I've got a 2015 Mercedes E400 and the AC started blowing warm air on the driver side last week, but cold on the passenger side. A friend said it might be a bad blend door actuator or low refrigerant, but the dealer in Dubai quoted me 2,000 just for a diagnostic. I've heard that a Sharjah Mercedes AC Workshop might be more reasonable, but I'm nervous about taking it somewhere that doesn't have the right diagnostic software for these dual zone systems. Has anyone here actually had their Mercedes AC fixed in Sharjah and can recommend a place that knows what they're doing? I don't want to end up with a leak that comes back after a month. Appreciate any leads.