TRUCK STOP QUEBEC

So I've got a bit of a situation with my E-Class that's been bugging me for the past couple of weeks. The ride feels unusually harsh, especially when going over speed bumps or those uneven patches of road we have around the industrial areas, and I'm noticing a kind of clunking noise from the front end that definitely wasn't there before. I'm pretty sure it's something to do with the air suspension because I've read that these systems can be temperamental as the car ages, but honestly I'm not mechanically inclined enough to diagnose it myself. What I do know is that I absolutely don't want to take it to just any garage that'll start replacing random parts without actually pinpointing the problem, because I've heard way too many stories about people getting ripped off that way. I'm based around Musaffah so ideally I'd love somewhere nearby that I can drop the car off and not have to worry about getting stranded without transport. I stumbled across a place that offers Expert Mercedes repair and service in Musaffah Shabiya and it seemed promising from what I could gather online, but I always trust actual owner experiences more than random reviews. Has anyone here had their suspension work done there or can recommend somewhere else that genuinely knows these cars inside out?