Maintenance - Mercedes-Benz E-Class Coupe Operator's Manual

quickly and protecting them against corro-
sion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt
residue may form on the brake discs and
brake pads. This can result in a significantly
longer braking distance.
In order to prevent any salt build-up, apply
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the brakes occasionally while paying atten-
tion to the traffic conditions.
Carefully depress the brake pedal and the
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beginning and end of a journey.
Maintain a greater distance to the vehicle
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ahead.
Servicing the brakes
! If the red brake warning lamp lights up in
the instrument cluster and you hear a warn-
ing tone while the engine is running, the
brake fluid level may be too low. Observe
additional warning messages in the multi-
function display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immedi-
ately. This work should be carried out at a
qualified specialist workshop.
! Vehicles with 4MATIC: function or per-
formance tests may only be carried out on
a 2-axle dynamometer. If you are planning
to have the vehicle tested on such a dyna-
mometer, contact an authorized Mercedes-
Benz Center to obtain further information
first. Otherwise, you could damage the
drive train or the brake system.
! Vehicles with 4MATIC: as the ESP
tem operates automatically, the engine and
the ignition must be switched off (Smart-
Key in position 0 or 1 in the ignition lock or
Start/Stop button in position 0 or 1) while
the parking brake is being tested on a brake
dynamometer.
Braking maneuvers triggered automatically
®
by ESP may seriously damage the brake
system.
! Vehicles with 4MATIC: as the ESP
tem 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:
testing the parking brake on a brake
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dynamometer.
you intend to have the vehicle towed with
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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 quali-
fied specialist workshop. Consult a qualified
specialist workshop to arrange this.
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. To do
so, press firmly on the brake pedal when driv-
ing at a high speed. This improves the grip of
the brake pads.
You can find a description of Brake Assist
(BAS) at ( page 72) or of BAS PLUS with
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Intersection Assist at (
The braking characteristics of the vehicle can
be seriously impaired if:
brake pads other than those recommended
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are installed
the recommended brake fluid is not used
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Safe braking can no longer be guaranteed.
®
sys-
Driving tips
®
sys-
page 72).
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