Page 334 of 417
333 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
H
Reactivate
tire press. monit.
A tire inflation pressure
warning message ap-
peared.
The tire inflation pressure in
one or more tires was in-
creased by over 0.3 bar.
Activate the tire inflation pressure monitor
(page 266).
Tire pres.
monitor
currently
inactive
The tire inflation pressure mon-
itor is temporarily unable to
monitor the tire inflation pres-
sure due to:
the presence of several
wheel sensors in the vehicle
excessive wheel sensor
temperatures
a nearby radio interference
source
unrecognized wheel sen-
sors mounted
Remove any additional wheel sensors from the vehicle,
e.g. when transporting a new set of tires.
As soon as the causes of the malfunction have been re-
moved, the tire inflation pressure monitor automatically be-
comes active again.
Page 335 of 417
334 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
H
Tire pres.
monitor
Visit
workshop!
The tire inflation pressure mon-
itor is malfunctioning or one of
the wheel sensors is malfunc-
tioning.
Have the tire inflation pressure monitor checked by an
authorized Mercedes-Benz Center.
A wheel without proper sensor
was installed.
Have the wheels checked.
Page 336 of 417
335 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
H
Tire pressure, RL
Caution
tire defect!
The left rear tire is rapidly de-
flating.
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.
Temporarily repair tire using TIREFIT (
page 349) or
contact Roadside Assistance. If tire cannot be tempo-
rarily repaired using TIREFIT, contact Roadside Assis-
tance.
Have the damaged wheel repaired or replaced at an
authorized Mercedes-Benz Center.
Tire pressure, RL
Check
tires!
The left rear tire inflation pres-
sure is low.
Carefully bring the vehicle to a halt.
Check the tires. If no damage visible, check and correct
tire inflation pressure as required.
If necessary, have the wheel repaired or replaced at an
authorized Mercedes-Benz Center.
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.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.
Warning!
G
Have worn or damaged tires replaced in
pairs (front pair or rear pair). Otherwise the
driving stability of the vehicle will be ad-
versely affected.
Page 337 of 417
336 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
H
Tire pressure, RR
Caution
tire defect!
The right rear tire is rapidly de-
flating.
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.
Temporarily repair tire using TIREFIT (
page 349) or
contact Roadside Assistance. If tire cannot be tempo-
rarily repaired using TIREFIT, contact Roadside Assis-
tance.
Have the damaged wheel repaired or replaced at an
authorized Mercedes-Benz Center.
Tire pressure, RR
Check
tires!
The right rear tire inflation pres-
sure is low.
Carefully bring the vehicle to a halt.
Check the tires. If no damage visible, check and correct
tire inflation pressure as required.
If necessary, have the wheel repaired or replaced at an
authorized Mercedes-Benz Center.
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.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.
Warning!
G
Have worn or damaged tires replaced in
pairs (front pair or rear pair). Otherwise the
driving stability of the vehicle will be ad-
versely affected.
Page 338 of 417
337 Practical hints
What to do if ...
Left display
Right display
Possible cause
Possible solution
H
Tire pressure, FL
Caution
tire defect!
The left front tire is rapidly de-
flating.
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.
Temporarily repair tire using TIREFIT (
page 349) or
contact Roadside Assistance. If tire cannot be tempo-
rarily repaired using TIREFIT, contact Roadside Assis-
tance.
Have the damaged wheel repaired or replaced at an
authorized Mercedes-Benz Center.
Tire pressure, FL
Check
tires!
The left front tire inflation pres-
sure is low.
Carefully bring the vehicle to a halt.
Check the tires. If no damage visible, check and correct
tire inflation pressure as required.
If necessary, have the wheel repaired or replaced at an
authorized Mercedes-Benz Center.
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.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.
Warning!
G
Have worn or damaged tires replaced in
pairs (front pair or rear pair). Otherwise the
driving stability of the vehicle will be ad-
versely affected.
Page 339 of 417
338 Practical hintsWhat to do if ...Left display
Right display
Possible cause
Possible solution
H
Tire pressure, FR
Caution
tire defect!
The right front tire is rapidly de-
flating.
Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.
Temporarily repair tire using TIREFIT (
page 349) or
contact Roadside Assistance. If tire cannot be tempo-
rarily repaired using TIREFIT, contact Roadside Assis-
tance.
Have the damaged wheel repaired or replaced at an
authorized Mercedes-Benz Center.
Tire pressure, FR
Check
tires!
The right front tire inflation
pressure is low.
Carefully bring the vehicle to a halt.
Check the tires. If no damage visible, check and correct
tire inflation pressure as required.
If necessary, have the wheel repaired or replaced at an
authorized Mercedes-Benz Center.
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.
Continued driving with a flat tire will cause
excessive heat build-up and possibly a fire.
Warning!
G
Have worn or damaged tires replaced in
pairs (front pair or rear pair). Otherwise the
driving stability of the vehicle will be ad-
versely affected.
Page 350 of 417
349 Practical hints
Flat tire
Flat tire
The vehicle is equipped with the TIREFIT
kit.Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.
Turn on the hazard warning flashers.
Turn the steering wheel so that the
front wheels are in a straight ahead po-
sition.
Set the parking brake.
Move the gear selector lever to P.
Turn off the engine (
page 58).
Remove the SmartKey from the starter
switch.
Open the driver’s door.
Have any passenger exit the vehicle at
a safe distance from the roadway.
Sealing tires with TIREFIT kit
Small tire punctures, particularly those in
the tread, can be sealed with TIREFIT.
TIREFIT can be used in ambient tempera-
tures down to -4°F (-20°C).
Foreign objects (e.g. screws or nails)
should not be removed from the tire.
Take TIREFIT, the sticker, and the elec-
tric air pump out of the trunk.
!A wheel change should only be carried
out at an authorized Mercedes-Benz
Center. Otherwise there is a danger of
damaging the vehicle by jacking it up
incorrectly.
iOpen door only when conditions are
safe to do so.Warning!
G
Keep TIREFIT away from sparks, open flame
or heat source.
Do not smoke.
Warning!
G
TIREFIT is a limited repair device. TIREFIT
cannot be used for cuts or punctures larger
than approximately 0.16 in (4 mm) and tire
damage caused by driving with extremely
low tire inflation pressure, or on a flat tire, or
a damaged wheel.
Do not drive the vehicle under such circum-
stances.
Contact your nearest Mercedes-Benz
Center for assistance or call Roadside
Assistance. !After using TIREFIT, the tire inflation
pressure sensor may have to be re-
placed.
Page 356 of 417
355 Practical hints
Batteries
Charging the batteries
You can obtain detailed information on
charging the battery from your authorized
Mercedes-Benz Center.
Warning!
G
The brake system requires electrical power
to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. The same applies if
battery is disconnected. To brake, the driver
must then apply significantly greater brake
pedal pressure and depress the pedal much
further to obtain the expected braking ef-
fect. If necessary, apply full pressure to the
brake pedal. Brakes are only applied to the
front wheels. Stopping distance is in-
creased! Adjust your driving style according-
ly. For more information, see “SBC brake
system” (
page 84).
Warning!
G
With a disconnected battery
you will no longer be able to turn the
SmartKey in the starter switch
the gear selector lever will remain
locked in positionP
Warning!
G
Never charge a battery while still installed in
the vehicle unless the battery charge unit
approved by Mercedes-Benz (supplied with
your vehicle) is being used. Gases may es-
cape during charging and cause explosions
that may result in paint damage, corrosion
or personal injury.
A battery charge unit specially adapted for
Mercedes-Benz vehicles and tested and ap-
proved by Mercedes-Benz is available, per-
mitting the charging of the battery in its
installed position. Contact an authorized
Mercedes-Benz Center for information and
availability. Charge battery in accordance
with the separate operating instructions for
the battery charger.
