XJ8 2006 350 LWB Air Suspension Challenge

X300
1

Hello All,

Have a 2006 XJ8 that has been performing flawlessly in the ten or so years that I have had it. Recently it seemed to raise/lower the suspension less and less. Today it did not do anything. So…first question does the air suspension have it’s own compressor ? If so, where is it ? The regular “in car” air con is working fine. The reservoir and valve block under spare wheel in trunk/boot has no obvious faults. Any and all suggestions/comments would be welcome on how to proceed from here.
Thanking you all in advance

Regards

Peter.

2

Hi Peter, google is your friend;

3

Hello Robin,

Thanks for the quick reply. Is this compressor seperate from the “in car” air con compressor ?

Thanks

Peter

4

I would think so as the Air suspension is only compressing air as against the aircon gas (R134?)

5

That makes good sense. Thanks. Video is excellent. Was just wondering before I tackle that. Is there a troubleshooting tree to eliminate ensors etc before I get to the compressor ?

Thanks

Peter

6

Probably the best thing to do is look on e-manual online and purchase the X350 service manual. Reasonably priced.

image
image2160×1620 259 KB

7

Hi Rob,

Thanks for all the help. Will get that Manual ordered in the Morning. Have been spoilt with the 2006. Before moving to Idaho had a 1989 XJ6 VDP I had for well over 20 years and was sorry to having to sell it.Best Jag I ever had. Coming to Idaho had to shed quite a few things so just kept the 2006 and the Jimmy. Got the use of a hoist very close to me so I will not have to crawl under the car. Am getting up here now, just passed 82 but still throwing a shadow.
So Thank You again. Will follow up with questions if needed if you do not mind.

Very Best Regards

Peter

8

No problems although I probably cant help too much as I only have the lowly ‘99 XJR :innocent:

9

Take a look here air suspension is covered in the first section:

http://jagrepair.com/images/AutoRepairPhotos/XJ%2004-05Tech%20Guide.pdf

10
11

Hello Neil,

Just got home. That Tech Guide looks just great. Thank You, very much appreciated. Looks like I will be back on the Forums but with the 2006 !

Regards

Peter.

12

Hello Andy,

Thank you for sending that link. I have saved the website already as I am sure I will be looking at it more closely !

Regards

Peter.