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174Automatic climate control
Technical
data
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Residual engine heat utilization
With the engine switched off, it is possible to continue
to heat or ventilate the interior for a short while. Air
volume and distribution are controlled automatically.
To select:
Turn the electronic key in starter switch to position 1
or 0 or remove it altogether.
Press button T. The display shows “REST”.
This function selection will not activate if the battery
level is insufficient.
The function switches off automatically:
• if the electronic key in starter switch is turned to
position 2,
• after approximately 30 minutes (if residual engine
heat utilization is selected on the optional rear air
conditioner: after approximately 15 minutes),
• if the battery voltage drops.
Note:
The battery symbol # will appear in the automatic
climate control display some time before the residual
engine heat utilization is switched off if the battery
voltage drops.