Mercedes-Benz SL 550 BlueEFFICIENCY, Operator'S Manual

Page: 162 / 572

! As the ESP
®
system operates
automatically, the engine and the ignition
system must be switched off (SmartKey in
position
0 or 1 in the ignition lock or Start/
Stop button in position 0 or 1) when:
R
testing the parking brake on a brake
dynamometer.
R
you intend to have the vehicle towed with
the front axle raised.
Braking maneuvers triggered automatically
by ESP
®
may seriously damage the brake
system.
All checks and maintenance work on the
brake system must be carried out at a
qualified specialist workshop. Have this work
carried out at an authorized Mercedes-Benz
Center.
Have the brake pads and brake fluid installed
or replaced at a qualified specialist workshop,
e.g. an authorized Mercedes-Benz Center.
If the brake system has only been subject to
moderate loads, you should test the
functionality of your brakes at regular
intervals. To do so, press firmly on the brake
pedal when driving at a high speed. This
improves the grip of the brake pads.
A description of Brake Assist (BAS):
(
Y
page 58)
Checking brake lining thickness
You can measure the break pad/lining
thickness using a test gauge. Color-coding
(green or red) on the test gauge allows you to
determine whether the brake pad/lining
thickness is still sufficient. The test gauge is
in the vehicle document wallet in the glove
box.
Front wheel
Rear wheel
X
Bring the vehicle and wheels into a suitable
position so that you can attach test gauge
A
.
X
Secure the vehicle against rolling away
(
Y
page 154).
X
Move the selector lever to position P.
X
Switch off the engine.
X
Place test gauge
A
between the wheel's
spokes on brake pad/lining
=
.
160
Driving tips
Driving and parking