Hello! I’m new to RRN and I recently took my 2011 Range Rover HSE to the dealer who said I have a bad air compressor. Can someone direct me to the threads that discuss how a normal air compressor should sound? I also have a leak in my front air suspensions. When I went to raise the hight on the RR the compressor made a loud humming noise and expelled air from the system before shutting off. All this lasted less than 5 seconds and it kept repeating the noise for 3 more rounds ( trying to raise my RR to normal hight) before it wouldn’t run at all. I recently ordered a new compressor from Arnott.