300SD (140.134) L6-3.5L DSL Turbo (603.971) (1993)
Air Duct: Diagrams
VENTILATION
Ventilation
Image Reference:
A = Fresh air
B = Recirculated air
C = Warm air
D = Exhaust air
Air Flow, Heating & Ventilation
Image Reference:
A = Fresh air
B = Recirculating air
C = Warm air