2009 MERCEDES-BENZ SLR Owner's Manual

321 Practical hints
What to do if ...
Text messagesLeft display
Right display
Possible cause/consequence
Possible solution
ABS
ABS, ESP
Unavailable
See
Oper. Manual
Risk of accident!
The ABS and ESP
® are not available
due to a malfunction. The BAS is also
deactivated.
The system’s self-diagnosis may not
be completed yet.
The electro-hydraulic brake system
is still functioning normally but with-
out the ABS, the ESP®, and the BAS
available.

Drive a short distance with added caution at
a vehicle speed of above 12 mph
(20 km/h).
When the message disappears, the ABS, the
ESP
®, and the BAS are available again.
If the message does not disappear:

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.

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.

322 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
ABS
ABS, ESP
Inoperative
See
Oper. Manual
Risk of accident!
The ABS and ESP
® have switched off
due to a malfunction.
The BAS is also deactivated.
The electro-hydraulic brake system
is still functioning normally but with-
out the ABS, the ESP
®, and the BAS
available.

Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.

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.
––– MPH(USA only)––– Km/h(Canada only)
Cruise Control
One of the activation conditions for
cruise control has not been fulfilled.
For example, you attempted to set a
speed below 20 mph (30 km/h).

Drive faster than 20 mph (30 km/h), if the
situation allows, and set the speed.
(page 205).
The ESP
® is switched off.

Switch on the ESP
® (page 87).
Exceptions: (
page 86).

323 Practical hints
What to do if ...
Left display
Right display
Possible cause/consequence
Possible solution
ESP
ESP
Inoperative
See
Oper. Manual
Risk of accident!
The ESP
® has detected a malfunc-
tion and switched off.
The ABS may not be operational.
The electro-hydraulic brake system
is still functioning normally but with-
out the ESP® 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.
ESP
ESP Unavailable
See
Oper. Manual
Risk of accident!
The ESP
® is deactivated because the
power supply has been interrupted.
The ABS may not be operational.
The electro-hydraulic brake system
is still functioning normally but with-
out the ESP® available.

Synchronize the ESP
®. With the vehicle sta-
tionary, turn the steering wheel completely
to the left and then to the right.
If the ESP
® message does not go out:

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.

324 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
Front Passeng.
Airbag
Enabled
See Oper. Manual
The passenger front air bag and
the passenger knee air bag are
activated while driving even
though a child, small individual,
or object below the system’s
weight threshold is on the pas-
senger seat, or the passenger
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 passenger seat for the following:
Switch off the ignition (
page 40).

Apply the parking brake (
page 55).

Remove child and child restraint from passenger seat.

Make sure that no objects which are applying supplemen-
tal weight onto the seat are present. The system may rec-
ognize such supplemental weight and sense that an
occupant on the passenger seat is of a greater weight
than actually present.

Keep the seat unoccupied, close the passenger door and
switch on the ignition (
page 40).
Monitor the PASSENGER AIR BAG OFF indicator lamp
(
page 70) and the multifunction display in the instrument
cluster (
page 117) for the following:
(Continued on next page)

325 Practical hints
What to do if ...
Left display
Right display
Possible cause/consequence
Possible solutionWith the seat unoccupied and the ignition switched on,

the PASSENGER AIR BAG OFF indicator lamp (
page 70) should
illuminate and remain illuminated, indicating that the OCS
(
page 67) has deactivated the passenger front air bag and the
passenger knee air bag.


the message
Front Passeng. Airbag Enabled See Oper. Manual

or the message
Front Passeng. Airbag Disabled See Oper. Man-
ual
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 passenger seat again.
Depending on the passenger classification sensed by the OCS
(
page 67), the PASSENGER AIR BAG OFF indicator 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 PASSENGER AIR BAG OFF indicator
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 passenger seat
until the system has been repaired.

326 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
Front Passeng.
Airbag
Disabled
See Oper. Manual
The passenger front air bag is
deactivated while driving even
though an adult or someone
larger than a small individual is
occupying the 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 passenger seat for the following:
Switch off the ignition (
page 40).

Apply the parking brake (
page 55).

Have the passenger vacate the seat and exit the vehicle.

Keep the seat unoccupied, close the passenger door and
switch on the ignition (
page 40).
Monitor the PASSENGER AIR BAG OFF indicator lamp
(
page 70) and the multifunction display in the instrument
cluster (
page 117) for the following:
With the seat unoccupied and the ignition switched on,


the PASSENGER AIR BAG OFF indicator lamp (
page 70)
should illuminate and remain illuminated, indicating that
the OCS (
page 67) has deactivated the passenger front
air bag and the passenger knee air bag.
(Continued on next page)

327 Practical hints
What to do if ...
Left display
Right display
Possible cause/consequence
Possible solution

the message
Front Passeng. Airbag Enabled See Op-
er. Manual or the message
Front Passeng. Airbag
Disabled See Oper. Manual should not appear in the
multifunction display at any time the seat is unoccu-
pied. Wait at least 60 seconds for the system to com-
plete the necessary check cycles and to make sure
neither message appears in the multifunction display.
If above conditions are met, you can occupy the passenger
seat again. Depending on the passenger classification
sensed by the OCS (
page 67), the PASSENGER AIR BAG
OFF indicator 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 PASSENGER AIR BAG OFF indicator
lamp remains illuminated with an adult oc-
cupant on the passenger seat even after
performing the above corrective steps, do
not have any passenger use the passenger
seat until the system has been repaired.

328 Practical hintsWhat to do if ...Left display
Right display
Possible cause/consequence
Possible solution
P
Gear Selector
Lever To P
You wish to start the engine and the
selector lever is not in park
positionP.

Move the selector lever to park positionP.
Shift To N
To Start

Move the selector lever to neutral
positionN.
SLR
ACL Malfunction
Service
Required


The locking system is
malfunctioning.


The transmission cooling system
is malfunctioning.

Have the system checked at an authorized
Mercedes-Benz Center immediately.
SRS
Restraint System

Malfunction
Service
Required
There is a malfunction in the supple-
mental restraint systems. The
air bags or Emergency Tensioning
Devices (ETDs) could deploy unex-
pectedly or fail to activate in an acci-
dent.

Drive with added caution and have the
system checked at an authorized
Mercedes-Benz Center immediately.
Warning!
G
In the event that a malfunction of the SRS is
indicated as outlined above, the SRS may
not be operational. For your safety, we
strongly recommend that you contact an
authorized Mercedes-Benz Center immedi-
ately to have the system checked; otherwise
the SRS may not be deployed when needed
in an accident, which could result in serious
or fatal injury, or it might deploy
unexpectedly and unnecessarily which
could result in an accident and/or injury to
you or to others.