This bulletin contains instructions for applying Mitsubishi Cooling Coil Coating to help eliminate musty odors emanating from the air conditioner evaporator coils.
The customer may complain of an unpleasant, "musty" odor in the passenger compartment when the fan blower is switched on. This condition can be related to the area where the vehicle is operated, occurring more often in humid climates.
The unpleasant "musty" odor from the air conditioner system occurs when condensation, which is a normal occurrence, forms in and around the air conditioner's evaporator coil and mixes with airborne pollutants and substances.
To eliminate these odors, treat the air conditioner evaporator/cooling coil with Mitsubishi Cooling Coil Coating. This coating will not only eliminate the odors, but will protect the evaporator coil.
On most vehicles, the coating can be applied onto the A/C evaporator coil surfaces through the interior air recirculate door. This door is usually accessible from behind the glove box.
All Mitsubishi vehicles equipped with air conditioning
The complete treatment takes about 2 hours including drying and curing. Actual labor, however, is about 20 minutes.
If skin or eye contact occurs, wash skin or flush eyes with generous amounts of water.
Be sure to use to use goggles and breathing protection (3M: 07185). DO NOT inhale vapors.
Use the genuine Mitsubishi Parts listed.