DC motor, air recirculation flap
DC motor, air recirculation flap |
If the ignition has been off for more than 10 minutes then air recirculation is selected at the earliest 0-15 seconds after starting the engine and only if the outside temperature is above 25°C and the requested blended-air temperature is the lowest possible for both zones (both zones must be cooled down considerably after start).
Following which, air recirculation can be selected automatically as necessary by the control module in the event of high thermal load, such as low car speed, high outside temperature, high solar intensity or with high coolant temperature.
Air recirculation can also be selected manually on the panel. An LED in the button indicates when the air is being recirculated.
When the ignition is off fresh air is selected after 10 seconds.
Adjustment |
Using the diagnostic tool, the ACC unit can be adjusted to always start with the air recirculation flap in recirculation. The flap immediately adopts this position. Fresh air can only be selected manually on the panel
Diagnostics |
In the event of open circuit or short circuit diagnostic trouble code B2410 is generated.