Hi there, new member to the forum so apologise if this has already been covered in a thread .
bought a 2003 l322 in January with some minor issues, suspension was down by a couple of inches front D/S so initially bought an adjustable link arm to the height sensor which cured the problem, realised I could reset the suspension heights so the 'boy' in me said 'push the big red button' it went to fully extended and blew a rear air bag ! Replaced that , cleared the suspension inactive and had another go, front airbag split due to poor condition so replaced them all, now sat in manual height settings with inactive but darn't reset to try again ! Has anyone successfully used the foxwell NT 530 to reset the suspension, I can't see the original settings in live data ? Also I seem to have upset the idle speed now running at about 950 rpm, any help appreciated , thanks in advance , stu

 

I can't help you with the Foxwell tool but I had a similar issue with my 2006 Jaguar XJ8 X351 when I used the Launch scanner to lower the suspension. JLR used a factory setting so it calibrates by you measuring your height and the scanner doing the math to add or subtract your value to get to the correct figure.

That's a lot to ask from an aftermarket scanner that is cloning the data and trying to act like a factory tool. The result in my Jag was to run the front bags all the way up to max height and deflate the rears! The fronts were new at the time, probably the only reason it didn't blow up like yours!

I finally got the heights correct at the end by only adjusting 20mm at a time and only adjusting one axle at a time and entering in the "correct" value for the other. 8-12 times later it was set correctly and held. Point is, when you find a tool that works, go in stages and if anyone else hasn't done this yet and tries it, I would recommend doing it in small stages instead of trying all at once.

Nominal height from hub centre to wheel arch (not liner):
Front 493 ± 2 mm (19.4 in ± 0.08 in), Rear 483 ± 2 mm (19.0 in ± 0.08 in)

So when you enter the value in your tool, add or subtract 20mm from the one you want to adjust and leave the second value the factory value to start with.

Good luck!!

 

Thank you Robert for you're reply, sorry I didn't see it until today !!
yes im actually heading along the route that you took, offsetting the front heights dramatically against the rears and it's been much closer ! I discovered the higher the input height, the lower the suspension ended up , I'm tempted to set to off-road height (820 mm) the foxwell tool measures from the bottom of the rim to wheel arch, the standard height should be around 767 on the front, I've also discovered the battery isn't that great and reads approx 11.5 v during calibration, which I understand is probably not helping the process ! New battery nxt week and I'll keep checking this thread ( no notifications) cheers again this they are two different cars, the theory remains the same 😊

 

hi were you able to recalibrate with foxwel thanks