p38 air suspension playing up

pandy7203 · Dec 7, 2009

hi i have a p38 1997 dse ,iam having problems with the air suspension rising .when i leave the vechical parked up ,on normal level mode when i go bac to it the access light is lite and the normal level indicater is flashing if i sit there running the engine it will not go up or down .after driving it for a few mile it rises up to the normal level .and works normal again ,any ideas plz

kernowdragon · Dec 7, 2009

pandy7203 said:
hi i have a p38 1997 dse ,iam having problems with the air suspension rising .when i leave the vechical parked up ,on normal level mode when i go bac to it the access light is lite and the normal level indicater is flashing if i sit there running the engine it will not go up or down .after driving it for a few mile it rises up to the normal level .and works normal again ,any ideas plz

Must be that time of year, mine's done exactly the same thing today! My guess is compressor seal is knackered, but gonna put it on computer when I get home and check fault codes.

Has anyone tried the "2nd generation" seal/ring combos on offer on ebay (from Netherlands I think), and whats their opinion of them??

pandy7203 · Dec 7, 2009

kernowdragon said:
Must be that time of year, mine's done exactly the same thing today! My guess is compressor seal is knackered, but gonna put it on computer when I get home and check fault codes.we have already had mine on computer came up with no faults .

Has anyone tried the "2nd generation" seal/ring combos on offer on ebay (from Netherlands I think), and whats their opinion of them??[/quot

Datatek · Dec 7, 2009

pandy7203 said:
hi i have a p38 1997 dse ,iam having problems with the air suspension rising .when i leave the vechical parked up ,on normal level mode when i go bac to it the access light is lite and the normal level indicater is flashing if i sit there running the engine it will not go up or down .after driving it for a few mile it rises up to the normal level .and works normal again ,any ideas plz

I assume when you "sit there with the engine running" that you have got the doors shut? I reckon it could be a leaky airbag that leaks less when it has warmed up

nathan5346 · Dec 7, 2009

:doh: wot bit didnt u understand this morning? :doh:

PanosL · Dec 7, 2009

How long do you leave it for and it goes down? And then may I ask how fast you go? How long you wait?
You should worry if this happens daily or within the day. If you leave the car for more than three days it can go down. Also, I believe it varies a lot if the ground is flat where you park it.
A very first quick suggestion is to check the rubber pipes at the back of the valve block. If you see they are moving (doggy) you may loose air from a connection to the valve block. Then the compressor may be doing over work.
Start from there....
Good luck

Bernievonbeer · May 30, 2014

Hi I have a 2001 p38 my suspension as started to rise once driving for a short while to the upper position,some days it works fine then it will raise on its own.
also at random times it sits in access mode and takes a while to rise maybe ten minutes.no faults on dash tho

tomcat59alan · May 30, 2014

kernowdragon said:
Must be that time of year, mine's done exactly the same thing today! My guess is compressor seal is knackered, but gonna put it on computer when I get home and check fault codes.

Has anyone tried the "2nd generation" seal/ring combos on offer on ebay (from Netherlands I think), and whats their opinion of them??

If it's from landroverwinkel then I have used their kit without problems

Datatek · May 30, 2014

Bernievonbeer said:
Hi I have a 2001 p38 my suspension as started to rise once driving for a short while to the upper position,some days it works fine then it will raise on its own.
also at random times it sits in access mode and takes a while to rise maybe ten minutes.no faults on dash tho

You would be better starting a new thread.
If it does not rise, either there is a leak or the compressor is fecked. If the airsprings are original they will be leaking, design life is 7/8 years 80K miles.
Random rising can be a dodgy height sensor, corroded connectors behind the kick panel in the passenger footwell, duff height switch etc.

Bernievonbeer · May 30, 2014

hi thanks datatek, cant figure out how to start new thread I seem to be a muppet there.
as far as I know all air bags have been replaced.may be a strange question been as its a rangey,but does dirt affect the height sensor

Datatek · May 30, 2014

Bernievonbeer said:
hi thanks datatek, cant figure out how to start new thread I seem to be a muppet there.
as far as I know all air bags have been replaced.may be a strange question been as its a rangey,but does dirt affect the height sensor

Dirt does not affect the height sensors, water can though, the connectors can corrode.
Posting the same question on different threads will get you roasted.
Removing your caravan from the hitch will certainly cause the rear to rise and if a door is open it will stay up as any open door freezes the suspension.
You need to be sure about the airbags.

Bernievonbeer · May 30, 2014

ok mate thanks,only posted to the other as I thought it was more relevant,i will check for corrosion. are the sensors and connectors easy to get at? i will clean all connectors over the weekend

Datatek · May 30, 2014

Bernievonbeer said:
ok mate thanks,only posted to the other as I thought it was more relevant,i will check for corrosion. are the sensors and connectors easy to get at? i will clean all connectors over the weekend

On the inside of the chassis rails, one for each corner.

p38 air suspension playing up

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