i
If the indicator lamp in Information
button : is flashing continuously and
there was no voice connection to the
Customer Assistance Center 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
multifunction display.
X Terminating calls: Press button ~ on
the multifunction steering wheel.
or
X Press the respective button for ending a
telephone call on the audio system or the
COMAND system.
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.
The indicator lamp in the respective button
flashes until the call is concluded. Automatic
initiated emergency calls can only be
terminated by a Customer Assistance Center
representative. All other calls can be
terminated by pressing button ~ on the
multifunction steering wheel or the
respective button for ending a telephone call
on the audio system or the COMAND system.
i When a Tele Aid call has been initiated,
the audio system or the COMAND system
is muted. The mobile phone is no longer
connected to the COMAND system. If you
must use this phone, we recommend that
you use it only with the vehicle at a
standstill in a safe location.
Destination Download to the COMAND
system i
The
components and operating principles
of the COMAND system can be found in the separate COMAND system operating
instructions.
Destination
Download allows you access to a
database of over 10 million points of interest
(POIs) that can be downloaded to your
vehicle’s navigation system. If you know the
destination, the address can be downloaded,
or can be provided with points of interests
near your location.
Route guidance
You will be prompted to confirm that route
guidance to the entered address is to be
started.
X Select Yes using button = or ; on
the COMAND system.
X Press button 9 on the COMAND system
to confirm.
The system calculates the route and
subsequently
starts the route guidance to the
defined address.
i If you select No, you can save the address
to your address book.
i The Destination Download feature is
available if the relevant mobile phone
network is available and data connection is
possible.
Search & Send “Search & Send” is a navigation destination
address entry service. For more information
on “Search & Send”, refer to separate
COMAND system operating instructions.
Remote door unlock
In case you have locked your vehicle
unintentionally
(e.g. SmartKey inside vehicle),
and the reserve SmartKey is not available:
X Contact the Customer Assistance Center
at 1-800-FOR-MERCedes 182
Useful features
Controls in detail
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Vehicle equipment ............................
190
The first 1000 miles (1500 km) .......190
At the gas station ............................. 190
Engine compartment ........................ 192
Tires and wheels ............................... 197
Winter driving ................................... 219
Driving instructions ..........................221
Maintenance ...................................... 225
Vehicle care ....................................... 227 189Operation
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X
Slowly insert oil dipstick : fully into the
dipstick guide tube.
X Pull out oil dipstick : again after
approximately 3 seconds to obtain
accurate reading.
The oil level is correct when it is between
lower (min) mark = and upper (max)
mark ; of oil dipstick :.
i The filling quantity between the upper and
lower marks on the oil dipstick is
approximately 2.1 US qt. (2.0 l).
X If necessary, add engine oil.
For more information on engine oil, see
“Fuels, coolants, lubricants etc.”
(Y page 300).
For information on messages in the
multifunction display concerning engine oil,
see the “Practical hints” section
(Y page 250).
Checking engine oil level with the
control system On the SLK 55 AMG you can check the engine
oil level with the control system.
X
Switch on the ignition.
The standard display appears in the
multifunction display ( Y page 96).
X Press button * or & on the
multifunction steering wheel repeatedly
until the following message appears in the
multifunction display: One of the following messages will
subsequently appear in the multifunction
display:
R
Engine Oil Level OK
R Add 1.0 qt. (Canada: 1.0 liter)
to reach max. oil level.
R Add 1.5 qts. (Canada: 1.5 liters)
to reach max. oil level.
R Add 2.0 qts. (Canada: 2.0 liters)
to reach max. oil level.
i If you want to interrupt the checking
procedure, press button * or & on
the multifunction steering wheel.
X If necessary, add engine oil.
For more information on engine oil, see
“Fuels, coolants, lubricants etc.”
(Y page 300).
Other display messages
If the ignition is not switched on, the following
message appears in the multifunction
display:
Turn on ignition
to see engine oil level.
X Switch on the ignition.
If you see the message:
Observe
Waiting Time
X If the engine is at operating temperature,
wait 5 minutes before repeating check
procedure.
X If the engine is not at operating
temperature yet, you must wait 30 minutes
before checking oil.
If you see the message:
Cannot check engine oil level
with engine on.
X Turn off the engine.
X If the engine is at operating temperature,
wait 5 minutes before checking oil.
X If the engine is not at operating
temperature yet, you must wait 30 minutes
before checking oil. 194
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i
If you want to interrupt the checking
procedure, press button * or & on
the multifunction steering wheel.
If there is excess engine oil with the engine at
normal operating temperature, the following
message appears in the multifunction
display:
Engine Oil Level
Reduce Oil Level
X Have excess oil siphoned or drained off.
Contact an authorized Mercedes-Benz
Center.
! 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.
For information on messages in the
multifunction display concerning engine oil,
see the “Practical hints” section
(Y page 251).
Adding engine oil !
Only use approved engine oils and oil
filters required for vehicles with
Maintenance System. For a listing of
approved engine oils and oil filters, contact
an authorized Mercedes-Benz Center or
visit www.mbusa.com (USA only).
The following will result in engine or
emission control system damage not
covered by the Mercedes-Benz Limited
Warranty:
R Using engine oils and oil filters of
specification other than those expressly
required for the Maintenance System.
R Changing of oil and oil filter at change
intervals longer than those called for by
the Maintenance System.
R Using any oil additives. Example illustration: SLK 350 (SLK 300 similar)
SLK 55 AMG
X
Unscrew filler cap : from filler neck.
X Add engine oil as required. Be careful not
to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.
! 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.
X Screw filler cap : back on filler neck.
For more information on engine oil, see the
“Technical data” section ( Y page 300) and
(Y page 302). Transmission fluid level
Vehicles with automatic transmission:
The transmission fluid level does not need to
be checked. If you notice transmission fluid
loss or gearshifting malfunctions, have an Engine compartment
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!
Only use washer fluid which is suitable for
plastic lenses. Improper washer fluid can
damage the plastic lenses of the
headlamps.
! Do not use distilled or deionized water in
the washer fluid reservoir. Otherwise, the
washer fluid level sensor could be
damaged.
Fluid for the washer system and the headlamp
cleaning system is supplied from the washer
fluid reservoir.
During all seasons, use MB Windshield
Washer Concentrate “MB SummerFit”. Mix it
with water or premixed washer solvent/
antifreeze depending on the ambient
temperature ( Y page 306). Example illustration: SLK 350
X
Opening washer fluid reservoir: Pull tab
of cap : upwards.
X Refill the washer fluid reservoir.
X Closing washer fluid reservoir: Press
cap : onto filler hole until it engages.
For more information, see “Washer system
and headlamp cleaning system”
(Y page 302). Brake fluid level
! If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum
mark or below, have the brake system
checked for brake pad thickness and leaks
immediately. Contact an authorized Mercedes-Benz Center immediately. Do
not add brake fluid as this will not solve the
problem. For more information, see
“Practical hints”.
When checking the brake fluid level, the
vehicle must be parked on level ground. The brake fluid level is correct when it is
between lower mark (MIN)
; and upper
mark (MAX) : of the brake fluid reservoir. Tires and wheels
Safety notes
Contact an authorized Mercedes-Benz Center
for information on tested and recommended
rims and tires for summer and winter
operation. They can also offer advice
concerning tire service and purchase. G
Warning!
Replace rims or tires with the same
designation, manufacturer and type as shown
on the original part. For further information
contact an authorized Mercedes-Benz Center.
If incorrectly sized rims and tires are
mounted, the wheel brakes or suspension
components can be damaged. Also, the
operating clearance of the wheels and the
tires may no longer be correct. G
Warning!
Worn, old tires can cause accidents. If the tire
tread is worn to minimum tread depth, or if Tires and wheels
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the tires have sustained damage, replace
them.
When replacing rims, only use genuine
Mercedes-Benz wheel bolts specified for the
particular
rim type. Failure to do so can result
in the bolts loosening and possibly an
accident.
Retreaded tires are not tested or
recommended by Mercedes-Benz, since
previous damage cannot always be
recognized on retreads. The operating safety
of the vehicle cannot be assured when such
tires are used. G
Warning!
If you feel a sudden significant vibration or
ride
disturbance, or you suspect that possible
damage to your vehicle has occurred, you
should turn on the hazard warning flashers,
carefully slow down, and drive with caution to
an area which is a safe distance from the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have the vehicle towed to the
nearest authorized Mercedes-Benz Center or
tire dealer for repairs. G
Warning!
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
could lose control of the vehicle. Continued
driving
with a flat tire or driving at high speed
with a flat tire will cause excessive heat build-
up and possibly a fire. Important guidelines
R Only
use sets of tires and rims of the same
type and make.
R Tires must be of the correct size for the rim.
R Break in new tires for approximately
60 miles (100 km) at moderate speeds.
R Regularly check the tires and rims for
damage. Dented or bent rims can cause tire inflation pressure loss and damage to the
tire beads.
R If the vehicle is heavily loaded, check tire
inflation pressure and correct as required.
R Do not allow your tires to wear down too
far. Adhesion properties on wet roads are
sharply reduced at tread depths of less
than 1
/ 8 in (3 mm).
R When
replacing individual tires, you should
mount new tires on the front wheels first
(on vehicles with same-sized wheels all
around). Recommended tire inflation pressure
G
Warning!
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.
Do
not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout)
because they are more likely to become
punctured or damaged by road debris,
potholes etc.
Do not overload the tires by exceeding the
specified load limit as indicated on the Tire
and Loading Information placard on the
driver’s door B-pillar. Overloading the tires
can overheat them, possibly causing a
blowout. Overloading the tires can also result
in handling or steering problems, or brake
failure.
Your vehicle is equipped with the Tire and
Loading Information placard located on the
driver’s door B-pillar ( Y page 205).
The tire inflation pressure should be checked
regularly. Only adjust the tire inflation
pressure on cold tires. The tires can be
considered cold if the vehicle has been
parked for at least 3 hours or driven less than 198
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1 mile (1.6 km). Depending on the ambient
temperature, the driving speed and the tire
load, the tire temperature changes. When the
tire temperature changes by 18‡ (10†), the
tire inflation pressure will change by
approximately 1.5 psi (0.1 bar). Keep this in
mind when checking tire inflation pressure on
warm tires and adjust the tire pressure only
if the tire inflation pressure is too low for the
current operating conditions. If you check the
tire inflation pressure when the tires are
warm, the reading will be higher than the cold
reading. This is normal. Do not let air out to
match the specified cold tire inflation
pressure. Otherwise, the tire will be
underinflated.
Follow recommended cold tire inflation
pressures listed on Tire and Loading
Information placard on the driver’s door
B-pillar.
Keeping the tires properly inflated provides
the best handling, tread life and riding
comfort.
In addition to the Tire and Loading
Information placard on the driver’s door
B-pillar, also consult the tire inflation
pressure label on the inside of the filler flap
for any additional information pertaining to
special driving situations. For more
information, see “Important notes on tire
inflation pressure” (
Y page 199).
i Data shown on Tire and Loading
Information placard example are for
illustration purposes only. Tire data are
specific to each vehicle and may vary from
data shown in the following illustration.
Refer to Tire and Loading Information
placard on vehicle for actual data specific
to your vehicle. The Tire and Loading Information placard lists
the recommended cold tire inflation
pressures
: for maximum loaded vehicle
weight. The tire inflation pressures listed
apply to the tires installed as original
equipment.
Important notes on tire inflation
pressure G
Warning!
If the tire inflation pressure drops repeatedly,
check the tires for punctures from foreign
objects and/or whether air is leaking from the
valves or from around the rim.
Tire temperature and tire inflation pressure
are also increased while driving, depending
on the driving speed and the tire load.
If you will be driving your vehicle at high
speeds of 100 mph (160 km/h) or higher,
where it is legal and conditions allow, consult
the tire inflation pressure label on the inside
of the fuel filler flap on how to adjust the cold
tire inflation pressure. If you do not adjust the
tire inflation pressure, excessive heat can
build up and result in sudden tire failure.
If you are not sure about the proper tire
inflation, contact an authorized Mercedes-
Benz Center.
i Driving comfort may be reduced when the
tire inflation pressure is adjusted to the
value for speeds above 100 mph
(160 km/h) as specified on the tire inflation
pressure label located on the inside of the
fuel filler flap. Tires and wheels
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Make sure to readjust the tire inflation
pressure for normal driving speeds.
Supplemental tire inflation pressure
information for different loading conditions of
the vehicle can be found on the tire inflation
pressure label. The tire inflation pressure
label is located on the inside of the fuel filler
flap.
For the tire inflation pressure for spare
wheels such as Minispare wheels or spare
wheels with collapsible tire refer to
R
the yellow label on the spare wheel rim
R the “Technical data” section of this
Operator’s Manual ( Y page 300)
R the Tire and Loading Information placard on
the driver’s door B-pillar
Unless specified otherwise, the tire inflation
pressures on the tire inflation pressure label
are valid for all approved, factory-equipped
tires. When a tire size is specified, the tire
inflation pressure that follows applies to that
particular tire size only.
i Data shown on tire inflation pressure
label examples are for illustration purposes
only. Tire inflation pressure data are
specific to each vehicle and may vary from
data shown in the following illustrations.
Refer to the tire inflation pressure label on
vehicle for actual data specific to your
vehicle. Example illustration: Tire inflation pressures for all
approved, factory equipped tires Some tire inflation pressure labels may only
show the rim diameter instead of the entire
tire size, e.g. R 18 or 18".
The rim diameter is part of the tire size as
specified on the tire sidewall (Y page 213).
Example illustration: Tire inflation pressures
specific to rim diameter
Potential problems associated with
underinflated and overinflated tires
Underinflated tires
G
Warning!
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.
Underinflated tires can
R cause excessive and uneven tire wear
R adversely affect fuel economy
R lead to tire failure from being overheated
R adversely affect handling characteristics
Overinflated tires G
Warning!
Follow recommended tire inflation pressures.
Do not overinflate tires. Overinflated tires can
adversely affect handling and ride comfort,
wear unevenly, increase stopping distance,
and result in sudden deflation (blowout)
because they are more likely to become 200
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