Page 651 of 801
650 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Front Passenger
Airbag Disabled
See Oper. Manual
With the seat unoccupied and the ignition switched on (
page 370),
the 59indicator lamp right of the instrument cluster should
illuminate and remain illuminated, indicating that the OCS (
page 47)
has deactivated the air bag.
the message “Front Passenger Airbag Enabled See Oper. Manual” or the
message “Front Passenger Airbag Disabled See Oper. Manual” should not
appear in the multifunction display at any time the seat is unoccupied.
Wait at least 60 seconds for the system to complete the necessary check
cycles and to make sure neither message appears in the multifunction dis-
play.
If above conditions are met, you can occupy the front passenger seat again.
Depending on the front passenger classification sensed by the OCS
(
page 47), the59indicator lamp will remain illuminated or go
out.
If above conditions are not met, the system is not working properly. Have the
system checked as soon as possible by an authorized Mercedes-Benz Center.
Warning!
G
If the 59indicator lamp re-
mains illuminated with an adult occupant on
the front passenger seat even after
performing the above corrective steps, do
not have any passenger use the front pas-
senger seat until the system has been re-
paired.
Page 652 of 801
651 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Front Passenger
Airbag Enabled
See Oper. Manual
Front passenger front air bag is
activated while driving even
though a child, small individual,
or object below the system’s
weight threshold is on the front
passenger seat, or the front pas-
senger seat is empty. Objects
on the seat or forces acting on
the seat may make the system
sense supplemental weight.
Stop the vehicle in a safe location as soon as possible and check the front
passenger seat for the following:
Engage the electronic parking brake (
page 422).
Switch off the ignition (
page 370).
Remove child and child restraint from front passenger seat and properly
secure the child in rear seat employing the child restraint if necessary.
Remove any other items from on and around the front passenger seat and
make sure the storage bag on the back of the front passenger seat is emp-
ty.
Make sure that no objects which apply forces to the seat are present (e.g.
objects such as books, briefcases etc. lodged behind or around the seat,
head restraints pushing against roof etc.). The system may recognize such
forces as supplemental weight and sense that an occupant on the front
passenger seat is of a greater weight than actually present.
Keep the seat unoccupied, close the front passenger door and switch on
the ignition (
page 370).
Monitor the 59indicator lamp right of the instrument cluster
(
page 51) and the multifunction display in the instrument cluster
(page 287) for the following:
(Continued on next page)
Page 653 of 801
652 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Front Passenger
Airbag Enabled
See Oper. Manual
With the seat unoccupied and the ignition switched on (
page 370),
the 59indicator lamp right of the instrument cluster should
illuminate and remain illuminated, indicating that the OCS (
page 47)
has deactivated the air bag.
the message “Front Passenger Airbag Enabled See Oper. Manual” or the
message “Front Passenger Airbag Disabled See Oper. Manual” should not
appear in the multifunction display at any time the seat is unoccupied.
Wait at last 60 seconds for the system to complete the necessary check
cycles and to make sure neither message appears in the multifunction dis-
play.
If above conditions are met, you can occupy the front passenger seat again.
Depending on the front passenger classification sensed by the OCS
(
page 47), the 59indicator lamp will remain illuminated or go
out.
If above conditions are not met, the system is not working properly. Have the
system checked as soon as possible by an authorized Mercedes-Benz Center.
Warning!
G
If the 59indicator lamp re-
mains illuminated with an adult occupant on
the front passenger seat even after
performing the above corrective steps, do
not have any passenger use the front pas-
senger seat until the system has been re-
paired.
Page 657 of 801
656 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Parking Guidance
Finished
Advanced Parking Guidance* The vehicle is
in the end position.
The display message disappears automatically.
PRE-SAFE
Inoperative
See Oper. Manual
PRE-SAFE
® itself has failed. All other occu-
pant safety systems, such as the air bags,
are still available.
Contact an authorized Mercedes-Benz Center as soon as pos-
sible.
Radar Sensors
Deactivated
See Oper. Manual
You attempt to activate DISTRONIC Plus*,
Park Assist* or PRE-SAFE
® Brake* even
though you have switched off the radar sen-
sors* on the vehicle.
Check if the radar sensors* may be switched on (
page 307).
Switch on the radar sensors* using the instrument cluster
control system.
Service X
Due
Service X must be carried out (
page 612).
Have the maintenance service carried out by an authorized
Mercedes-Benz Center.
Service X Exceeded
by X days
by XXX mls (km)
Service X must be carried within the next ...
or before you have driven ... miles (kilome-
ters) (
page 612).
Have the maintenance service carried out by an authorized
Mercedes-Benz Center as soon as possible.
Page 674 of 801
673 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Turn On the Ignition
to Release the
Parking Brake
The yellow indicator lamp for the electronic
parking brake comes on.
You have tried to release the electronic
parking brake, but the ignition was not
switched on.
Switch on the ignition (
page 370).
(USA only)(Canada only)
Inoperative
See Oper. Manual
ESP
® as well as PRE-SAFE
® are switched off
due to a malfunction. In addition, the v
warning lamp in the instrument cluster
comes on.
The ABS may not be operational and the fol-
lowing systems are not available:
BAS and BAS Plus*
PRE-SAFE
® Brake*
Distronic Plus*
Cruise control
Hill start assist system
Continue driving with added caution.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the
risk of an accident.
Page 675 of 801
674 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Inoperative
See Oper. Manual
S 600 and S 65 AMG only:
ESP
® a s w e l l a s P R E - S A F E
® are switched off
due to a malfunction. In addition, the v
and ; (USA only) or 3(Canada only)
warning lamps come on in the instrument
cluster.
Brake force assistance is impaired and is
sustained through an electric substitute
function as long as the engine is running.
The brake system continues to function
normally. You will feel a pulsating effect at
the brake pedal while braking.
BAS Plus* and PRE-SAFE® Brake* are also
not available.
Continue driving with added caution.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases the
risk of an accident.
Page 681 of 801
680 Practical hintsWhat to do if …?
During severe operating conditions,
e.g. stop-and-go traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display
Possible cause/consequence
Possible solution
Coolant Low
Stop Vehicle
Turn Engine Off
The coolant is too hot.
Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.
Engage the electronic parking brake
(page 422).
Only start the engine again after the message
disappears. You could otherwise damage the
engine.
Observe the coolant temperature gauge in
the instrument cluster (
page 28).
Warning!
G
Driving when your engine is overheated
can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously
burned.
Steam from an overheated engine can
cause serious burns which can occur
just by opening the engine hood. Stay
away from the engine if you see or hear
steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of
the vehicle and do not stand near the vehicle
until the engine has cooled down.
!
The engine should not be operated with the
coolant temperature above 248°F (120°C). Do-
ing so may cause serious engine damage which
is not covered by the Mercedes-Benz Limited
Warranty.
Page 682 of 801
681 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Coolant Low
Stop Vehicle
Turn Engine Off
The poly-V-belt could be broken.
Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.
Engage the electronic parking brake
(page 422).
Check the poly-V-belt.
If it is broken:
Do not continue to drive. Otherwise the en-
gine will overheat due to an inoperative water
pump which may result in damage to the en-
gine.
Notify an authorized Mercedes-Benz Center.
If it is intact:
Do not continue to drive the vehicle with this
message displayed. Doing so could result in
serious engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Observe the coolant temperature gauge in
the instrument cluster (
page 28).
(Continued on next page)
