MERCEDES-BENZ SLR 2007 R199 Owner's Manual

310 Practical hints
What to do if ...
ProblemPossible cause/consequenceSuggested solution
1The red SRS indicator lamp
comes on while the engine is
running.There is a malfunction in the restraint sys-
tems. The air bags or emergency tensioning
device (ETD) could deploy unexpectedly or
fail to activate in an accident.Drive with added caution to the
nearest authorized
Mercedes-Benz Center.
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 also result in an accident and/or
injury to you or to others.

311 Practical hints
What to do if ...
ProblemPossible cause/consequenceSuggested solution
HLow tire pressure telltale for the
TPMS illuminates continuously.The TPMS detects a loss of pressure in at
least one tire.Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers. Observe the traffic
situation around you.
Read and observe messages in the
multifunction display.
The low tire pressure telltale goes out
once the TPMS has been reactivated after
the tire inflation pressure has been
corrected.
Warning!G
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or the tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or the tire inflation pressure label,
you should determine the proper tire infla-
tion pressure for those tires).
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor-
ing system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly underinflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significant-
ly underinflated tire causes the tire to over-
heat and can lead to tire failure.Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the driv-
er’s responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.

312 Practical hints
What to do if ...
Lamp in center console
ProblemPossible cause/consequenceSuggested solution
PASSENGER AIR BAG OFF
The passenger front air bag off
indicator lamp illuminates and
remains illuminated with the
weight of a typical adult or some-
one larger than a small individual
on the passenger seat.The system is malfunctioning.Have the system checked at an autho-
rized Mercedes-Benz Center as soon
as possible.
Also read and observe any messages
in the multifunction display and follow
corrective steps (
page 319).
Warning!G
If the PASSENGER AIR BAG OFF indicator
lamp illuminates and remains illuminated
with the weight of a typical adult or some-
one larger than a small individual on the pas-
senger seat, do not have any passenger use
the passenger seat until the system has
been repaired.

313 Practical hints
What to do if ...
ProblemPossible cause/consequenceSuggested solution
PASSENGER AIR BAG OFF
The passenger front air bag off
indicator lamp does not illumi-
nate and/or does not remain illu-
minated with the weight of a
typical 12-month-old child in a
standard child restraint or less
on the passenger seat.The system is malfunctioning.Make sure there is nothing between
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.
If the passenger front air bag off indi-
cator lamp remains out, have the sys-
tem checked as soon as possible by
an authorized Mercedes-Benz Center.
Do not transport a child on the pas-
senger seat until the system has been
repaired.
Also read and observe any messages
in the multifunction display and follow
corrective steps (
page 319).
Warning!G
If the PASSENGER AIR BAG OFF indicator
lamp does not illuminate or remains out with
the weight of a typical 12-month-old child
in a standard child restraint or less on the
passenger seat, do not transport a child on
the passenger seat until the system has
been repaired.

314 Practical hints
What to do if ...
Vehicle status messages in the
multifunction display
Warning and malfunction messages
appear in the multifunction display located
in the instrument cluster.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.
Selecting the vehicle status message
memory menu in the control system
(
page 128) displays both cleared and
uncleared messages.
High-priority messages appear in the
multifunction display in red color.Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button (
page 29) or
button j, k, ÿ, or è on the
multifunction steering wheel.
Other messages of high priority and
messages of less immediate priority can
be cleared from the multifunction display
using the reset button or button j,
k, ÿ, or è on the multifunction
steering wheel. They are then stored in the
vehicle status message memory
(
page 128). Remember that clearing a
message will only make the message
disappear. Clearing a message will not
correct the condition that caused the
message to appear.
Warning!G
All categories of messages contain
important information which should be
taken note of and, where a malfunction is
indicated, addressed as soon as possible at
an authorized Mercedes-Benz Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property
damage or personal injury.

315 Practical hints
What to do if ...
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may
appear in the multifunction display. High
priority messages appear in red color.
For your convenience the messages are
divided into two sections:

Text messages (page 316)

Symbol messages (page 327)
Warning!G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warn-
ing/indicator lamps, malfunction/warning
messages or the failure of any systems.
Driving characteristics may be impaired.
If you must continue to drive, do so with
added caution. Contact an authorized
Mercedes-Benz Center as soon as possible.
iSwitching on the ignition causes all instru-
ment cluster lamps (except high beam headlamp
indicator lamp and turn signal indicator lamps
unless activated) as well as the multifunction
display to come on. Make sure the lamps and
multifunction display are in working order before
starting your journey.

316 Practical hints
What to do if ...
Text messages
Left displayRight displayPossible cause/consequencePossible solution
ABSABS, ESP
unavailable
See
Oper. ManualRisk 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.

317 Practical hints
What to do if ...
Left displayRight displayPossible cause/consequencePossible solution
ABSABS, ESP
inoperative
See
Oper. ManualRisk of accident!
The ABS and ESP
® ha ve s witc he d 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.
Convenience
functionstemporarily
unavailableThe battery for electrical consumers
has insufficient voltage and can no
longer supply the convenience func-
tions such rear window heating.As soon as the on-board voltage is sufficient,
you will see the following message in the multi-
function display:
Convenience functions
available again
. The electrical consumers are
switched on again.
Cruise control––– mph
(USA only)
––– km/h
(Canada only)
You have attempted to resume a
stored speed, but nothing is stored.Store a speed (page 204).
You have attempted to set a speed
below 20 mph (30 km/h).Accelerate to a speed exceeding
20 mph (30 km/h) and set the speed
(
page 204).
The ESP® is switched off.Switch on the ESP® (page 86).
Exceptions: (
page 85).

318 Practical hints
What to do if ...
Left displayRight displayPossible cause/consequencePossible solution
ESPESP
inoperative
See
Oper. ManualRisk 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.
ESPESP unavailable
See
Oper. ManualRisk 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.

319 Practical hints
What to do if ...
Left display Right display Possible cause/consequencePossible solution
Front passenger
airbagenabled
See Oper. ManualThe 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)