Does EAS really hard fault that often?

Sorry Peter but to the best of my knowledge you cant test eas driver unit. I got a new replacement from the UK.

Gary

You don't need to find an air source if you run an "in series" compressor setup like mine! Two factory compressors doing the work of one, means I've got one spare if another packs up!

Cheers
Keithy

Great idea!!! Always did wonder why the mod's here hadn't created any sticky posts for the top p38 issues... All the knowledge is here, it's just a bitch to retrieve easily sometimes and a pain in the arse retyping it for new forumites all the time.

Maybe a "newbies thread" with common prob's and suggested solutions. Or even just a search guide with exact prob topics to search?

Hey Ron, is that something for mod's to work up or do we have to vote on what needs to become a sticky in our section? How's this supposed to work?

Try this for interest. I have recently rebuild (with O rings ) the valve block. corrected faults with Eas unlock. Car takes a long time to pump up . at least 15 min. Had another hard fault yesterday, system wouldn't reach standard profile and went into fault mode. cleared with unlock and fault was Rear Right Valve stuck open. stripped that solenoid down and changed stem o ring and checked everything else. Put back in and system is pumping again but failing to reach desired height in a descent time frame. When I get out of the car and lock it the car will immediately lose all height and down to access mode. I thought previously that it is suppose to. Made sense that the car lowers itself so I can get back in but most others indicate that the car should not lose height (even overnight let alone in 10 seconds after locking) What is the correct working system suppose to do? When does the car go into access height? Any thoughts??

From memory it will go into access height when selected. As it does for off road height. Car will lower from standard height to road height after reaching 80kph for a 30 seconds . Should go back up to standard height after being at 55 kph for 30 seconds, altho it can be locked at road height ?? Hope this helps Also can be lock at other heights. High can be selected under 55kph then reverts to standard.

All info & instructions are in your owners manual or on RAVE

Gary

Thanks for that 33 chinacars, drove to work this morning and system pumped up to standard height after a while ( maybe 5 min).
stopped and parked and locked car ( no movement). Checked three hours later and both rear were down but front remained at standard height. Opened car and retrieved something and closed and locked car again. Again the front both sides dropped down. Locking the vehicle obviously is triggering a response. Is my ECU or Driver Unit causing this?

Car will auto self level. So if one corner is a little down car will keep trying to level itself all the way down to the bump stops. Mine did this nearly all the time over night. Two ways to stop self levelling. One is to leave door/bonnet/ tail gate open. Two is to remove fuse/ relay under passenger seat.
Park it in your shed with a door open and you can then see which air bag is at fault. It maybe that you have leaking air bag or air line. How new are your air bags . May not show up until up to a certain height. I also had my valve block apart a few times even with new "o" rings. ie crimped "o" rings.

With mine would drive about 10 km's before fault. Valve perminatly open / closed or something simular. Reset with EAS Kicker . Drive another 10km's, another fault. Compressor not working ( Probably over heated) Reset again . Then usually no more problems for the day. As we are 35kms from town was not really any drama. R.R only driven once a week or so. If used every day when on holidays I had no problems:)

Gary

Peter, when you refurbed the valve block, did you happen to notice by chance the state of the epoxy sealant on the underside of the Driver unit? It takes a lot of heat and deteriorates over time and assumes the appearance of badly heat shocked chocolate... :eek:

Assuming the o-rings, solenoids, diaphragm and non-return valves are all functioning corrrectly then the symptoms certainly sound very much like the Driver unit especially if it has never previously been replaced ...

I first began to suspect it on mine when the vehicle would suddenly raise itself to extended off road height at traffic lights ...SWMBO would not believe I was not "showing off" :wasntme::angel:

No matter what calibration I wrote to the EAS ECU, the system seemed to have a mind of its own... Other times it would behave irrationally ...to the extent that I had an iPAQ 4150 PDA loaded with the PDA version of EASUnlock app permanently plugged into the OBD II port ready to clear faults until such time as I could get another Drive box.

don't fall for a second hand one..get a new one from the UK. Well worth it. http://www.britishparts.co.uk/.sc/ms...%20DRIVE%20BOX

EDIT: as you've prob worked out, the Drive box translates commands from the EAS ECU and manages the multitude of open/shut/for how long commands controlling the solenoids. The point is, the EAS ECU initiates say even a tiny adjustment to maintain the self levelling while parked, a faulty Drive box can get the whole thing scrambled, manifesting the odd behaviour you've noticed...

Thanks hoges
That driver unit sure is a mystical piece of electrical stuff
I did previously note that the substance on the back was dry like an old block of chocolate but have never seen a new one to compare with
I believe the driver unit was manufactured by Dunlop but I am sure they subcontracted out to Lucas
I will play around a bit more this weekend to see what other symptoms I can find to narrow down the problem areas
As an aside I noticed some small water drops on one of the solenoids between the valve block and the solenoid shaft mounting block. Could this come from the drier?

Ok pumped up to standard height and pulled relay from under seat
Within half an hour road to centre wheel arch height changed front r 820 to 830 cm, front left 810 to 790 cm , rear right 830 to 750cm and rear left 820 to 710 cm so I suppose that confirm airbag leak unless air can still escape from the valve block.
Also put car into hard fault when I pulled the relay and assume this is normal.
Seems the more I test the more problems I discover
Any advise on new bags?