few weeks back. I'd look to install a similar warning on the D4 - but probably seek to take the feed from the compressor itself, to try to avoid the flickering.
Seemed quite a simple, but useful, idea to me.........Disco 4 65 Landmark
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