Mercedes Benz A/C Evaporator Core Replacement C240 4Matic

Vehicle presented with a loss of refrigerant, the standard evacuation of the A/C was preformed and no gross (large) leaks were detected. Our service protocol is always recharge the air conditioning (A/C) systems with a UV test dye during any A/C service. Since the refrigerant is a gas, it is very near impossible to visually witness the leakage, other than perhaps refrigerant oil staining. The UV dye clearly shows the point of leakage, be it a hose, seal, compressor or other part. One of the most challenging components of the A/C system to diagnose is the evaporator core, located inside the [...]