Servicing the brakes
If the red brake warning lamp lights up in
the instrument cluster and you hear a
warning tone while the engine is running,
the brake fluid level may be too low.
Observe additional warning messages in
the multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked
immediately. This work should be carried
out at an authorized Mercedes-Benz
Center.
All checks and maintenance work on the brake system must be carried out at a qualified specialist workshop. This work should be carried out at an authorized Mercedes-Benz Center.
Have the brake pads replaced and the brake fluid renewed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.
WARNING
If brake pads or brake fluid other than those
recommended are used, the braking
properties of the vehicle can be degraded to
an extent that safe braking is substantially
impaired. This could result in an accident.
Vehicles with 4MATIC: function or
performance tests may only be carried out
on a 2-axle dynamometer. If you are
planning to have the vehicle tested on such
a dynamometer, 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®
system operates automatically, the engine
and the ignition must be switched off
(SmartKey in position 0 or 1 in the ignition
lock or Start/Stop button in position 0 or
1) when the electric 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®
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:
• testing the electric parking brake on a
brake dynamometer.
• you intend to have the vehicle towed with
one of the axles raised.
Braking maneuvers triggered automatically
by ESP® may seriously damage the brake
system.
If your brake system is subject only to moderate loads, you should test the functionality of your brakes at regular intervals by pressing firmly on the brake pedal at high speeds. This improves the grip of the brake pads.
WARNING
Make sure that you do not endanger other
road users when you apply the brakes.
You can find a description of Brake Assist (BAS) on or of BAS PLUS on.
See also:
Making adjustments in 1 mph (Canada: 1 km/h) increments
•► Briefly press the cruise control lever to the pressure point, up 1 for a higher speed or down 2 for a lower speed.
The last speed stored is increased or reduced. ...
Setting the temperature in the rear
compartment using the front control
panel
Turn the SmartKey to position 2 in the
ignition lock.
Activate the rear compartment
function via COMAND.
The rear-compartment climate control can
be controlled via the front control panel
...
Cleaning the sensors
•► Clean sensors 1 of the driving systems
with water, car shampoo and a soft cloth.
When cleaning the sensors with a power
washer, maintain a distance between the
vehicle and the nozzle ...