Every time there's an EAS problem someone points out that it might knacker the compressor because it's designed, as I think Wammers put it, cheaply rather than toughness, and won't cope with constant use. So why when we replace them don't we get a better compressor? Presumably there's a good reason why nobody does, but what is it?

I've read on rangerovers.net of possible replacements but in my mind the compressor on the P38 is perfect for the job if properly maintained.

The original compressor is perfectly adequate and has quite a long life usually. However it is not designed for continuous use and it is usually leaks in the airbags at 6/7 years that see it off.

Quite a few people on Rangerovers.net have replaced the compressor with an uprated alterative. The main reason is if you fit Arnott Gen III airbags for the increased lift. They need a bigger volume of air and if you raise and lower the car a few times in quick succession it drains the tank. I have also seen cars with a plumbed in tyre inflater for those who go out in the sticks.

The problem is they never fit in the EAS box. Most are mounted in the spare wheel well. The DC5000 compressor is popular, also someone did twin OEM compressors - one in the front and one in the back. Must pull quite a few amps. Weirdest one I saw was an old aircon compressor driven by a huge 12v electric motor.

It is best to fit an air pressure gauge to see what is going on. You can see a problem and fix it before it knackers the compressor.

Fitting a pressure gauge is on my list of things to do when I have finished with repairs. Got to sort a sensor out first. The gauge I suppose is the best way to see whether the pump is on and keeping up with demand and leak checking.