My new to me X5 is on its way here

[crystalworks]

Originally Posted by semcoinc

On high mileage suspension compressor pumps (like mine at 113K) I had a great result by buying the complete head unit from a source on Ali.

My compressor cylinder bore was shot and the new cylinder head and piston ring restored excellent performance and no more codes.

$22

https://www.aliexpress.com/item/Air-...866104110.html

Yes I first tried Bag Pipin Andy’s piston ring solution but no joy.

Mike

I think I am going to do mine before doing my stereo setup... because afterwards access will be, let's call it less than ideal.

If you remove the lower trunk floor Crowz... you'll be able to hear it running. Even a healthy pump makes enough noise to be heard without that.

[Crowz]

Originally Posted by crystalworks

I think I am going to do mine before doing my stereo setup... because afterwards access will be, let's call it less than ideal.

If you remove the lower trunk floor Crowz... you'll be able to hear it running. Even a healthy pump makes enough noise to be heard without that.

Weather permitting I will check that tomorrow. This weekend for sure.

[PropellerHead]

Originally Posted by crystalworks

If you remove the lower trunk floor Crowz... you'll be able to hear it running. Even a healthy pump makes enough noise to be heard without that.

Originally Posted by PropellerHead

The pump is only loud enough to hear (for me on both air suspension E53's) if you're on top of it.