octane MERCEDES-BENZ SLK320 2003 R170 Owner's Manual

11 Introduction
Operator’s Manual
Operating your vehicle outside the USA or Canada
If you plan to operate your vehicle in for-
eign countries, please be aware that:

Service facilities or replacement parts
may not be readily available,


unleaded gasoline for vehicles with cat-
alytic converters may not be available;
the use of leaded fuels will damage the
catalysts,


gasoline may have a considerably low-
er octane rating, and improper fuel can
cause engine damage.Certain Mercedes-Benz models are avail-
able for delivery in Europe under our Euro-
pean Delivery Program. For details, consult
your authorized Mercedes-Benz Center or
write to:
In the USA:
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada:
Mercedes-Benz Canada, Inc.
European Delivery Department
849 Eglinton Avenue East
Toronto, Ontario M4G 2L5

169 Operation
At the gas station
At the gas station
The fuel filler flap is located on the
right-hand side of the vehicle towards the
rear. Locking/unlocking the vehicle with
the remote control automatically
locks/unlocks the fuel filler flap.
Fuel filler flap
Remove the key from the steering lock.

Open the fuel filler flap by pushing at
the point indicated by the arrow.
The fuel filler flap springs open.

Turn the fuel cap to the left and hold on
to it until possible pressure is released.

Take off the cap and set it in the recess
on the fuel filler flap.
To prevent fuel vapors from escaping
into open air, fully insert filler nozzle
unit.

Only fill your tank until the filler nozzle
unit cuts out – do not top up or overfill.

Replace the fuel cap by turning it to the
right.
Warning!
G
Gasoline is highly flammable and poisonous.
It burns violently and can cause serious inju-
ry. Whenever you are around gasoline, avoid
inhaling fumes and skin contact, extinguish
all smoking materials. Never allow sparks,
flame or smoking materials near gasoline!
iUse only premium unleaded gasoline
with a minimum Posted Octane Rating
of 91 (average of 96 RON / 86 MON).
Information on gasoline quality can
normally be found on the fuel pump.
More information on gasoline can be
found in the Factory Approved Service
Products pamphlet.Warning!
G
Overfilling of the fuel tank may create pres-
sure in the system which could cause a gas
discharge. This could cause the gas to spray
back out when removing the fuel pump noz-
zle, which could cause personal injury.


270 Technical dataFuels, coolants, lubricants etc.
Model
Capacity
Fuels, coolants, lubricants etc.
Fuel tank
including a reserve of
approx. 15.8 US gal (60.0 l)
approx. 2.1 US gal (8.0 l)
Premium unleaded gasoline:
Posted Octane 91 (Avg. of 96 RON / 86 MON)
Air conditioner system
R-134a refrigerant and special PAG lubricant oil (never R-12)
Windshield washer and
headlamp cleaning sys-
tem*
7.4 US qt (7.0 l)
MB Windshield washer concentrate
1
1Use MB Windshield Washer Concentrate“S” and water for temperatures above freezing or MB Windshild Washer Concentrate “S” and commercially available premixed
windshild washer solvent/antifreeze for temperatures below freezing. Follow suggested mixing ratios (
page 275).

272 Technical dataFuels, coolants, lubricants etc.Premium unleaded gasoline
Fuel requirements
Use only premium unleaded gasoline
meeting ASTM standard D 439:

The octane number (posted at the
pu mp ) m us t b e 91 mi n. It is an a ve ra ge
of both the Research (R) octane num-
ber and the Motor (M) octane number:
(R+M) / 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 recommends only the
use of quality gasoline containing additives
that prevent the build up of carbon depos-
its.
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 loss
Do not blend any specific fuel additives
with fuel. This only results in unnecessary
costs and may be harmful to engine opera-
tion.
!To maintain the engine’s durability and
performance, premium unleaded gaso-
line must be used. If premium unleaded
is not available and low octane fuel is
used, follow these precautions:

Have the fuel tank only partially
filled with unleaded regular and fill
up with premium unleaded as soon
as possible.


Avoid full throttle driving and abrupt
acceleration.


Do not exceed an engine speed of
3000 rpm if the vehicle is loaded
with a light load such as two per-
sons and no luggage.


Do not exceed
2/3of maximum ac-
celerator pedal position if the vehi-
cle is fully loaded or operating in
mountainous terrain.

281 Technical terms
Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.
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.Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this
engine speed range, as it may result in
serious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing


engine


clutch/torque converter


transmission


drive shaft


axle shafts/axlesProgram mode selector switch
Used to switch the automatic transmis-
sion between standard operationS and
winter operationW.
Remote Vehicle Diagnostics
Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dent systems, their protective func-
tions complement one another.

282 Technical termsRetractable hardtop
Hardtop that can be opened and closed
at the push of a button and stored in
the trunk.
Roll bar
Occupant protection system which
consists of tubular steel sheathed in
plastic.
RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line 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.Shift lock
When the vehicle is parked, this lock
prevents the transmission selector le-
ver from being moved out of positionP
without key turned and brake pedal de-
pressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.
Tele Aid System
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.The Tele Aid system is operational pro-
viding that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
TIREFIT
Accessory for emergency and tempo-
rary tire repair. The TIREFIT kit consists
of a container with sealant material, a
filler hose, a valve stem tool, a valve in-
sert, and an air compressor.

294 IndexManual transmission 91
Shifting into reverse 92
Starting with 40
Microphone
Hands-free microphone 25
Mirrors
Adjusting 35
Automatic antiglare for rear view
mirror 99
Exterior rear view mirror 35
Inside rear view mirror 35
MON 169
MON (Motor Octane Number) 281
N
Night security illumination 87
O
Occupant safety 52
Airbags 53
Children and airbags 54
Children in the vehicle 60
Fastening the seat belt 37
Infant and child restraint systems 60
Seat belts 37, 55
Odometer, main 21
OilAdding 175
Checking level 172
Consumption 172
Dipstick 172
Filler neck 175
Viscosity 280
Oil level
Checking 170
One-touch gearshifting 94
Canceling gear range limit 94
Downshifting 94
Upshifting 94
Opening
Ashtray 142
Doors from the inside 78
Fuel filler flap 169
Fuel filler flap manually 213
Glove box 139
Hardtop in an emergency 215
Hood 171
Retractable hardtop 215
Side windows 127
Trunk 77
Windows 127
Operating
Audio system 111Garage door opener 155
Integrated remote control 155
Radio transmitters 166
Safety 14
Telephone 111
Telephone* 123
Vehicle outside the USA and
Canada 11
Operating safety 14
Audio system 111
Operator’s Manual 8
Ornamental moldings 189
Outside temperature indicator 90
Overdue service 186
Overhead control panel 25
Overspeed range 281
P
Paintwork 188
Panic alarm 65
Panic button on remote control 65
Parcel net
In front passenger footwell 141
Parking 47, 161
Parking brake 42, 47
Engaging 47
Releasing 42

296 IndexRemote control
Battery check lamp 75
Changing batteries 212
Checking the batteries 76
Global locking 75
Key 74
Restoring to factory setting 75
Selective setting 75
Unlocking with 28
Remote control with folding key
Locking and unlocking 74
Remote control, key
Factory setting 75
Global unlocking 75
Remote controls
Integrated 153
Remote door unlock
With Tele Aid 151
Remote Vehicle Diagnostics 281
Removing
Vehicle battery 246
Wheel 240
Wiper blade insert 228
Wiper blades 228
Replacing
Backup lamp bulbs 225Brake lamp bulbs 225
Bulbs 221
Front lamp bulbs 223
Front turn signal bulbs 223
Fuses 253
High beam bulbs 223
License plate lamp bulbs 226
Low beam bulbs 223
Parking lamp bulbs 224
Rear fog lamp bulbs 225
Rear lamp bulbs 222, 225
Rear turn signal bulbs 225
Side marker lamp bulbs 225
Standing lamp bulbs 224
Wiper blades 228
Replacing, Bulbs
Xenon* headlamps 223
Reporting
Safety defects 16
Resetting
Service indicator (FSS) 186
Trip odometer 89
Residual heat utilization 107, 281
Residual ventilation 107
REST (Residual engine heat
utilization) 281Restraint system 281
Restraint system see Infant and child re-
straint systems 60
Retractable hardtop 129, 282
Closing 132, 215
Locking after raising/lowering 133
Opening 131, 215
Problems when operating 133
Reverse (manual transmission)
Shifting into 92
Rims 261
Roadside assistance 10
Tele Aid 148
Roll bar 282
Rolling code programming 154
RON 169
RON (Research Octane Number) 282
Rotating wheels 182
Rubber parts
Cleaning 192
S
Safety
Occupant 52
Safety belts see Seat belts 37
Safety defects
Reporting 16