Page 649 of 801
648 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Door Open
Vehicle Not in Park
You have opened the driver’s
door and the automatic trans-
mission is still in drive position
D, reverse gearR or neutral
positionN.
Before you leave the vehicle, make sure that the automatic transmission
is shift to park position P (
page 426) and that the electronic parking
brake is engaged (
page 422).
Page 650 of 801

649 Practical hints
What to do if …?
Front Passenger
Airbag Disabled
See Oper. Manual
Front passenger front air bag is
deactivated while driving even
though an adult or someone
larger than a small individual is
occupying the front passenger
seat. Forces acting on the seat
may make the system sense a
decrease in 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).
Have the front passenger vacate the seat and exit the vehicle.
Adjust the seat in a height position (
page 373).
Make sure that no objects which apply forces to the seat are present (e.g.
objects such as books, briefcases etc. lodged underneath, behind or
around the seat). Such forces may cause the system to sense that an oc-
cupant of a lesser weight than actually present is on the front passenger
seat.
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)
Display
Possible cause/consequence
Possible solution
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 654 of 801

653 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Next Service X
Due in ... days
Due in ... mls (km)
Service X must be carried out in ... days or
after ... miles (kilometers) (
page 612).
Have the maintenance service carried out by an authorized
Mercedes-Benz Center.
Only Shift to
Position 'P' When
Vehicle Is Stationary
You have tried to shift the automatic trans-
mission to park positionP using the gear
selector lever although the vehicle is still in
motion.
Stop your vehicle as soon as it is safe to do so.
Shift the automatic transmission to park positionP.
Engage the electronic parking brake (
page 422).
Park Assist
Currently Unavailable
See Oper. Manual
Park Assist* is deactivated because the
area around the sensors* in the front or the
rear bumper (
page 620) is dirty.
Clean the front and rear bumper (
page 620).
Park Assist* is deactivated because the
battery voltage is insufficient.
Have the battery checked by an authorized Mercedes-Benz
Center.
Park Assist* is switched off because the ra-
dar sensor system* is temporarily inopera-
tive due to electromagnetic interference
near television and radio transmitter sta-
tions, toll stations, speed measuring sys-
tems, etc.
Wait until the message in the multifunction display disappears.
Park Assist
Inoperative
Park Assist* is unavailable due to a mal-
function.
Contact an authorized Mercedes-Benz Center as soon as pos-
sible.
Page 655 of 801
654 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Blind Spot Assist
Currently Unavailable
See Oper. Manual
Blind Spot Assist* is deactivated because
the area around the sensors* in the front
or the rear bumper (
page 620) is dirty.
Clean the front and rear bumper (
page 620).
Blind Spot Assist* is deactivated because
the battery voltage is insufficient.
Have the battery checked by an authorized Mercedes-Benz
Center.
Blind Spot Assist* is switched off because
the radar sensor system* is temporarily in-
operative due to electromagnetic interfer-
ence near television and radio transmitter
stations, toll stations, speed measuring
systems, etc.
Wait until the message in the multifunction display disappears.
Blind Spot Assist
Inoperative
Blind Spot Assist* is unavailable due to a
malfunction.
Contact an authorized Mercedes-Benz Center as soon as
possible.
Page 656 of 801

655 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Parking Guidance
Currently Unavailable
See Oper. Manual
Advanced Parking Guidance* is deactivat-
ed because the area around the sensors*
in the front or the rear bumper
(page 620) is dirty.
Clean the front and rear bumper (
page 620).
Advanced Parking Guidance* is deactivat-
ed because the battery voltage is insuffi-
cient.
Have the battery checked by an authorized Mercedes-Benz
Center.
Advanced Parking Guidance* is switched
off because the radar sensor system* is
temporarily inoperative due to electromag-
netic interference near television and radio
transmitter stations, toll stations, speed
measuring systems, etc.
Wait to see if the interference is temporary or do not use Ad-
vanced Parking Guidance*. Try in a location where the inter-
fering transmission might not be present.
Parking Guidance
Canceled
Advanced Parking Guidance* has been
canceled because:
the vehicle is sliding
the bumper became dirty in the area of
the sensors (
page 620)
there has been a malfunction
Use Advanced Parking Guidance* again later.
If the parking space symbol is not shown in the multi-function dis-
play at a speed below 10 mph (16 km/h):
Clean the bumpers (
page 620).
or
Restart the engine.
or
Contact an authorized Mercedes-Benz Center.