Mercedes-Benz AC repair in Snellville, GA. From a refrigerant recharge to a full compressor replacement, we diagnose and fix Mercedes AC problems correctly — with STAR-compatible diagnostics and the correct R134a or R1234yf refrigerant for your model.
We handle every level of Mercedes AC repair — from a simple recharge to a full evaporator core replacement.
Mercedes AC systems use proprietary HVAC control modules that require STAR diagnostic software to properly read. Generic AC shops can't access these modules — they guess at the cause and replace parts until something works. We diagnose first.
The most common causes are low refrigerant from a leak, a failed AC compressor, a damaged condenser, or a faulty expansion valve. Mercedes dual-zone COMAND climate systems can also fail due to blend door actuator issues or HVAC control module faults. We use STAR-compatible software to diagnose the root cause — not guess and replace parts.
Most Mercedes-Benz vehicles built before 2017 use R134a refrigerant. Most 2017 and newer Mercedes use R1234yf — which requires different equipment and costs more per pound. We confirm the correct refrigerant spec for your specific model before any AC work begins and have the certified equipment to handle both types.
We won't. Recharging a leaking system without fixing the leak is a waste of money — the refrigerant will escape again, usually within a few weeks. We locate and repair the leak first, then recharge. This is the only approach that actually solves the problem long-term.
Intermittent Mercedes AC is usually caused by a failing compressor clutch, a pressure sensor fault, or an HVAC control module issue. Mercedes dual-zone climate systems are complex — the COMAND controller, two blend door actuators, and multiple temperature sensors can all cause intermittent behavior. STAR-compatible diagnostics let us read exactly which component is faulting.
It depends entirely on what has failed. A refrigerant recharge after a minor O-ring leak is relatively inexpensive. A compressor replacement is more significant, and an evaporator core job — which requires dashboard removal on most Mercedes models — is a major repair. We give you a full written estimate before starting any work.
Yes. We service AC systems on the full Mercedes-Benz lineup including C-Class, E-Class, S-Class, GLC, GLE, GLS, CLA, CLS, AMG models, and older W124/W210/W211 classics. Each generation has its own HVAC system quirks — we have the tools and experience for all of them.
Serving Snellville, Loganville, Grayson, Lawrenceville, and all of Gwinnett County.