Page 339 of 425
338 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
•Differential
overheatedThe differential oil is too hot.Stop your vehicle immediately in a safe location.
Do not drive any further.
Apply the parking brake (page 55).
Wait until the instrument cluster display has cleared.
Otherwise you could damage the rear differential.
!The differential warning should not be
ignored. Extended driving with the symbol
displayed could result in serious rear differential
damage that is not covered by the
Mercedes-Benz Limited Warranty.
Page 340 of 425
339 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
±Visit
workshopCertain electronic systems are
unable to relay information to
the control system. The follow-
ing systems may have failed:
Coolant temperature gauge
Tachometer
Have the electronic systems checked by an authorized
Mercedes-Benz Center immediately.
Fuel system
malfunction
Visit
workshopThe fuel cooling system is
malfunctioning.Contact an authorized Mercedes-Benz Center
immediately.
:Engine oil pressure
Visit
workshopThere is no oil in the engine.
There is a danger of engine
damage.Stop your vehicle immediately in a safe location.
Switch off the engine.
Do not drive any further.
Contact an authorized Mercedes-Benz Center
immediately.
!The engine oil level warning should not be
ignored. Extended driving with the symbol
displayed could result in serious engine damage
that is not covered by the Mercedes-Benz
Limited Warranty.
Page 347 of 425

346 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
HTire pressure
Caution
Tire defectOne or more tires is deflating.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 362) or
contact Roadside Assistance. If tire cannot be tempo-
rarily repaired using TIREFIT, contact Roadside
Assistance.
Have the damaged 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) an make sure
the tires rotate in the direction specified
(
page 261). Otherwise, the driving
stability of the vehicle will be adversely
affected, especially when driving at high
speeds.
Page 348 of 425

347 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
HTire pressure
Check tiresThe tire inflation
pressure in one or
more tires is already
below the minimum
value.
The tire inflation
pressure in one or
more tires is low.Carefully bring the vehicle to a halt, avoiding abrupt steering and
braking maneuvers. Observe the traffic situation around you.
Check the tires. If no damage visible, check and correct tire
inflation pressure as required.
Temporarily repair tire using TIREFIT (page 362) or contact
Roadside Assistance. If tire cannot be temporarily repaired using
TIREFIT, contact Roadside Assistance.
Have the damaged 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) an make sure
the tires rotate in the direction specified
(
page 261). Otherwise, the driving
stability of the vehicle will be adversely
affected, especially when driving at high
speeds.
Page 349 of 425

348 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
HTire pressure, FL
Caution
Tire defectThe left front tire is
deflating.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 362) or contact
Roadside Assistance. If tire cannot be temporarily repaired using
TIREFIT, contact Roadside Assistance.
Have the damaged wheel repaired or replaced at an authorized
Mercedes-Benz Center.
Tire pressure, FL
Check tireThe left 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) an make sure
the tires rotate in the direction specified
(
page 261).
Otherwise, the driving stability of the vehicle
will be adversely affected, especially when
driving at high speeds.
Page 350 of 425

349 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
HTire pressure, FR
Caution
Tire defectThe right front tire is
deflating.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 362) or contact
Roadside Assistance. If tire cannot be temporarily repaired using
TIREFIT, contact Roadside Assistance.
Have the damaged wheel repaired or replaced at an authorized
Mercedes-Benz Center.
Tire pressure, FR
Check tireThe 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) an make sure
the tires rotate in the direction specified
(
page 261).
Otherwise, the driving stability of the vehicle
will be adversely affected, especially when
driving at high speeds.
Page 351 of 425

350 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
HTire pressure, RL
Caution
Tire defectThe left rear tire is
deflating.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 362) or contact
Roadside Assistance. If tire cannot be temporarily repaired using
TIREFIT, contact Roadside Assistance.
Have the damaged wheel repaired or replaced at an authorized
Mercedes-Benz Center.
Tire pressure, RL
Check tireThe left rear 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) an make sure
the tires rotate in the direction specified
(
page 261).
Otherwise, the driving stability of the vehicle
will be adversely affected, especially when
driving at high speeds.
Page 352 of 425

351 Practical hints
What to do if ...
Left displayRight displayPossible cause/
consequencePossible solution
HTire pressure, RR
Caution
Tire defectThe right rear tire is
deflating.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 362) or contact
Roadside Assistance. If tire cannot be temporarily repaired using
TIREFIT, contact Roadside Assistance.
Have the damaged wheel repaired or replaced at an authorized
Mercedes-Benz Center.
Tire pressure, RR
Check tireThe right rear 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) an make sure
the tires rotate in the direction specified
(
page 261).
Otherwise, the driving stability of the vehicle
will be adversely affected, especially when
driving at high speeds.