This is for an 2006 XJ Sovereign 2.8 Diesel

Would anyone be so kind as to let me know where the air compressor for the suspension is located and how to get at it?

Likewise is the relay for the air compressor on the right front side under the bonnet and marked R4?

Would be much appreciated.

 

Compressor is behind the front bumper on LH side in direction of travel. Don't know where the relay is.

 

For purposes of access, the compressor can be removed by pulling the left wheel liner out.

 

Here is how I did it. https://www.jaguarforums.com/forum/x...removal-80799/

Everyone who's done the swap via the wheel-well must have hands the size of a child or access to a hoist or taken off the wheel cause there was no way I could do it with the car on the ground with lowered suspension & big wheels.

Can't remember which relay it is for the compressor, but it's a brown one, same size/type as what's used for the main beam of the headlights. I swapped them over and it seemed to help for a little while, but in the end the compressor had to be replaced.

 

Superb really appreciate this, luckily managed to get a new compressor.