I had the first ever suspension fault on my 2006 xj8. One of the rear shocks failed and so I parked it immediately pulled C2302 Leveling plausability error code and subsequently ordered Arnott Coil Spring Conversion kit C-2745.
I'll be removing the air suspension components and all the items will be for sale... compressor, lines, tank, control module, all 4 shocks ( 3 work perfectly ) and never had a single issue with the air suspension system. I made my mind up a long time ago that if there was ever a failure, I will replace air suspension system with the static coil from Arnott and so the decision to order the kit was easy.

 

What's your price?

 

I'd be happy to get $400 ( you pay shipping ) and to be clear that price includes the following:
A.) Two front air springs
B.) One rear air spring
C.) One compressor
D.) One tank
E.) One module
F.) Optionally one bad rear air spring

 

Just completed the Arnott coil over installation. Definitely not as smooth as the air ride however I made that choice. It was the right rear that failed. All other air springs had pressure. Make me an offer.

 

Air springs are Comfort ride models. My 2006 XJ8 Base model does have the "Sport mode" button near the shifter.