I have been all over the internet and reading on this site, I'm not trying to be lazy. As I worked on my brakes and was trying to bleed the brakes I would start it I could hear the compressor kick on, the car was on jackstands at all 4 corners. When I got the car down it looks like it is in 4WD mode. On my brake thread some one stated it was in "jacking mode" and some one else stated it would come down when I drove it a couple miles. I tried that and it is still stuck up in the clouds. I still need to get some proprietary codes read but I'm going to have to drive a distance and I think the airshocks are maxed out I think I could probably harm them if I try drive on them over inflated. The system seems to be good as in no leaks. So..... my question would be how do I get it back to ride height?

 

Here is a pic

 

If it were only the front end or one of the rear corners, I would suspect that a height sensor was bent or otherwise unhappy. But it looks like all four corners are up.

Besides Jacking Mode, the only other thing similar described in the manual is Transportation Mode, in which the vehicle is raised 20mm to reduce the possibility of the suspension bottoming out during transport on a truck. Exiting Transportation Mode requires WDS or SDD, but as far as I know, entering it does too.

That leads me to this question: while you were working on the brakes and the car was on jackstands, did you disconnect the battery or did the battery become discharged? If so, the air suspension calibration may have been corrupted and will need to be recalibrated with SDD.

Hopefully someone else will have a better idea.

BTW, there's a summary of the system operation and a link to the Air Suspension section of the Dealer Training Manual in this thread:

Air Suspension & ECATS Summary: Components & Operation

Cheers,

Don

 

I read those when I was searching, I think it was you that posted them in another thread. The battery never went dead, in fact I've been afraid to disconnect the battery until this is solved. After replacing the rear calipers I get the "parking brake failure" and I've read in here the procedure to correct it and that requires disconnecting the battery. I have been thinking if I do that and it thinks this is home upon reconnecting the battery I might be screwed worse. Trying to slove one problem at a time but it seems one leads to another. Not quitting though.

 

I have been very lucky i have never had a problem with the air suspension hence I have no real experience but if it was mine i think I would try the following:

Remove compressor fuse

Depressurise struts or the whole system if nescessary.

Replace fuse.

Run engine

listen for compressor kicking in.

If it does not rise to the right height, if possible drive it around for up to

20mins.

 

Not sure that just putting out the compressor fuse while depressurising the whole system to put the car down would solve the issue as the ASM may raise it again to the sky once the compressor starts again.
It may be that the ASM has stored in its memory a too high height info at some stage, as Don is suggesting.
Apparently, this wrong info cannot disappear by only disconnecting the battery and should need recalibration through SDD.

 

To Don's point, if it's transportation mode, it will throw code C2780 and requires SDD/ IDS to clear.

If your not getting a code, Jacking mode. To verify jacking mode, drive the vehicle to above 3 km/h (1.8 mph) to exit jacking mode and check for lowering. If the vehicle does not lower, the system must be tested using the Jaguar approved diagnostic system.

If you don't have SDD, then I would go with meirion1's suggestion. It's your only other non cost option at this point. I'd add a twist though. I would depressurize the system and then as soon as the "vehicle too low" light goes off, start driving it, slowly for a few miles.

 

Well, I have good news to report. Following meirion1's advice, I did just that.
1 removed the compressor fuse
2 went to trunk and loosened 4 lines to depressurize the system
(I might add that I don't want to lower mine but seeing it all deflated the potential is definitely there.)
3 replaced fuse
4 started motor and waited, sure enough it came right up to ride height and stopped.


Took it for a ride, brakes still a little soft, better than before but still soft. Now I feel comfortable enough to disconnect the battery to reset the "parking break fault".

 

Good news !
I am surprised but it is good to know, thank you for the feedback.

 

Agreed and thanks for closing out the "ride too high" thread wardf as it will help others down the road.

 

Agreed and thanks for closing out the "ride too high" thread wardf as it will help others down the road.

 

NO problem, I hope it helps some one some time. I think I'm at a standstill now until I can get some codes read on the DSC and ABS/traction control. I wanted to say thank you all for the help also.