Who’s got a capable Lincoln AC repair shop in Sharjah? Need a proper fix

Honestly, I’m at my wit’s end with my Navigator’s air conditioning. It’s been a nightmare for the past few weeks – one day it’s blowing ice cold, the next it’s just warm air, and now it’s warm constantly no matter what I do. I’ve already had it re-gassed twice at a local garage, but the problem came back within days both times, so I’ve learned my lesson about taking it to people who don’t really know these cars. I’ve read that Lincoln’s climate systems can be pretty complex, especially with the multi-zone setups in the bigger SUVs, and you really need technicians who actually understand the specific Lincoln engineering and have the right diagnostic tools . A friend mentioned that the evaporator core is a common failure point on these models and it’s buried behind the dash, so I really need someone who knows exactly what they’re doing . I did find a listing for a Lincoln Showroom in Sharjah on Al Ruqa Al Hamra Road that might offer service, but I’m not sure if they actually do proper AC diagnostics or just the basic stuff . Ideally I need a shop that offers Capable Lincoln Air Conditioning Repair with proper leak detection and full system diagnosis. Does anyone here have a trusted workshop they’ve actually used for a proper AC diagnosis and repair on their Lincoln in Sharjah that didn’t just top it up? I’d really appreciate a solid recommendation before this summer heat gets even worse.