Mercedes-Benz E 320, Operator'S Manual

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92
Safety and Security
Driving safety systems
The SBC brake servo assistance switches
off automatically
앫
approximately two minutes after you
turned the SmartKey in the starter
switch to position
0 or removed the
SmartKey
앫
approximately two minutes after you
pressed the KEYLESS-GO* start/stop
button to turn off the engine or power
supply and opened the driver’s door
(with driver’s door open, the starter
switch is set to position
0 , same as
SmartKey removed from starter
switch)
앫
approximately 20 seconds after you
locked the vehicle from outside
Note on driving with the SBC
앫
Following extended periods of only mi-
nor loads to your brake system, you
should occasionally apply the brakes
when traveling at high speeds. This im-
proves the grip of the brake pads.
앫
After driving on wet or snow-covered
roads, you should apply your brakes
firmly before parking your vehicle. This
produces heat which serves to dry the
brake disks and help prevent corro-
sion.
앫
On long and steep grades, shift to a
lower gear (gear range
1 , 2 , or 3 ) to
prevent the brakes from overheating
and to reduce brake wear.
앫
After hard braking, it is advisable to
drive on for some time so that the air
stream will cool down the brakes fast-
er.
앫
Only Mercedes-Benz approved compo-
nents (e.g. brake pads) should be in-
stalled on your vehicle. Brake pads not
approved by Mercedes-Benz may im-
pair the safety of your vehicle.
Warning!
G
Have brake pad replacement and other work
on the SBC brake system carried out by
qualified technicians only. Contact an au-
thorized Mercedes-Benz Center for further
information. The SBC brake system must be
deactivated prior to working on the system.
High pressure is intermittently built up in the
system as part of its automatic self-test. In
addition, the system is automatically acti-
vated when the vehicle is unlocked by
SmartKey, when the driver or passenger
door is opened, when the starter switch is
turned to position
1
, when the brake pedal
is depressed or when the parking brake is
released. Failure to deactivate the system
prior to maintenance will cause brake pis-
tons to extend and brake fluid to leak, which
may result in injuries (contusions and acid
burns). Extended brake pistons may also
cause injury.
Warning!
G
Be very careful not to endanger other road
users when you apply the brakes.