Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the function-
ality of your brakes at regular intervals.
You can find a description of Brake Assist
(BAS) on (
Y
page 61).
Mercedes-Benz recommends that you only
have brake pads/linings installed on your vehi-
cle which have been approved for Mercedes-
Benz vehicles or which correspond to an
equivalent quality standard. Brake pads/
linings which have not been approved for
Mercedes-Benz vehicles or which are not of an
equivalent quality could affect your vehicle's
operating safety.
Mercedes-Benz recommends that you only use
brake fluid that has been specially approved
for your vehicle by Mercedes-Benz, or which
corresponds to an equivalent quality standard.
Brake fluid which has not been approved for
Mercedes-Benz vehicles or which is not of an
equivalent quality could affect your vehicle's
operating safety.
Checking brake lining thickness
You can measure the break pad/lining thick-
ness using a test gage. Color-coding (green or
red) on the test gage allows you to determine
whether the brake pad/lining thickness is still
sufficient. The test gage is in the vehicle docu-
ment 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 gage
A
.
X
Secure the vehicle against rolling away
(
Y
page 145).
X
Engage park position P.
X
Switch off the engine.
X
Place test gage
A
between the wheel's
spokes on brake pad/lining
=
.
X
Hold test gage
A
vertically on brake
disc
:
and slide measuring pin
;
onto
brake disc
:
.
X
Check which color field
?
the arrow on
measuring pin
;
is pointing to.
Green: the brake pad/lining thickness is
sufficient.
Red: the brake pad/lining thickness is not
sufficient. Have the brake pads/lining
checked at a qualified specialist workshop.
To avoid an inaccurate measurement:
R
make sure you position the wheels suitably
R
do not put the measuring pin on a recess in
the brake disc
Driving on wet roads
Hydroplaning
If the road surface is wet, hydroplaning may
occur depending on water level, speed and tire
tread depth.
152
Driving tips
Dri
vin
g
and
parking