Heating and Air Conditioning

Nominal Values For Pressures And Temperatures

INFORMATION: The temperature of the air from the "centre" dashboard vents must lie within the prescribed tolerance range within 5 minutes, depending on the ambient temperature.

General test prerequisites
- Close doors, windows and sliding roof
- Insert temperature probe into centre vent
- Measure ambient temperature
- Open all dashboard vents
- Switch ignition on
- Press recirculating-air button
- Set temperature control to maximum cooling
- Switch fresh-air blower to stage 4
- Start engine
- Operate air condition while idling
- Set engine speed to 2000 rpm (start of time measurement)

If the prescribed nominal values are not reached, the cooling system must be checked for leaks and repaired.

Centre vent temperature as a function of ambient temperature.

Nominal values for pressures and temperatures
High pressure in cold circuit as a function of ambient temperature

Low pressure in cold circuit as a function of ambient temperature