MERCEDES-BENZ CLS550 2007 W219 Owner's Manual

360 Practical hintsWhat to do if …Display message
Possible cause/consequence
Possible solution
Distronic
currently unavailable
See Operator’s Manual
Distronic* is switched off and is tempo-
rarily unavailable.
Distronic* is deactivated if:

the Distronic* cover in the radiator
grille is dirty


its function is impaired by heavy pre-
cipitation or fog

If necessary, clean the Distronic* cover in the
area of the radiator grille (
page 336).

Restart the vehicle.
or
Distronic* becomes operational again without the
engine being restarted when:


dirt on the radiator grille has fallen off while
driving (e.g. slush or snow)


the system recognizes full sensor availability
(due to lessening rain or the road surface dry-
ing)


the message in the multifunction display disap-
pears


the speed last stored flashes in the display for
5 seconds.
You can operate Distronic* as usual again.

361 Practical hints
What to do if …
Display message
Possible cause/consequence
Possible solution
Distronic
currently unavailable
See Operator’s Manual
Distronic* is deactivated because the
functionality is impaired by external in-
terferences, e.g. high-frequency sources
such as too stations, speed measuring
systems etc.

Leave the area of the external interference.

Activate Distronic* again (
page 223) when
the message
DISTRONIC available
again ap-
pears.
Distronic* is deactivated because the
Distronic* sensor has not sensed any
other vehicles or objects, e.g. road sign
or such, for a long time.

Activate Distronic* again (
page 223) when
the message
DISTRONIC available
again ap-
pears.
ESP
inoperative
See Operator’s Man.
The ESP
® as well as BAS and PRE-SAFE
®
have detected a malfunction and
switched off.
The ABS may not be operational.
The brake system is still functioning nor-
mally but without the ABS, BAS, ESP
®
and PRE-SAFE
® 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.
!
When synchronizing the ESP
®, make sure
you can turn the steering wheel in both direc-
tions as far as it will go without the wheels hitting
any objects, e.g. a road curb.

362 Practical hintsWhat to do if …Display message
Possible cause/conse-
quence
Possible solution
(USA only)Front passenger
airbag enabled
See Operator’s 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
passenger seat is empty. Ob-
jects on the seat or forces act-
ing 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:
Apply the parking brake.

Switch off the ignition (
page 38).

Open the front passenger door.

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 pocket on the back of the front pas-
senger seat is empty.

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 turn
on the ignition (
page 38).
(Continued on next page)

363 Practical hints
What to do if …
Display message
Possible cause/con-
sequence
Possible solutionMonitor the 75 indicator lamp on the center console (
page 29) and
the multifunction display in the instrument cluster (
page 27) for the following:
With the seat unoccupied and the ignition turned on,


the 75 indicator lamp on the center console should illuminate and
remain illuminated, indicating that the OCS (
page 71) has deactivated the
front passenger front air bag.


the message
Front passenger airbag enabled See Operator’s Manual
or the
message
Front passenger airbag disabled See Operator’s 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 display.
If above conditions are met, you can occupy the front passenger seat again. De-
pending on the front passenger classification sensed by the OCS (
page 71), the
75 indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working properly. Have the sys-
tem checked as soon as possible by an authorized Mercedes-Benz Center.
Warning!
G
If the 75indicator lamp
remains out even after performing the above
corrective steps, do not have any children
12 years old and under and other small
individuals use the front passenger seat un-
til the system has been repaired.

364 Practical hintsWhat to do if …Display message
Possible cause/conse-
quence
Possible solution
(USA only)Front passenger
airbag disabled
See Operator’s 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:
Switch off the ignition (
page 60).

Have the front passenger vacate the seat and exit the vehicle.

Adjust the seat in a height position (
page 42).

Make sure that no objects which apply forces to the seat are
present (e.g. objects such as books, briefcases etc. lodged under-
neath, behind or around the seat). Such forces may cause the sys-
tem to sense that an occupant of a lesser weight than actually
present is on the front passenger seat.

Keep the seat unoccupied, close the front passenger door and turn
on the ignition (
page 38).
(Continued on next page)

365 Practical hints
What to do if …
Display message
Possible cause/con-
sequence
Possible solutionMonitor the 75 indicator lamp on the center console (
page 29) and
the multifunction display in the instrument cluster (
page 26) for the following:
With the seat unoccupied and the ignition turned on,


the 75 indicator lamp on the center console should illuminate and
remain illuminated, indicating that the OCS (
page 71) has deactivated the
front passenger front air bag.


the message
Front passenger airbag enabled See Operator’s Manual
or the
message
Front passenger airbag disabled See Operator’s 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 display.
If above conditions are met, you can occupy the front passenger seat again. De-
pending on the front passenger classification sensed by the OCS (
page 71), the
75 indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working properly. Have the sys-
tem checked as soon as possible by an authorized Mercedes-Benz Center.
Warning!
G
If the 75 indicator lamp
remains illuminated with an adult occupant
on the front passenger seat even after per-
forming the above corrective steps,
do not have any passenger use the front
passenger seat until the system has been
repaired.

366 Practical hintsWhat to do if …Display message
Possible cause/consequence
Possible solution
P
Gear selector lever
in Park position
You have tried to start the engine
with the KEYLESS-GO* start/stop
button with the gear selector lever
not in positionP.

Place the gear selector lever in positionP.
You have tried to turn off the engine
with the KEYLESS-GO* start/stop
button with the gear selector lever
not in positionP.
P/N
Shift gear select. lever
to Neutral or Park
You have tried to start the engine
with the KEYLESS-GO* start/stop
button while the gear selector lever
was in positionR orD.

Place the gear selector lever in positionP
orN. Make sure the brake pedal is depressed.
PRE-SAFE
inoperative
See Operator’s Man.
PRE-SAFE
® itself has failed. All other
occupant safety systems, such as
the air bags, are still available.

Contact an authorized Mercedes-Benz Center
as soon as possible.

367 Practical hints
What to do if …
Display message
Possible cause/consequence
Possible solution
Run Flat Indicator
inactive
Canada only:
Run Flat Indicator is malfunctioning.

Have the Run Flat Indicator checked by an au-
thorized Mercedes-Benz Center.
Check tires
Then reactivate
Run Flat Indicator
Canada only:
There was a warning message about
a loss in the tire inflation pressure
and the Run Flat Indicator has not
been reactivated yet.

Make sure that the correct tire inflation pres-
sure is set for each tire.

Then reactivate the Run Flat Indicator.
Run Flat Indicator
unavailable
Canada only:
The Run Flat Indicator* has been
switched off due to an error.

Have the Run Flat Indicator checked by an
authorized Mercedes-Benz Center.
Tire pressure
Check tires
Canada only:
The Run Flat Indicator indicates that
the pressure is too low in one or
more tires.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers. Ob-
serve the traffic situation around you.

Check and adjust tire inflation pressure as
required (
page 302).

If necessary, change the wheel (
page 412).

Reactivate the Run Flat Indicator after adjust-
ing the tire inflation pressure values
(page 305).

368 Practical hintsWhat to do if …Display message
Possible cause/consequence
Possible solution
Tire pressure

displayed only
after driving a
few minutes
Vehicles with Advanced TPMS*:
The tire inflation pressure is being
checked.

Drive the vehicle for a few minutes.
Tire pres. monitor
currently unavailable
The TPMS or Advanced TPMS* is un-
able to monitor the tire pressure due
to

a nearby radio interference
source


excessive wheel sensor temper-
atures

As soon as the causes for the malfunction are
no longer present, the Advanced TPMS* auto-
matically becomes active again after a few
minutes driving.
Tire pres. monitor
inoperative
The TPMS or Advanced TPMS* is
malfunctioning.

Have the TPMS or Advanced TPMS* checked
by an authorized Mercedes-Benz Center.

369 Practical hints
What to do if …
Display message
Possible cause/consequence
Possible solution
Tire pres. monitor
inoperative
No wheel sensors
There are wheels without appropri-
ate wheel sensors mounted (e.g.
winter tires).

Have the TPMS or Advanced TPMS* checked
by an authorized Mercedes-Benz Center.

Have the wheel sensors installed by an
authorized Mercedes-Benz Center.
Tire pres. monitor
Wheel sensor missing


One or more sensors malfunc-
tion (e.g. battery is empty).


One or more wheels without ap-
propriate wheel sensors mount-
ed (e.g. spare tire).
The tire inflation pressure for the re-
spective tire is not shown in the mul-
tifunction display.

Have the TPMS or Advanced TPMS* checked
by an authorized Mercedes-Benz Center.

Have the wheel sensors installed by an
authorized Mercedes-Benz Center.
Vehicles with Advanced TPMS*:
The tire pressure for the respective tire is
shown in the multifunction display.