I just came across a 2005 XJR with 126k miles.

What I know so far is the following needs to be replaced-

1. Front air shocks
2. Front air compressor

I know Arnott makes replacement and the parts will probably run me north of $1600 or so. I have found a Jaguar mechanic will install for me for about $150.

I am just wondering what other area that I need to check before buying the car.

The car has been maintained at dealer up to 117k miles. I haven't seen the car in person yet. Only carfax so far.

This car will be a hobby car for me. Always wanted to get a classic XJ.

Really appreciate any help or comment

 

There is only one air compressor, fitted at the front behind the bumper on the LH side of the car. These are not too expensive, and the car is probably on its second by now.

So why does the car need two front air spring units ? Leaks ?

Each air spring unit has a bush at the bottom end. These don't last very long so these would probably have been replaced twice by now. The bushes don't cost much, but labour to do the fronts can be significant due to possible bolt seizure.

 

The right front is leaking- which led to the compressor to fail.

So i figured that it would just be safe to replace both front at same time.

What is the p/n for the bushing? I may just as well get it replaced at same time.

The car currently is at a jaguar specialist shop as the previous owner decides not to repair and sell the car it is.

Thank you

 

Unlike with steel coil springs, that need to match, the height of air springs is closely controlled by the control unit using inputs from the height sensor, so can be replaced singly provided the shock absorber part is still serviceable. Over time and mileage, steel coils tend to sack-out so if one breaks, both sides are normally replaced as a pair.

If it were me, I'd look for an air spring on eBay and just swap one out. Arnott rebuilds cover the air spring diaphragm, not the shock. Being Bilsteins, the shocks are an excellent product so last a lot longer than the diaphragms which are made of rubber. Of course putting on an Arnott rebuilt unit is another option, and you get a warranty which you don't on eBay.

If you do buy on eBay, like I did for a complete set of new old-stock, make sure you check the air spring rating. Jaguar fitted two types, Comfort (Green spot) and Sport (red spot). The XJRs had Sport springs fitted.

 

I would also pay close attention to the state of the coolant hoses. Seems some get a bit soft and bloated. Most can be changed without too much trouble but there is one house under the supercharger that takes hours to replace.
I have very recent familiarity of that on my 150k mile XJR.
Other than the hose and aux coolant pump, and saging headlining, the car has not given any problems.