u/Vongole_X

Hello,

My Golf 2015- ac is blowing cold air on driver side vent and warm air on the passenger side. It took a long time to get the temperature to drop on the passenger side still it wasn’t cold enough.

Could it be the AC refrigerant?
Or anything else.

R-134a refrigerant- i see a lot of diy stuff on refilling it.

Is it worth doing?
How much does it cost to take it a mechanic. Any info?