Thanks for all replies, I'm aware that without codes it's a bit impossible. I was relying on the specific timing, i.e. the '12 seconds' of running compressor being a known part of a fault, particularly as it has happened with two different compressor. I lost my job recently, and with the wife on...

I really appreciate your input, thank you.

Thanks Mark, at this point neither pump runs for more than twelve seconds, with seems to indicate some fault feed back from a sensor. System is completely devoid of air and I don't have any access to diagnostics, the fault, i.e. the precise timing of the failure at around twelve seconds...

Yes, the problem re-occurs with either pump, I should have made that clear. Thanks for taking an interest, by the way.

Hi Mark, the other pump is a different make, from a German company, I actually tested it for a while and it worked fine, ( I'd heard about the update thing myself, and they assured me it wouldn't need one. I'm not sure if I can actually name the company on here, but it seem to be made in much...

Hi all. A few months ago I had a leaky airbag. This was changed, along with the pump, ( I actually bought a second pump from another manufacturer which had been recommended to me, as a back for the future), and all was well. A front ride height sensor was also changed in the same time frame...

Hello, My name is Jon. I'm from a family of lifelong LR owners, hence fairly familiar with their foibles. However, this time, I and others are completely stumped by a problem and I'm hoping for help from the community. I'm a former mechanic, and unfortunately pathologically opposed to asking...