Page 368 of 473
367 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
T
Reduced
brake effect
Depress brake
pedal fully!
The electro-hydraulic brake system
is in emergency operation mode.
Considerably greater brake pedal
force is required and the stopping
distance is increased.
The maximum speed is limited to
55 mph (90 km/h).
Stop the vehicle in a safe location or as soon
as it is safe to do so.
Apply the parking brake (
page 61).
Do not drive any further.
Prevent the vehicle from rolling away by
blocking the wheels with wheel chocks or oth-
er sizable objects.
Contact an authorized Mercedes-Benz Center
or call for Roadside Assistance (
page 247).
Warning!
G
Driving while this message is displayed can
result in an accident. Have your brake sys-
tem checked immediately.
If the electro-hydraulic brake system enters
its emergency operation mode, the driver
must apply significantly greater brake pedal
pressure and depress the pedal much fur-
ther than normal to obtain braking effect.
If necessary, apply full pressure to the brake
pedal. Brakes are only applied to the front
wheels. Stopping distance is increased!
If there is a malfunction in the
electro-hydraulic brake system, we recom-
mend that the vehicle be transported with
all wheels off the ground using flatbed or ap-
propriate wheel lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 421).
Page 369 of 473
368 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
USA only:;Canada only:3
Reduced
brake effect
Visit
workshop
The electro-hydraulic brake system
is in emergency operation mode.
Considerably greater brake pedal
force is required and the stopping
distance is increased.
Stop the vehicle in a safe location or as soon
as it is safe to do so.
Apply the parking brake (
page 61).
Do not drive any further.
Prevent the vehicle from rolling away by
blocking the wheels with wheel chocks or oth-
er sizable objects.
Contact an authorized Mercedes-Benz Center
or call for Roadside Assistance (
page 247).
Warning!
G
Driving while this message is displayed can
result in an accident. Have your brake sys-
tem checked immediately.
If the electro-hydraulic brake system enters
its emergency operation mode, the driver
must apply significantly greater brake pedal
pressure and depress the pedal much fur-
ther than normal to obtain braking effect.
If necessary, apply full pressure to the brake
pedal. Brakes are only applied to the front
wheels. Stopping distance is increased!
If there is a malfunction in the
electro-hydraulic brake system, we recom-
mend that the vehicle be transported with
all wheels off the ground using flatbed or ap-
propriate wheel lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 421).
Page 370 of 473
369 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
USA only:;Canada only:3
Check
brake fluid level
There is insufficient brake fluid in
the reservoir.
Risk of accident!
Stop the vehicle in a safe location or as soon
as it is safe to do so.
Do not drive any further.
Contact an authorized Mercedes-Benz
Center.
Do not add brake fluid! This will not solve the
problem.
Warning!
G
Driving with the message
Check brake
fluid level
displayed can result in an ac-
cident. Have your brake system checked im-
mediately. Do not add brake fluid before
checking the brake system. Overfilling the
brake fluid reservoir can result in spilling
brake fluid on hot engine parts and the
brake fluid catching fire. You can be serious-
ly burned.
!
If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum mark or
below, have the brake system checked for brake
pad thickness and leaks.
Page 371 of 473
370 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
USA only:;Canada only:3
Service brake
Visit
workshop
There are malfunctions, but the
electro-hydraulic brake system is
operating normally.
Contact an authorized Mercedes-Benz Center
as soon as possible.
Brakes overheated
Drive on, but with
even greater care
The brake system is overheated due
to an excessive load on the brakes.
Relieve the load on the brake system:
Drive more smoothly and think ahead to
avoid unnecessary braking.
When driving down steep grades, shift into
a lower gear to use the engine’s braking
power (
page 174).
Cautiously continue driving so that the air
stream will cool down the brakes.
USA only:;Canada only:!
Release
parking brake
You are driving with the parking
brake set.
Release the parking brake (
page 61).
Page 381 of 473
380 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
F
Key
still
in vehicle
A SmartKey with KEYLESS-GO* left
in the vehicle was recognized while
locking the vehicle from the out-
side.
Take the SmartKey with KEYLESS-GO* out of
the vehicle.
.
3rd brake lamp
The high mounted brake lamp is
malfunctioning.
Contact an authorized Mercedes-Benz Center
as soon as possible.
AUTO light
inoperative
The light sensor is malfunctioning.
The headlamps switch on automati-
cally.
In the control system, set lamp operation to
manual mode (
page 159).
Switch on headlamps using the exterior lamp
switch.
Contact an authorized Mercedes-Benz Center
as soon as possible.
Brake lamp
left
Auxiliary bulb on
The left brake lamp is malfunction-
ing. An auxiliary bulb has been
brought into use.
Contact an authorized Mercedes-Benz Center
as soon as possible.
Brake lamp
Right
Substitute
bulb on
The right brake lamp is malfunction-
ing. A substitute bulb has been
brought into use.
Contact an authorized Mercedes-Benz Center
as soon as possible.
Front foglamp
left
The left front fog lamp or left cor-
ner-illuminating front fog lamp is
malfunctioning.
Contact an authorized Mercedes-Benz Center
as soon as possible.
Page 386 of 473
385 Practical hints
What to do if …
Left display
Right display
Possible cause/consequence
Possible solution
H
Please correct
the tire pressure
The tire inflation pressure is too
low in one or more tires.
Check and correct tire inflation pressure as required
(page 292).
Tire pressure
Caution
Tire defect
One or more tires are deflating.
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
If necessary, change the wheel (
page 405).
Caution
Tire defect
Vehicles with Advanced TPMS*:
One or more tires are deflating.
The respective tire is indicated in
the multifunction display.
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
If necessary, change the wheel (
page 405).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
Page 387 of 473
386 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
H
Tire pressure
Check tires
The tire pressure in one or more
tires is already below the mini-
mum value.
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
Check and adjust tire pressure as required.
If necessary, change the wheel.
Check tires
Vehicles with Advanced TPMS*:
The tire pressure in one or more
tires is already below the mini-
mum value.
The respective tire is indicated in
the multifunction display.
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.
Check and adjust tire pressure as required.
If necessary, change the wheel.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
Page 389 of 473
388 Practical hintsWhere will I find ...?First aid kit
The first aid kit is located in storage com-
partment under the passenger seat.
1Handle
2Lid
Pull handle 1 up.
Fold lid 2 down.
You can now remove the first-aid kit.
Vehicle tool kit, jack, and spare wheel
The vehicle tool kit, jack, and spare wheel
are stored in the space underneath the
trunk floor.
Lift up the trunk floor cover.
You can now remove the tools and ac-
cessories.
The vehicle tool kit includes
One pair of universal pliers
Two open-end wrenches
One hex-socket wrench
One interchangeable slot/Phillips
screwdriver
One towing eye bolt
One alignment bolt
One fuse extractor
One fuse chart
Spare fuses
i
Check expiration dates and contents for
completeness at least once a year and replace
missing/expired items.
Warning!
G
The jack is designed exclusively for jacking
up the vehicle at the jack tubes built into
both sides of the vehicle. To help avoid per-
sonal injury, use the jack only to lift the ve-
hicle during a wheel change. Never get
beneath the vehicle while it is supported by
the jack. Keep hands and feet away from the
area under the lifted vehicle. Always firmly
set parking brake and block wheels before
raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use, es-
pecially on hills. Always try to use the jack
on a hard level surface. Be sure that the jack
arm is fully inserted in the jack tube. Always
lower the vehicle onto sufficient capacity
jackstands before working under the vehi-
cle.
