• 83.00 General136
• 83.10 Ventilation35
• 83.20 Heating19
• 83.25 Automatic heater4
• 83.30 Air conditioning140
• 83.40 Air conditioning (automatic)43
• 83.55 A/C compressor26
• 83.57 Temperature control9
• 83.65 Refrigeration units1
• 83.70 Auxiliary/supplementary heater68
• 83.75 Residual engine heat utilization system6
• 83.80 Fragrance system4