2008 MERCEDES-BENZ SL55AMG display

254 Controls in detail
Useful features
The message Connecting Call will ap-
pear in the multifunction display and
the audio system is muted.
When the connection is established, the
message
Call Connected appears in the
multifunction display. The Tele Aid system
will transmit data generating the vehicle
identification number, model, color and lo-
cation (subject to availability of cellular
and GPS signals).
A voice connection between the Roadside
Assistance dispatcher and the occupants
of the vehicle will be established.
Describe the nature of the need for as-
sistance.
The Mercedes-Benz Roadside Assistance
dispatcher will either dispatch a qualified
Mercedes-Benz technician or arrange to
tow your vehicle to the nearest authorized
Mercedes-Benz Center. For services such
as labor and/or towing, charges may
apply. Refer to the Roadside Assistance
Manual for more information.The following is only available in the USA:

Sign and Drive services: Services such
as jump start, a few gallons of fuel or
the replacement of a flat tire with the
vehicle spare tire are obtainable.Information button ¡
The Information button¡ is located
below the center armrest cover.
1Information button¡
Open the telephone* compartment
(
page 239).
Press and hold button 1 (for longer
than 2 seconds).
A call to the Customer Assistance Cen-
ter will be initiated. The button will
flash while the call is in progress. The
message
Connecting Call will appear
in the multifunction display and the
audio system is muted.
iThe indicator lamp in the Roadside
Assistance button• remains illuminated in
red for approximately 10 seconds during the
system self-check after switching on the ignition
(together with the SOS button and the Informa-
tion button¡).
See system self-check (
page 251) if the indi-
cator lamp does not come on in red or stays on
longer than approximately 10 seconds.
If the indicator lamp in the Roadside Assistance
button• is flashing continuously and there
was no voice connection to the Response Center
established, then the Tele Aid system could not
initiate a Roadside Assistance call (e.g. the rele-
vant cellular phone network is not available). The
message
Call Failed appears in the multi-
function display.
Roadside Assistance calls can be terminated us-
ing the tbutton on the multifunction steer-
ing wheel or the respective button for ending a
telephone call on the COMAND headunit.


255 Controls in detail
Useful features
When the connection is established, the
message
Call Connected appears in the
multifunction display. The Tele Aid system
will transmit data generating the vehicle
identification number, model, color and lo-
cation (subject to availability of cellular
and GPS signals).
A voice connection between the Customer
Assistance Center representative and the
occupants of the vehicle will be estab-
lished. Information regarding the operation
of your vehicle, the nearest
Mercedes-Benz Center or Mercedes-Benz
USA products and services is available to
you.
For more details concerning the Tele Aid
system, please visit www.mbusa.com and
use your ID and password (sent to you sep-
arately) to learn more (USA only).iThe indicator lamp in the Information
button¡ remains illuminated in red for ap-
proximately 10 seconds during the system
self-check after switching on the ignition (togeth-
er with the SOS button and the Roadside Assis-
tance button•).
See system self-check (
page 251) if the indi-
cator lamp does not come on in red or stays on
longer than approximately 10 seconds.
If the indicator lamp in the Information
button¡ is flashing continuously and no
voice connection to the Response Center was
established, then the Tele Aid system could not
initiate an Information call (e.g. the relevant
cellular phone network is not available). The
message
Call Failed appears in the multi-
function display.
Information calls can be terminated using the
tbutton on the multifunction steering wheel
or the respective button for ending a telephone
call on the COMAND headunit.
!If the indicator lamps do not start flashing
after pressing one of the buttons or remain illu-
minated (in red) at any time, the Tele Aid system
has detected a malfunction or the service is cur-
rently not active, and may not initiate a call. Visit
an authorized Mercedes-Benz Center and have
the system checked or contact the
Response Center at 1-800-756-9018 (in the
USA) or 1-888-923-8367 (in Canada) as soon as
possible.

256 Controls in detail
Useful features
Call priority
If other service calls such as a Roadside
Assistance call or Information call are
active, an Emergency call is still possible.
In this case, the Emergency call will take
priority and override all other active calls.Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle),
and the reserve SmartKey is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.
Then return to your vehicle and pull the
trunk recessed handle for a minimum
of 20 seconds until the SOS button is
flashing.
The message
Call Connected appears
in the multifunction display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your acquaintance call.
iThe indicator lamp in the respective button
flashes until the call is concluded. Calls can only
be terminated by a Response Center or
Customer Assistance Center representative
except Roadside Assistance and Information
calls, which can also be terminated by pressing
button t on the multifunction steering wheel
or the respective button for ending a telephone
call on the COMAND headunit.
!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
1-888-923-8367 (in Canada), or Mercedes-Benz
Customer Assistance at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA or Customer
Service at 1-800-387-0100 in Canada.
iWhen a Tele Aid call has been initiated, the
COMAND system audio is muted and the
selected mode (radio or CD) pauses.
The optional cellular phone (if installed) switches
off. If you must use this phone, the vehicle must
be parked. Disconnect the coiled cord and place
the call. The COMAND navigation system (if
engaged) will continue to run. The display in the
instrument cluster is available for use and
spoken commands are only available by pressing
the RPT button on the COMAND unit. A pop-up
window will appear in the COMAND display to
indicate that a Tele Aid call is in progress.

269 Operation
Driving instructions
To help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.
If your brake system is normally only
subjected to moderate loads, you should
occasionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads.Refer to the description of the Brake Assist
System (BAS) (page 91).
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the
reservoir.
The brake fluid level in the reservoir may
be too low or the electro-hydraulic brake
system may be malfunctioning if the brake
warning lamp in the instrument cluster
comes on and an acoustic warning sounds
although the parking brake is released
(
page 345).
Observe additional messages in the
multifunction display that may appear, see
(
page 377) through (page 382).
Have the brake system inspected immedi-
ately. Contact an authorized
Mercedes-Benz Center.All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Center.
Only install brake pads and brake fluid
recommended by Mercedes-Benz.
!Because the ESP® operates automatically,
the engine must be shut off (SmartKey in starter
switch position 0 or 1or KEYLESS-GO*
start/stop button in position 0 or 1) when the
parking brake is being tested on a brake test
dynamometer.
Active braking action through the ESP
® may
otherwise seriously damage the brake system.
Warning!G
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
Warning!G
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that
safe braking is substantially impaired. This
could result in an accident.
Be certain to read and observe the warning
notices on brake pad replacement
(
page 96).
!When driving down long and steep grades,
relieve the load on the brakes by shifting into a
lower gear to use the engine’s braking power.
This helps prevent overheating of the brakes and
reduces brake pad wear.

270 Operation
Driving instructions
After hard braking, it is advisable to drive
on for some time, rather than to park im-
mediately, so the air stream will cool down
the brakes faster.
High-performance brake system
(AMG vehicles only)
The high-performance brake system is de-
signed to operate under the extremely high
operating demands required to accommo-
date the performance capabilities of the
vehicle. The brakes may produce a squeak-
ing-type noise depending on the

vehicle speed

brake force applied

ambient conditions, e.g. temperature
and humidity
As with any brake system, the wear of indi-
vidual brake system components such as
brake pads or disks strongly depends on
your driving style and the conditions under
which you operate the vehicle. Thus, a driv-ing style calling for high demand braking
will cause your vehicle’s brakes to wear
more quickly.
Driving off
Apply the brakes to test them briefly after
driving off. Perform this procedure only
when the road is clear of other traffic.
Warm up the engine smoothly. Do not
place full load on the engine until the oper-
ating temperature has been reached.
Warning!G
New vehicle brake pads and discs, and
replacement brake pads and discs may take
several hundred miles of driving until they
provide optimum braking efficiency. Until
that time, you may need to use increased
brake pedal pressure while braking. Please
be aware of this and adjust your driving and
braking accordingly during this break-in
period.
Excessive high demand braking will cause
correspondingly high brake wear. Please be
attentive to the brake warning lamp in the
instrument cluster and brake condition mes-
sages in the multifunction display. Especial-
ly for high performance driving, it is
important to maintain and have the brake
system checked regularly.
!When starting off on a slippery surface, do
not allow a drive wheel to spin for an extended
period with the ESP
® switched off. Doing so may
cause serious damage to the drivetrain which is
not covered by the Mercedes-Benz Limited
Warranty.
!Simultaneously depressing the accelerator
pedal and applying the brake reduces engine
performance and causes premature brake and
drivetrain wear.

284 Operation
Engine compartment
Checking engine oil level with the
control system* (except SL 550)
When checking the oil level

the vehicle must be parked on level
ground

with the engine at operating tempera-
ture, the vehicle must have been sta-
tionary for at least 5 minutes with the
engine turned off

with the engine not at operating tem-
perature, the vehicle must have been
stationary for at least 30 minutes with
the engine turned off
Switch on the ignition (page 40).
The standard display (
page 143)
should appear in the multifunction dis-
play.
Press buttonk orj on the
steering wheel until the following
message appears in the multifunction
displays:
After about 3 seconds, the following
message appears in the left multifunc-
tion display:
Engine Oil Measuring
Now
.One of the following messages will
subsequently appear in the right multi-
function display:

Engine Oil Level
OK

Add 1.0 qt
to reach max.
oil level
.
(Canada:
1.0 liter)

Add 1.5 qts
to reach max.
oil level
.
(Canada:
1.5 liters)

Add 2.0 qts
to reach max.
oil level
.
(Canada:
2.0 liters)
iIn vehicles without engine oil measuring
system, the engine oil level is measured via the
oil dipstick (
page 286).
iIf you want to interrupt the checking
procedure, press thek orj button on
the multifunction steering wheel.

285 Operation
Engine compartment
If necessary, add engine oil.
For information on adding engine oil, see
(
page 286).
For more information on engine oil, see the
“Technical data” section (
page 457) and
(
page 460).
Other display messages
If the SmartKey or the KEYLESS-GO*
start/stop button is not in position2, the
following message will appear:
Turn ignition on
to measure
engine oil level
.
Switch on the ignition (page 40).If you see the message:
Observe
Waiting Time
If the engine is at operating tempera-
ture, wait 5 minutes before repeating
the check procedure.
If the engine is not at operating temper-
ature yet, wait 30 minutes before re-
peating the check procedure.
If you see the message:
Engine Oil Level
Not With
Engine Running
Turn off the engine.
If the engine is at operating tempera-
ture, wait 5 minutes before checking
oil.
If the engine is at operating tempera-
ture yet, you must wait 30 minutes be-
fore checking oil.If there is excess engine oil with the engine
at normal operating temperature, the
following message will appear:
Engine Oil Level
Reduce Oil Level
Have excess oil siphoned or drained
off. Contact an authorized
Mercedes-Benz Center.
For more information on messages in the
display concerning engine oil, see the
“Practical hints” section (
page 388).
!Excess oil must be siphoned or drained off.
It could cause damage to the engine and
emission control system not covered by the
Mercedes-Benz Limited Warranty.

286 Operation
Engine compartment
Checking engine oil level with the oil
dipstick (SL 550 only)
When checking the oil level

the vehicle must be parked on level
ground

the vehicle must have been stationary
for at least 5 minutes with the engine
turned off
1Oil dipstick
2Upper mark
3Lower mark
Open the hood (page 282).
Pull out oil dipstick 1.
Wipe oil dipstick 1 clean.
Fully insert oil dipstick 1 into the dip-
stick guide tube.
Pull out oil dipstick 1 again after ap-
proximately 3 seconds to obtain accu-
rate reading.
The oil level is correct when it is be-
tween lower mark 3 (min.) and upper
mark 2 (max.) of the oil dipstick.
If necessary, add engine
oil (
page 286).
For more information on engine oil, see
“Technical data” section (
page 457) and
(
page 460).
For information on messages in the multi-
function display concerning engine oil, see
the “Practical hints” section (
page 388).Adding engine oil
iIn vehicles without an oil dipstick, the engine
oil level is measured via the control
system (
page 284).
iThe filling quantity between the upper and
lower marks on the oil dipstick is approximately
2.1 US qt. (2.0 l).
!Only use approved engine oils and oil filters
required for vehicles with Maintenance System.
For a listing of approved engine oils and oil fil-
ters, refer to the Factory Approved Service
Products pamphlet (USA only) in your vehicle
literature portfolio, or contact an authorized
Mercedes-Benz Center.
Using engine oils and oil filters of specification
other than those expressly required for the
Maintenance System, or changing of oil and oil
filter at change intervals longer than those called
for by the Maintenance System will result in
engine or emission control system damage not
covered by the Mercedes-Benz Limited
Warranty.