G
Warning!
Do not use cleaners or cockpit care sprays
containing solvents to clean the cockpit or the
steering wheel. Cleaners containing solvents
will make the surface porous and vehicle
occupants could suffer serious injuries from
plastic parts coming loose in the event of air
bag deployment.
! Do not use oil, wax or scouring agents.
Otherwise you may scratch or damage the
surface.
Hard plastic trim items
X Use Mercedes-Benz approved Interior Care
on
a soft, lint-free cloth and apply with light
pressure.
Audio or COMAND display !
You must switch off the audio or
COMAND display and allow it to cool prior
to cleaning.
! Do
not use any liquids or cleaning agents.
These can damage or even destroy the
audio or COMAND display screen.
X Use a standard microfiber cloth and apply
with light pressure.
Steering wheel and gearshift/gear
selector lever X
Wipe with a damp cloth and dry thoroughly
or clean with Mercedes-Benz approved
Leather Care.
Carpets X
Use Mercedes-Benz approved Carpet and
Fabric Care for cleaning the carpets.
Headliner X
Use a soft bristle brush or a dry-shampoo
cleaner in case of excessive dirt. Seat belts X
Only use clear, lukewarm water and soap.
! The seat belts must not be treated with
chemical cleaning agents. Do not dry the
seat belts at temperatures above
176‡
(80†) or in direct sunlight. G
Warning!
Do not bleach or dye seat belts as this may
severely weaken them. In a crash they may
not be able to provide adequate protection.
Upholstery Using aftermarket seat covers or wearing
clothing that have the tendency to give off
coloring (e.g. when wet, etc.) may cause the
upholstery to become permanently
discolored. By lining the seats with a proper
intermediate
cover, contact-discoloration will
be prevented. G
Warning!
Only use seat covers which have been tested
and approved by Mercedes-Benz for your
vehicle model. Using other seat covers may
interfere with or prevent the deployment of
the head-thorax air bags. Contact an
authorized Mercedes-Benz Center for
availability.
Leather upholstery
Please note that leather upholstery is a
natural product and is therefore subject to a
natural aging process. Leather upholstery
may also react to certain ambient influences
such
as high humidity or high temperature by
showing wrinkles for example.
X Wipe leather upholstery with a damp cloth
and
dry thoroughly or clean with Mercedes-
Benz approved Leather Care.
! To avoid damage to leather upholstery:
R Wipe with light pressure only.
R Do not clean with abrasive cleaning
agents
such as scouring milk or powder. Vehicle care
231
Operation
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Display messages
Possible causes/consequences and
X Solutions4 Cannot
Measure
Engine
Oil Level SLK 55 AMG only:
The measuring system is malfunctioning.
X
Have the measuring system checked at an authorized
Mercedes-Benz Center. 4 Engine
Oil Level
Reduce
Oil Level SLK 55 AMG only:
You have added too much engine oil. There is a risk of
damaging the engine or the catalytic converter.
X
Have oil siphoned or drained off. Observe all legal
requirements with respect to its disposal. 4 Engine
Oil Level
Stop,
turn
engine
off. The engine oil level is too low. There is a danger of engine
damage.
X
Stop the vehicle in a safe location or as soon as it is safe
to do so.
X Turn off the engine.
X Engage the parking brake.
X Add engine oil ( Y page 195) and check the engine oil level
(Y page 193). C The fuel level is low.
X
Refuel at the next gas station. 8 Reserve
Fuel The fuel level has dropped below the reserve mark.
X
Refuel at the next gas station. 8 Gas Cap
Is Open A loss of pressure has been detected in the fuel system. The
fuel cap may not be closed properly or the fuel system may
be leaking.
X
Check the fuel cap ( Y page 191).
X If it is not closed properly: Close the fuel cap.
X If it is closed properly: Have the fuel system checked at
an authorized Mercedes-Benz Center. Vehicle status messages in the multifunction display
251Practical hints
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of these oxygenates to gasoline does not
exceed 10%; MTBE must not exceed 15%.
The ratio of methanol to gasoline must not
exceed 3% plus additional cosolvents.
Using
mixtures of ethanol and methanol is not
allowed. Gasohol, which contains 10%
ethanol and 90% unleaded gasoline, can be
used.
These blends must also meet all other fuel
requirements, such as resistance to spark
knock, boiling range, vapor pressure, etc. Gasoline additives
A major concern among engine
manufacturers is carbon build-up caused by
gasoline. Mercedes-Benz recommends only
the use of quality gasoline containing
additives that prevent the build-up of carbon
deposits.
After an extended period of using fuels
without such additives carbon deposits can
build up, especially on the intake valves and
in the combustion area, leading to engine
performance problems such as:
R Warm-up hesitation
R Unstable idle
R Knocking/pinging
R Misfire
R Power loss
In areas where carbon deposits may be
encountered due to lack of availability of
gasoline which contains these additives, the
use of Mercedes-Benz approved additives is
recommended.
Contact
an authorized Mercedes-Benz Center
or visit www.mbusa.com (USA only) for a
listing of approved products. Follow
directions on the product label.
Do not blend other fuel additives with fuel.
This only results in unnecessary cost and may
be harmful to the engine operation. !
Damage or malfunction resulting from
poor
fuel quality or from blending additional
fuel additives other than those tested and
approved by us for use on Mercedes-Benz
vehicles are not covered by the Mercedes-
Benz Limited Warranty or by any pre-owned
or Extended Limited Warranties. Coolants
The engine coolant is a mixture of water and
anticorrosion/antifreeze, which provides:
R Corrosion protection
R Freeze protection
R Boiling
protection (by increasing the boiling
point)
The cooling system was filled at the factory
with a coolant providing freeze protection to
approximately -35‡ (-37†) and corrosion
protection.
! Add premixed coolant solution only.
Adding water and MB 325.0 Anticorrosion/
Antifreeze separately from each other,
could cause engine damage not covered by
the Mercedes-Benz Limited Warranty.
If the antifreeze mixture is effective to -35‡
(-37†), the boiling point of the coolant in the
pressurized cooling system is reached at
approximately 266‡ (130†).
The coolant solution must be used year round
to provide the necessary corrosion protection
and increase boil-over protection. Refer to
the Maintenance Booklet for replacement
interval.
Coolant system design and coolant used
determine the replacement interval. The
replacement interval published in the
Maintenance Booklet is only applicable if
MB 325.0 Anticorrosion/Antifreeze solution
or other Mercedes-Benz approved products
of equal specification are used to renew the
coolant concentration or bring it back up to
the proper level. 304
Fuels, coolants, lubricants, etc.
Technical data
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