Mercedes-Benz E 300 Operator's Manual page 37

Notes:
If doors are unlocked with the central
locking switch after activating the
automatic central locking, and neither
door is opened, then the doors remain
unlocked even at vehicle speeds of
approx. 9 mph (15 km/h) or more.
Opening a door from the inside at
speeds of approx. 9 mph (15 km/h) or
less with the automatic central locking
activated, the door will again be
automatically locked at speeds of
approx. 9 mph (15 km/h) or more.
Important!
When towing the vehicle, or with the
vehicle on a dynamometer test stand,
please, note the following:
With the automatic central locking
activated and the electronic key in
steering lock position 2, the vehicle
doors lock if the left front wheel as
well as the right rear wheel are turning
at vehicle speeds of approx. 9 mph (15
km/h) or more.
To prevent the vehicle door locks from
locking, deactivate the automatic
central locking.
Emergency Unlocking in Case
of Accident
The doors unlock automatically a short
time after an accident (this is intended
to aid rescue and exit). However, the
electronic key must still be in the
steering lock.
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