83.30_134a PDF

A service bulletin addressing air conditioning musty/moldy odor complaints in Mercedes-Benz vehicles. The document outlines cleaning procedures for the air conditioning evaporator and interior to address odors, emphasizing the use of specialized cleaning agents and techniques. Instructions involve specific steps for cleaning and maintaining the AC system across different vehicle models, with detailed procedural diagrams and warnings. The document also provides part numbers and additional technical documentation for proper maintenance.