MERCEDES-BENZ CL-Class 2008 C216 Comand Manual
Page 631 of 769
630 Practical hintsWhat 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 412).
Switch off the ignition (
page 365).
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 passenger door and switch on the ig-
nition (
page 365).
Monitor the 59indicator lamp right of the instrument cluster 
(
page 51) and the multifunction display in the instrument cluster 
(page 282) for the following:
(Continued on next page) 
Page 632 of 769
631 Practical hints
What to do if …?
Display 
Possible cause/consequence
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Front Passenger
Airbag Enabled
See Oper. Manual
With the seat unoccupied and the ignition switched on (
page 365),
the 59indicator lamp right of the instrument cluster should 
illuminate and remain illuminated, indicating that the OCS (
page 48) 
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 48), 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 633 of 769
632 Practical hintsWhat to do if …?Display 
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Next Service X
Due in ... days
Due in ... mls (km)
Service X must be carried out in ... days or 
after ... miles (kilometers) (
page 592).
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 412).
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 601) is dirty.
Clean the front and rear bumper (
page 601).
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 
radar sensor system* is temporarily inop-
erative 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.
Park Assist
Inoperative
Park Assist* is unavailable due to a mal-
function.
Contact an authorized Mercedes-Benz Center as soon as 
possible. 
Page 634 of 769
633 Practical hints
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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 601) is dirty.
Clean the front and rear bumper (
page 601).
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 635 of 769
634 Practical hintsWhat to do if …?Display 
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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 601) is dirty.
Clean the front and rear bumper (
page 601).
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 601)
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 601).
or
Restart the engine.
or
Contact an authorized Mercedes-Benz Center. 
Page 636 of 769
635 Practical hints
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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 
possible.
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 302).
Switch on the radar sensors* using the instrument cluster 
control system.
Service X
Due
Your vehicle is due for maintenance service 
(page 592).
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).
Have the maintenance service carried out by an authorized 
Mercedes-Benz Center as soon as possible.
!
Failure to have the vehicle maintained in ac-
cordance with the Maintenance Booklet and 
maintenance service indicator at the designated 
times/mileage will result in vehicle damage not 
covered by the Mercedes-Benz Limited 
Warranty. For more information, see “Mainte-
nance” (
page 592). 
Page 637 of 769
636 Practical hintsWhat to do if …?Display 
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Shift to P or N
to Start Engine
You have attempted to start the engine 
while the automatic transmission was set to 
reverse gearR or drive positionD.
Shift the automatic transmission to park position P or neutral 
positionN (
page 417).
Tire Pressure Monitor
Inoperative
The Advanced TPMS or a wheel sensor is 
malfunctioning.
Have the Advanced TPMS checked by an authorized 
Mercedes-Benz Center.
Tire Pressure Monitor
Inoperative
No Wheel Sensors
The Advanced TPMS is deactivated because 
wheels without proper sensors were in-
stalled.
Have the wheel sensors installed by an authorized 
Mercedes-Benz Center.
As soon as all wheels with sensors have been mounted, the 
Advanced TPMS is switched back on after driving for several 
minutes. 
Page 638 of 769
637 Practical hints
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Tire Pressure Monitor
Currently Unavailable
The Advanced TPMS is unable to monitor 
the tire inflation pressure due to:
a nearby radio interference source
the on-board voltage is too low
excessive wheel sensor temperatures
As soon as the causes for the malfunction are no longer present, 
the Advanced TPMS automatically becomes active again after a 
few minutes driving.
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.
Follow recommended tire inflation pres-
sures.
Do not underinflate tires. Underinflated tires 
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are 
more likely to fail from being overheated. Do 
not overinflate tires. Overinflated tires can 
adversely affect handling and ride comfort, 
wear unevenly, increase stopping distance, 
and result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes 
etc. 
Page 639 of 769
638 Practical hintsWhat to do if …?Display 
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Tire Pressures
Displayed After Driving
a Few Minutes
The tire inflation pressure is being 
checked.
Drive the vehicle for a few minutes.
Service Required
Do Not Shift Gears
The automatic transmission cannot be 
shifted out of the set position because of a 
malfunction.
If the automatic transmission is shift to drive positionD 
(page 417):
Without changing the automatic transmission from drive 
positionD, drive to an authorized Mercedes-Benz Center.
If the automatic transmission is shift to neutral positionN, re-
verse gear R or park positionP:
Do not drive.
Consult an authorized Mercedes-Benz Center. 
Page 640 of 769
639 Practical hints
What to do if …?
Symbol messagesDisplay 
Possible cause/consequence
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Malfunction
Stop Vehicle!
You have started driving although the vehi-
cle level is still too low.
The vehicle is raised. The ABC message 
goes out after a few seconds.
Stop your vehicle as soon as it is safe to do 
so.
Engage the electronic parking brake 
(page 412).
Wait until the message disappears from the 
multifunction display.
You may then drive off.
The vehicle is losing oil.
The ABC message is continuously shown.
Stop your vehicle as soon as it is safe to do 
so.
Engage the electronic parking brake 
(page 412).
Call Roadside Assistance.
Notify an authorized Mercedes-Benz Center.