2007 MERCEDES-BENZ S550 page

568 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Tire pressure
Check tires
The pressure has fallen significantly in one
or more tires.

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

Check and adjust tire inflation pressure as required
(page 511).

If necessary, change the wheel (
page 629).

Restart the Run Flat Indicator* after adjusting the tire infla-
tion pressure values (
page 516).
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 be-
cause wheels without proper sensors were
installed.

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 sever-
al minutes.
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.

574 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Brake immediately
A malfunction has occurred while DISTRON-
IC Plus* was switched on.

While observing surrounding traffic condi-
tions and when it is safe, immediately de-
press the brake pedal firmly until the warning
message disappears.

Secure vehicle from rolling away before get-
ting out of it (
page 363).
(USA only)(Canada only)
EBV, ABS, ESP
inoperative
See Oper. Manual
ESP
®, EBP and ABS are switched off due to
a malfunction. BAS is also switched off. As
a result, PRE-SAFE
® is also inoperative.

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.
(USA only)(Canada only)

576 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Parking brake
See Oper. Manual
The red indicator lamp for the electric park-
ing brake is either on or off and the yellow
warning lamp for the electric parking brake
comes on.
The electric parking brake is malfunction-
ing.
To release:
Pull handle of electric parking brake
(page 364).
or

Drive off carefully (
page 364).

Visit an authorized Mercedes-Benz Center as
soon as possible.
or

Release electric parking brake mechanically
(page 616).

Visit an authorized Mercedes-Benz Center as
soon as possible.
To engage:

Switch off ignition and press handle for elec-
tric parking brake until the warning message
on the multifunction display disappears.
(USA only)(Canada only)

577 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Parking brake
See Oper. Manual
The red indicator lamp for the electric park-
ing brake flashes.
The power supply for the electric parking
brake was malfunctioning or the electric
parking brake was previously mechanically
released.

Pull handle for electric parking brake
(page 364).
or

Carefully drive off (
page 364).
or

Press handle for electric parking brake until
the warning message disappears from the
multifunction display.
(USA only)(Canada only)

578 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Parking brake
See Oper. Manual
The red indicator lamp for the electric park-
ing brake flashes and the yellow warning
lamp for the electric parking brake lights
up.
The electric parking brake is malfunction-
ing.

Switch ignition off and back on again, and en-
gage or release electric parking brake
(page 364).
or

Carefully drive off (
page 364).

Visit an authorized Mercedes-Benz Center as
soon as possible.
or

Release electric parking brake mechanically
(page 616).

Visit an authorized Mercedes-Benz Center as
soon as possible.
(USA only)(Canada only)

579 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Parking brake
See Oper. Manual
When you engage or release the electric
parking brake, the red indicator lamp for
the electric parking brake flashes for
approx.10 seconds. Afterward, it goes out
or lights up continuously. The yellow warn-
ing lamp for the electric parking brake lights
up.
The electric parking brake is malfunctioning
or overheated for example due to over- or
undervoltage.

Carefully drive off (
page 364).

Visit an authorized Mercedes-Benz Center as
soon as possible.
In the event of overvoltage or undervoltage:

Remove the cause of the overvoltage or und-
ervoltage, e.g. charge the battery or restart
the engine.

Switch ignition off and back on again, and en-
gage or release electric parking brake
(page 364).
If the electric parking brake still cannot be re-
leased:

Release electric parking brake mechanically
(page 616).

Visit an authorized Mercedes-Benz Center as
soon as possible.
(Continued on next page)
(USA only)(Canada only)

580 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Parking brake
See Oper. Manual
If overheated:
Let vehicle cool down, and do not engage
electric parking brake during this time.
or

Switch ignition off and back on again, and en-
gage or release electric parking brake.
(USA only)(Canada only)
Parking brake
inoperative
When you engage or release the electric
parking brake, the red indicator lamp for
the electric parking brake flashes and goes
out after approx. 10 seconds. The yellow
warning lamp for the electric parking brake
lights up.
The electric parking brake is malfunction-
ing.

Switch ignition off and back on again, and en-
gage electric parking brake (
page 364).
If the electric parking brake cannot be engaged:

Shift the automatic transmission to P
(page 367).

Protect vehicle from rolling away while
parked by using a chock from the vehicle tool
kit (
page 613).

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

581 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Please release
parking brake
The red indicator lamp for the electric park-
ing brake flashes and you also hear a warn-
ing tone.
You are driving with the electric parking
brake activated, or you are carrying out an
emergency brake application with the elec-
tric parking brake (
page 364).

Release electric parking brake.
or

Carefully drive off (
page 364).
or

Release the handle for electric parking brake.
(USA only)(Canada only)
Please release
parking brake
The red indicator lamp for the electric park-
ing brake flashes and the yellow warning
lamp for the electric parking brake comes
on. You also hear a warning tone.
The electric parking brake is malfunction-
ing; braking action is restricted.
While driving:
Release the handle for electric parking brake.
While at a standstill:

Switch off ignition and press handle for elec-
tric parking brake until the warning message
disappears from the multifunction display.