Mercedes-Benz E 300 Operator's Manual page 63

Warning!
When leaving the vehicle always
remove the electronic key from the
steering lock, and lock the vehicle.
Do not leave children unattended in
the vehicle, or with access to an un-
locked vehicle. Unsupervised use of
vehicle equipment may cause serious
personal injury.
Important!
If the electronic key is left in the
steering lock position 0 for an extended
period of time, it can no longer be
turned in the lock. In this case, remove
electronic key from steering lock and
reinsert.
Caution!
To prevent accelerated battery
discharge and a possible dead battery,
always remove the electronic key from
the steering lock. Do not leave the
electronic key in steering lock position
0.
Notes:
A warning sounds when the driver's
door is opened with the electronic key
in steering lock position 1 or 0.
With the engine at idle speed, the
charging rate of the alternator (output)
is limited.
It is therefore recommended to turn off
unnecessary electrical consumers while
driving in stop-and-go traffic. This
precaution helps to avoid draining of
the battery.
Unnecessary strain on the battery and
charging system may be minimized by
turning off the following power
consumers, for example: Heated seats,
rear window defroster. In addition, the
automatic climate air volume control
should be set to the lowest position.
The steering lock can only be unlocked
with the vehicle battery properly
charged and connected.
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