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Yes, I'm desperately seeking an answer.
Name is Greg and i will assist you the best i can, please Only accept if you are happy with my answer.
To be absolutely honest with you the best way to repair this system is to hook it up to the diagnostic Land rover scan tool and first check for codes , the code will then let you know what has malfunctioned .
I could give you little hint of where to check like on the front left side where the hose from the air bag goes over the strut or should i say under the strut is known to rub against the body and perforate making the system leak.
With the scan tool you can switch on the pump and activate many switches and check the functions of the leveling sensors , without the tool you could be days checking this system.
Just a note on this system after 8 to 10 years this system get very unreliable and is prone to malfunction , this is why a company has bought out a normal suspension replacement shock and springs to replace this air system.
Please click here for further details . this is the option i give my customer and i have personally used this kit from this company and they are very good and easy to install.
Need further assistance with this issue please let me know.
Kind regards Greg
Thanks, but we ended up taking it to a dealer to be repaired....wish we could have gotten a faster answer to save some $$$$$, but that's the way it goes sometime.
Have a great day .
2003 Jetta left rear window blue plastic part of the