2008 MERCEDES-BENZ SLK280 Service c

364 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
SRSRestraint System Malfunction
Service RequiredThere is a malfunction in the supple-
mental restraint systems. The air bags
or emergency tensioning devices
(ETDs) could deploy unexpectedly or
fail to activate in an accident.Drive with added caution to an
authorized Mercedes-Benz Center
and have the system checked
immediately.
TransmissionService RequiredVehicles with automatic transmis-
sion*:
The provided operating safety of the
automatic transmission is reduced.Drive with added caution to the
nearest authorized Mercedes-Benz
Center.
Warning!G
In the event 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.

378 Practical hints
What to do if …
When the message Add 1 qt. (Canada:
1 liter) engine oil when next
refueling
(SLK 55 AMG) or Check oil
level when next refueling
(SLK 280,
SLK 350) appears while the engine is run-
ning and at operating temperature, the en-
gine oil level has dropped to approximately
the minimum level.
When this occurs, the warning is at first
intermittent and then remains on if the oil
level drops further.Visually check for oil leaks. If there are no
obvious oil leaks, drive to the nearest
service station to refill the engine oil
should be topped to the required level.
For information on approved engine oils,
refer to the Factory Approved Service
Products pamphlet (USA only) or contact
an authorized Mercedes-Benz Center.
Display symbolDisplay messagePossible cause/consequencePossible solution
NUSA only:
Add 1 qt. engine oil
when next refueling
.
Canada only:
Add 1 liter engine oil
when next refueling
.
SLK 55 AMG only:
The engine oil level is too low.Add engine oil (page 299) and check the
engine oil level (
page 296).
Cannot Measure
Engine Oil LevelSLK 55 AMG only:
The measuring system is malfunc-
tioning.Have the measuring system checked by an
authorized Mercedes-Benz Center.
!Engine oil level warnings should not be
ignored. Extended driving with the symbol
displayed could result in serious engine damage
that is not covered by the Mercedes-Benz
Limited Warranty.

435 Technical data
Parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main Dimensions
Weights
Fuels, coolants, lubricants, etc.

436 Technical data
The “Technical data” section provides the
necessary technical data for your vehicle.
Parts service
All authorized Mercedes-Benz Centers
maintain a stock of Genuine
Mercedes-Benz Parts required for mainte-
nance and repair work. In addition, strate-
gically located parts distribution centers
provide quick and reliable parts service.
More than 300 000 different parts for
Mercedes-Benz models are available.
Genuine Mercedes-Benz Parts are subject-
ed to stringent quality inspections. Each
part has been specifically developed,
manufactured or selected for and adapted
to Mercedes-Benz vehicles.
Therefore, Genuine Mercedes-Benz Parts
should be installed.!The use of non-genuine Mercedes-Benz
parts and accessories not authorized by
Mercedes-Benz could damage the vehicle, which
is not covered by the Mercedes-Benz Limited
Warranty, or could compromise the vehicle’s
durability or safety.

437 Technical data
Warranty coverage
Warranty coverage
Your vehicle is covered under the terms of
the warranties printed in the Service and
Warranty Information booklet. Your
authorized Mercedes-Benz Center will
exchange or repair any defective parts
originally installed in the vehicle in
accordance with the terms of the following
warranties:

New Vehicle Limited Warranty

Emission System Warranty

Emission Performance Warranty

California, Maine, Massachusetts, and
Vermont Emission Control Systems
WarrantyReplacement parts and accessories are
covered by the Mercedes-Benz Parts and
Accessories warranties, copies of which
are available at any authorized
Mercedes-Benz Center.Loss of Service and Warranty
Information Booklet
Should you lose your Service and Warranty
Information booklet, have an authorized
Mercedes-Benz Center arrange for a
replacement. It will be mailed to you.

451 Technical data
Fuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.
Capacities
Vehicle components and their respective
lubricants must match. Therefore, only use
products tested and approved by
Mercedes-Benz.
Please refer to the Factory Approved
Service Products pamphlet (USA only), or
inquire at an authorized Mercedes-Benz
Center.
Warning!G
Comply with all valid regulations with
respect to handling, storing and disposing
of service fluids. Otherwise you could
endanger persons or the environment.
Keep service fluids out of the reach of
children.
For health reasons, you should prevent
service fluids from coming into direct
contact with you skin or clothing.
If a service fluid is swallowed, contact a
physician immediately.
ModelCapacityFuels, coolants, lubricants etc.
Engine with oil filterAll models8.5 US qt (8.0 l)Approved engine oils
Automatic transmission*SLK 280, SLK 3509.5 US qt (9.0 l)MB Automatic Transmission Fluid
SLK 55 AMG9.2 US qt (8.7 l)
Manual transmissionSLK 280, SLK 3501.6 US qt (1.5 l)MB Manual Transmission Oil
Rear axleSLK 2801.1 US qt (1.0 l)Hypoid gear oil SAE 85 W 90
SLK 3501.2 US qt (1.1 l)
SLK 55 AMG1.3 US qt (1.2 l)

453 Technical data
Fuels, coolants, lubricants, etc.
Engine oils
Engine oils are specifically tested for
their suitability in our engines and durabil-
ity for our service intervals. Therefore, only
use approved engine oils and oil filters
required for vehicles with
Maintenance System. For a listing of ap-
proved engine oils and oil filters, refer to
the Factory Approved Service Products
pamphlet (USA only), or contact an
authorized Mercedes-Benz Center.Engine oil additivesAir conditioning refrigerant
R-134a (HFC) refrigerant and special
PAG lubricating oil are used in the air con-
ditioning system.
!Using engine oils and oil filters of specifica-
tion 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.
Please follow Maintenance System recommen-
dations for scheduled oil changes. Failure to do
so will result in engine or emission control
system damage not covered by the
Mercedes-Benz Limited Warranty.
!Do not blend oil additives with engine oil.
They may damage the engine. Damage or mal-
functions resulting from blending oil additives
are not covered by the Mercedes-Benz Limited
Warranty.
!Never use R-12 (CFC) or mineral-based
lubricating oil, otherwise damage to the system
will occur.

455 Technical data
Fuels, coolants, lubricants, etc.
Fuel requirements
Only use premium unleaded fuel:

The octane number (posted at the
pump) must be 91 min. It is an
average of both the Research Octane
Number (RON) and the Motor Octane
Number (MON): (RON+MON)/2. This is
also known as the ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates
such as ethanol, IPA, IBA, and TBA can
be used provided the ratio of any one of
these oxygenates to gasoline does not
exceed 10%; MTBE not to 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 manufac-
turers is carbon build-up caused by gaso-
line. Mercedes-Benz only 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:

Warm-up hesitation

Unstable idle

Knocking/pinging

Misfire

Power lossIn areas where carbon deposits may be
encountered due to lack of availability of
gasolines which contain these additives,
Mercedes-Benz recommends the use of
additives approved by us for use on
Mercedes-Benz vehicles. Refer to Factory
Approved Service Products pamphlet
(USA only) or contact an authorized
Mercedes-Benz Center for a listing of
approved product(s). Follow directions on
product label.
Do not blend other fuel additives with fuel.
This only results in unnecessary costs and
may be harmful to 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.