This chapter contains information on the following subjects:
→ Function and operation by the user
The Driver Alert System informs the driver if his or her driving shows signs of tiredness.
Additional information and warnings:

WARNING
The Driver Alert System has been developed for use only while driving on highways and good roads.
If there is a system fault, proceed to a qualified workshop immediately to have the system checked.
Function and operation by the userGeneral repair instructions
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→ Chapter „Safety precautions when working on high-voltage
system“ Comply with notes.
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Read self-diagnosis of auxiliary heater using vehicle
diagnostic tester.
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...
Gear-change indicator
Fig. 140 In the instrument cluster display:
gear-change indicator
First read and observe the introductory information
and safety warnings The instrument cluster display may, depending on the
vehicle's equipment level, indicate which gear should be selected to reduce fuel
consumption ...
Cigarette lighter
Fig. 124 In the lower part of the centre
console: cigarette lighter
First read and observe the introductory information
and safety warnings A cigarette lighter is located in the lower part of the
centre console.
With the ignition switched on, press in the knob on the cigarette lighter ...