I have a 2009 Mercedes B200. The A/C isn’t cooling the car. – Gay
Not functioning at all? A large leak may have completely depleted the Freon charge or an electrical problem may be present.
Here are a couple of easy steps to help troubleshoot:
Start inside the vehicle, checking for proper air flow. The interior blower motor: is it spinning properly through all the speeds? If not, have you replaced the cabin filters recently? Dirty or clogged filters will impede air flow.