Page 370 of 506
369 Practical hints
What to do if …?
Display
Display messages
Possible cause
Possible solution
Front passenger
airbag
activated
see Oper.’s Man.
Front passenger front air bag is activated 
while driving even though a child, small in-
dividual, or object below the system's 
weight threshold is on the front passenger 
seat, or the front passenger seat is empty. 
Objects on the seat or forces acting on 
the seat may make the system sense sup-
plemental weight.
Stop the vehicle in a safe location as soon 
as possible and check the following:
Make sure that there is nothing be-
tween seat cushion and child seat and 
check installation of the child seat.
Make sure that no objects applying 
supplemental weight onto the seat are 
present. The system may recognize 
such supplemental weight and sense 
that an occupant on the front passen-
ger seat is of a heavier weight than ac-
tually present.
(Continued on next page) 
     
        
        Page 371 of 506

370 Practical hintsWhat to do if …?Display
Display messages
Possible cause
Possible solution
Front passenger
airbag
activated
see Oper.’s Man.
If performing any of the above corrective 
steps is successful, the message 
Front 
passenger airbag deactivated see 
Oper.’s Man. 
will appear in the 
multifunction display, confirming the situ-
ation has been remedied. Note that after 
performing the corrective steps, it may 
take up to 60 seconds for the message 
Front passenger airbag deactivated 
see Oper.’s Man. 
to appear.
If the message 
Front passenger airbag 
activated see Oper.’s Man. 
remains on 
in the multifunction display and/or the 
56
 indicator lamp remains out even 
after performing the above corrective 
steps, have the system checked as soon 
as possible by an authorized 
Mercedes-Benz Center.
Warning!
G
If the message 
Front passenger airbag 
activated see Oper.’s Man. 
remains 
on in the multifunction display and/or the 
56 indicator lamp remains out even 
after performing the above corrective steps, 
do not have any children12 years old and 
under and other small individuals use the 
front passenger seat until the system has 
been repaired. 
     
        
        Page 372 of 506

371 Practical hints
What to do if …?
Display
Display messages
Possible cause
Possible solution
Front passenger
airbag
deactivated
see Oper.’s Man.
Front passenger front air bag is deactivat-
ed while driving even though an adult or 
someone larger than a small individual is 
occupying the front passenger seat. Forc-
es acting on the seat may make the sys-
tem sense a decrease in weight.
Stop the vehicle in a safe location as soon 
as possible and check the following:
Do not lean on armrests or lift yourself 
up using handle over the door. This 
may make the system sense that an 
occupant of a lesser weight than actu-
ally present is on the front passenger 
seat.
Re-position yourself.
Sit properly belted in a nearly upright 
position with your back against the 
seat backrest.
If performing any of the above corrective 
steps is successful, the message 
Front 
passenger airbag activated see 
Oper.’s Man. 
will appear in the 
multifunction display, confirming the situ-
ation has been remedied.
(Continued on next page) 
     
        
        Page 373 of 506

372 Practical hintsWhat to do if …?Display
Display messages
Possible cause
Possible solution
Front passenger
airbag
deactivated
see Oper.’s Man.
Note that after performing the corrective 
steps, it may take up to 60 seconds for 
the message 
Front passenger airbag 
activated see Oper.’s Man. 
to appear.
If the message 
Front passenger airbag 
deactivated see Oper.’s Man. 
remains 
on in the multifunction display and/or the 
56
 indicator lamp remains on even 
after performing the above corrective 
steps, have the system checked as soon 
as possible by an authorized 
Mercedes-Benz Center.
Do not have any passenger use the front 
passenger seat until the system has been 
repaired.
Warning!
G
If the message 
Front passenger airbag 
deactivated see Oper.’s Man. 
re-
mains on in the multifunction display and/or
the 56 indicator lamp remains illumi-
nated even after performing the above cor-
rective steps, do not have any passenger 
use the front passenger seat until the sys-
tem has been repaired.