I've got a bit of a headache with my 2019 A6 and I'm hoping someone here can point me in the right direction. The car's been sitting lower on the front left corner every morning for the past week or so and it's clearly got an air leak somewhere in the system, but the problem is I've already been to two different places and neither of them could actually find the source of the leak. One of them just topped up the system with some sealant stuff that I'm pretty sure isn't even recommended by Audi, and the other one wanted to replace both front struts at a cost that made my eyes water without even properly diagnosing which one was actually faulty. I'm getting a bit fed up with all this guesswork and I really need to find someone who actually understands these adaptive air suspension systems properly and can pinpoint exactly where the problem is without just throwing expensive parts at it and hoping for the best. I've been looking around Al Quoz because I've heard there's a few decent independent workshops there that specialise in German cars, and I came across what looks like a Genuine Audi suspension service in Al Quoz that seems to have a good reputation. Has anyone here actually used them for air suspension work on their A6, A7, or Q7? I'm particularly interested to know if they actually use genuine parts and if they properly reset the ride height sensors afterwards because I've heard that's something a lot of places get wrong. Any honest feedback would be really helpful because I'm getting pretty desperate at this point and I just want the car sorted properly. Thanks in advance.