199 Controls in detail
Driving systems
Setting a higher speed
Lift cruise control lever to position1
and hold it up until the desired speed is
reached.
Release cruise control lever.
The new speed is set.
Setting a lower speed
Depress cruise control lever to
position2 and hold it down until the
desired speed is reached.
Release cruise control lever.
The new speed is set.Fine adjustment in 1 mph
(Canada: 1 km/h) increments
Faster
Briefly tip cruise control lever in
direction of arrow1.
Slower
Briefly tip cruise control lever in
direction of arrow2.Setting to last stored speed
(“Resume” function)
Briefly push cruise control lever to
position4.
The cruise control resumes the last set
speed.
Remove your foot from the accelerator
pedal.
iDepressing the accelerator pedal does
not deactivate cruise control. After
brief acceleration (e.g. for passing),
cruise control will resume the last
speed set.
iWhen you use the cruise control lever
to decelerate, the transmission will
automatically downshift if the engine’s
braking power does not brake the
vehicle sufficiently.
Warning!
G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to preset
speed could cause an accident and/or seri-
ous injury to you and others.
213 Controls in detail
Useful features
Upgrade scenario
An emergency call is possible even if other
services are active.
iThe indicator lamp in the Information
button¡ remains illuminated in red
for approximately ten seconds during
the system self-check after switching
on the ignition (together with the SOS
button and the Roadside Assistance
button•).
See system self-check (
page 208) if
the indicator lamp does not come on in
red or stays on longer than approxi-
mately ten seconds.
If the indicator lamp in the Information
button¡ is illuminated continuous-
ly and no voice connection to the Re-
sponse Center was established, then
the Tele Aid system could not initiate
an Information call (e.g. the relevant
cellular phone network is not avail-
able). The message
Call failed
ap-
pears in the multifunction display.
Information calls can be terminated us-
ing the ìbutton on the multifunc-
tion steering wheel.
!If the indicator lamps do not start flash-
ing after pressing one of the buttons or
remain illuminated (in red) at any time,
the Tele Aid system has detected a
malfunction or the service is currently
not active, and may not initiate a call.
Visit your Mercedes-Benz Center and
have the system checked or contact
the Response Center at
1-800-756-9018 (in the USA) or
1-888-881-6611 (in Canada) as soon
as possible.
!If the indicator lamp continues to flash
or the system does not reset, contact
the Response Center at
1-800-756-9018 (in the USA) or
1-888-881-6611 (in Canada), or
Mercedes-Benz Customer Assistance
at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA or
Customer Service at 1-888-881-6611
in Canada.
267 Operation
Tires and wheels
Press the reset button (
page 29).
The following message will appear in
the speedometer display field:
Monitor current tire pressure?
Press æ button.
The following message will appear in
the speedometer display field:Tire pressure displayed
after
driving a few mins.
Reactivate w/
R-button
If you wish to cancel activation:
Press ç button.
If the following message appears in the
speedometer display field:
Reactivate tire press. monit.
Re-start the activation of the tire infla-
tion pressure monitor.
If the following message appears in the
speedometer display field:
Tire pressure
Check tires!
Re-start the activation of the tire infla-
tion pressure monitor.Potential problems associated with
underinflated and overinflated tires
Underinflated tire inflation pressure
Underinflated tires can:
cause excessive and uneven tire wear
adversely affect fuel economy
lead to tire failure from being
overheated
adversely affect handling
characteristics
iIf transporting a deflated road wheel or
additional wheel sensors in the vehicle,
the tire inflation pressure monitor
should not be reactivated until the de-
flated wheel or additional wheel sen-
sors have been removed from the
vehicle. Otherwise the deflated wheel
or additional sensors could confuse the
tire inflation pressure monitor system
and cause it to malfunction.
Warning!
G
Follow recommended tire inflation
pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly,
adversely affect handling and fuel economy,
and are more likely to fail from being
overheated.
286 OperationMaintenanceIn order to maintain the performance and
safety of your SLR, we strongly recom-
mend that you have your vehicle serviced
by an authorized Mercedes-Benz Center,
every 12 months, even if the vehicle has
covered less than 10 000 miles
(15 000 km) in that time.
The maintenance service indicator will
notify you when your next maintenance
service is due within the next 12 months or
10 000 miles (15 000 km), whichever
comes sooner.
Failure to have the vehicle maintained in
accordance 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.Before your next maintenance service is
due, one of the following messages will ap-
pear in the right multifunction display while
you are driving or when you switch on the
ignition:
Service in.. days
Service in.. km
When the maintenance service is due, the
display message Service Due now!
ap-
pears.Clearing the maintenance service
indicator
1Reset button
The service display is automatically
cleared after 30 seconds. You can also
clear it yourself.
Press reset button 1.
287 Operation
Maintenance
Maintenance service term exceeded
If you have exceeded the suggested ser-
vice term, you will see the following mes-
sage in the right multifunction display:Service exceeded by .. days
Service exceeded by .. kmAny authorized Mercedes-Benz Center will
reset the maintenance service indicator
following a completed maintenance
service.
Calling up the service due date
Switch on the ignition (
page 40).
The standard display of the control
system appears (
page 117).
Press button k or j on the
multifunction steering wheel until the
maintenance service indicator service
symbol 9 appears in the left multi-
function display and the service dead-
line appears in the right multifunction
display.
iYou should not disconnect the consum-
er battery if you do not intend to use
your SLR for a longer period. Instead,
maintain the condition of the battery by
using the battery charger approved by
Mercedes-Benz for use on the SLR and
supplied with the car (
page 356).
This charger automatically controls the
charge rate, and can be left connected
to the car for long periods without dam-
age to the battery.
If the battery supplying the vehicle’s
electrical consumers is disconnected,
the days of disconnection will not be in-
cluded in the count shown by the ser-
vice indicator. To arrive at the true
service deadline, you will need to sub-
tract these days from the days shown
in the service indicator.
Do not confuse the maintenance
service indicator with the engine oil
level indicator:.
288 OperationMaintenanceResetting the maintenance service indicator
In the event that the maintenance service
on your vehicle is not carried out by an
authorized Mercedes-Benz Center, you can
have the maintenance service indicator
reset. The automotive maintenance facility
carrying out the maintenance service will
find the information for resetting the
maintenance service indicator in the
maintenance-relevant information for your
vehicle. Such information is available from
either your authorized Mercedes-Benz
Center or directly from Mercedes-Benz.
iIf the maintenance service indicator
was inadvertently reset, have an
authorized Mercedes-Benz Center
correct it.
Only reset if the proper maintenance
service has been performed. Resetting
the system without performing the
proper service as called for by the
maintenance service indicator will
result in engine damage and/or other
vehicle damage not covered by the
Mercedes-Benz Limited Warranty.
304 Practical hintsWhat 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 124) 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). Other messages of high priority and
messages of less immediate priority can
be cleared from the multifunction display
using the reset button. They are then
stored in the vehicle status message mem-
ory (
page 124). Remember that clearing
a message will only make the message dis-
appear. Clearing a message will not cor-
rect 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.
Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
Contact your nearest authorized
Mercedes-Benz Center.iSwitching on the ignition causes all in-
strument cluster lamps (except high
beam headlamp indicator lamp and
turn signal indicator lamps unless acti-
vated) as well as the multifunction dis-
play to come on. Make sure the lamps
and multifunction display are in work-
ing order before starting your journey.
387 Technical terms
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
GVW
(G
ross V
ehicle W
eight)
(
page 279)
GVWR
(Gross V
ehicle W
eight R
ating)
(
page 279)
Head-thorax airbag
Installed in the doors, these airbags
protect occupants during side impact
collisions exceeding a preset thresh-
old. Unlike normal side airbags,
head-thorax airbags are also designed
to provide protection for the head area.Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer,
engine temperature and fuel gauge.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
Kilopascal (kPa)
(
page 279)
Maximum load rating
(page 279)
Maximum loaded vehicle weight
(page 279)
Maximum tire inflation pressure
(page 279)MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the MON (Motor Octane Number) and
RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
Two display fields in the instrument
cluster used to present information
provided by the control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Normal occupant weight
(
page 279)