Air suspension compressor issues - BMW X5

[rj1986]

Hey all,

So i've been having a bit of a mare with my X5 recently. I've posted this in the BMW section and on a X-Car forum but no responses.

The rear airbags were going, so i ordered some from Aerosus and got the lovely PMW in Chelmsford to fit them.
But after they did, and because i had left it too long, the compressor was kaput.

Managed to limp the car to my parents house - bouncing around like a lunatic - and ordered an Aerosus compressor, and got it to a local mechanic who works on top end stuff through word of mouth, and his mate who is Ex BMW techie.

They replace the pump, and all is golden for 24 hours - the car rises and stays up as it should, pump silent as a mouse's fart.

But today, my Dad goes to take it out, and it throws up the self leveling error after about 5-10 miles.
Get it home, nothing on the code reader, so do the battery disconnect trick.

As expected, that threw up about 8 million dash warnings due to the car thinking it's a new battery with low voltage, that all went away after a short blast when the battery tops itself up and the car has a think.
But then after that, it throw up the suspension warning again, and starts sitting low.

Took it back to the mechanic, and he tries to fire the compressor via a computer and nothing, but it is taking a current. Also it blew and keeps blowing a 40 amp fuses under the dash. Swapped the relay for another BMW one - still blowing fuses.

Any ideas? Faulty control module? Lemon of a compressor?

Also, if the compressor is dodgy, Aerosus will return it under warranty, but i'll be out £150 for the labour. Is there anything i can do to get them to pay at least part of it?


TIA

[Petrolhead_Rich]

did you supply the compressor or the garage that fitted it?

if you supplied it, then £150 down I'm afraid (might be able to get a small amount out of the compressor manufacturer as goodwill)

if thy supplied it, their problem.

[rj1986]

I supplied it but luckily the garage only charged £40 to do the swap out.

Turns out the old motor had pretty much disintegrated and had left a few ball bearings in the air lines. The new pump had sucked these up and jammed up, causing it to short.

New one supplies as good will gesture, air lines vacuumed out, swapped out pump and jobs a goodun

[jonzy26]

Hi ive had issues with my air suspension compressors 4 in 4 years its also had new bags on the rear i have found when changing this pump water in the pipe with the quick release plug and rusting around the air line connectors is it possible to clean these out and how or is there a way of cleaning to prevent me buying a pump every year