I'm hoping someone here can offer some practical advice because I'm starting to get really stressed about my 2016 X5. Over the past week, I've noticed that the rear of the car sits noticeably lower on the driver's side after being parked overnight, and when I start the engine, the compressor runs for ages trying to level it out – sometimes it works, sometimes it doesn't, and I can hear a faint hissing sound from the rear left wheel arch that I'm pretty sure shouldn't be there. I've done the usual research and it seems like these F15 X5s can have issues with the air springs developing micro-cracks or the valve block failing, but I'm not confident enough to diagnose it myself. I'm based in Dubai and I'm looking for a specialist who actually knows BMW air suspension systems and won't just tell me to replace everything at an eye-watering cost. I came across a few options online, including a site called suspensionrepairdubai that covers various German makes, but I'm always skeptical of online claims and I'd rather hear from real owners who've had a good experience. Has anyone here had rear air suspension work done on their X5 or similar BMW model and can recommend a trustworthy workshop in Dubai? Also, roughly what should I expect to pay for replacing air springs on one of these? I'm trying to brace myself for the bill but I have no idea whether I'm looking at 3,000 or 8,000 dirhams. Any advice would be really appreciated because I'm starting to avoid driving the car and that's just not sustainable. Cheers.