Ventilation

Ventilation

Air and flap control (heating unit)

NOTE:
Upper air outlet openings of the heating unit from front to rear:
- Opening for center vents and "extended ventilation panel"
- Opening for side air vent (for 2-zone system, B-pillar if necessary)
- Defrost opening

The basic concept of the front heating unit was retained in spite of the increase in comfort afforded by the "extended ventilation panel". The front heating unit supplies conditioned, prepared air to all front air ducts and air vents in the usual way (2-zone automatic climate control).










Air guide (components integrated into the dashboard)







The necessary modifications to the ventilation system were primarily made in the connection area of the heating unit (see illustration on right) for the air ducts. Most modifications were made behind the frame on the heating unit. The following illustration shows the air duct for the "extended ventilation panel" (position 1).







In a 4-zone automatic climate control system, all air vents at the rear (including the B-pillar) are supplied via the rear heating unit (left wheel housing). The function and design of the rear automatic climate control system have not changed to any great extent.







NOTE: The function and design of the rear heating unit are largely comparable with the previous model.