Page 442 of 481
441 Technical data
Rims and tires
Same size tiresModel
SLK 280
SLK 280
SLK 350
Summer tires
1
1Radial-ply tires
-
-
Rims (light alloy)
-
-
Wheel offset
-
-
Winter tires
1,2
2Not available as factory equipment.
205/55 R16 91H M+S.
225/45 R17 91H M+S.
Rims (light alloy)
7Jx16H2
7.5 J x 17 H2
Wheel offset
1.34 in (34 mm)
1.42 in (36 mm)
Winter tires*
1,2,3
3Must be used in conjunction with Run Flat Indicator* only.
225/45 R17 91H M+S.MOExtended
Rims (light alloy)
7.5 J x 17 H2
Wheel offset
1.42 in (36 mm)
Page 444 of 481
443 Technical data
Rims and tires
Mixed size tires
SLK 280
SLK 280*
SLK 350
Front axle:
Rims (light alloy)
7 J x 16 H2
7.5 J x 17 H2
Wheel offset
1.34 in (34 mm)
1.42 in (36 mm)
Summer tires
1
205/55 R16 91W
225/45 R17 91W
or
225/45 R17 91W MOExtended
2
Rear axle:Rims (light alloy)
8 J x16 H2
8.5 J x17 H2
Wheel offset
1.18 in (30 mm)
1.18 in (30 mm)
Summer tires
1,3
225/50 R16 92W
245/40 R17 91W
or
245/40 R17 91W MOExtended
2
1Radial-ply tires2Must be used in conjunction with Run Flat Indicator* only.3Must not be used with snow chains.
Page 445 of 481
444 Technical dataRims and tires
SLK 280 (Sport Package*)
SLK 350 (Sport Package*)
SLK 55 AMG
SLK 55 AMG (Performance Package*)
Front axle:
Rims (light alloy)
7.5 J x 17 H2
7.5 J x 18 H2
Wheel offset
1.46 in (37 mm)
1.46 in (37 mm)
Summer tires
1,3
1Radial-ply tires
225/45 R17 91W
or
225/45 R17 91W MOExtended
2
2Must be used in conjunction with Run Flat Indicator* only.
225/40 ZR18 92Y XL (Extra Load)
Rear axle:
Rims (light alloy)
8.5 J x17 H2
8.5 J x18 H2
Wheel offset
1.18 in (30 mm)
1.18 in (30 mm)
Summer tires
1,3
3Must not be used with snow chains.
245/40 R17 91W
or
245/40 R17 91W MOExtended
2
245/35 ZR18 92Y XL (Extra Load)
Page 446 of 481
445 Technical data
Rims and tires
Spare wheel with collapsible tire
All models
Rim (light alloy)
4.5 B x 17 H2
Wheel offset
0.47 in (12 mm)
Collapsible tire
145/70-17 92P
1
1Must not be used with snow chains.!Please compare the recommended tire
inflation pressure for your vehicle with
the tire inflation pressure on the yellow
label located on the spare wheel rim.
If the tire inflation pressure on the yel-
low label on the spare wheel rim differs
from the values given in this Operator’s
Manual, inflate the collapsible tire to
the recommended tire inflation pres-
sure given on the yellow label on the
spare wheel rim.
iPlease note that the tire inflation
pressure of the collapsible tire differs
from the tire inflation pressure of the
road tires.
Inflate the collapsible tire to approxi-
mately 51 psi (3.5 bar).iThe SLK 55 AMG with Performance
Package* does not have a spare wheel.
The SLK 55 AMG with Performance
Package* is equipped with TIREFIT
(page 408).
Page 459 of 481

458 Technical termsCAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.
Cold tire inflation pressure
(
page 344)
Collapsible tire
An especially compact spare tire that
must be inflated with a provided air
pump before using. It should only be
used to bring the vehicle to the nearest
service station.COMAND*
(Co
ckpit Man
agement and
D
ata System)
Information and operating center for
vehicle sound and communications
systems, including the radio,
CD changer and navigation system, as
well as other optional equipment (e.g.
telephone).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.Curb weight
(
page 344)
DOT
(Department o
f Transportation)
(
page 344)
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP®(Electronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
Page 461 of 481

460 Technical termsLine of fall
The direct line an object moves down-
hill when influenced by the force of
gravity alone.
Locking knob
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the locking knob down
on an individual door from inside locks
that door.
Maintenance System (U.S. vehicles)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Maintenance
System in your vehicle tracks distance
driven and the time elapsed since your
last maintenance service, and calls for
the next maintenance service accord-
ingly.Maximum loaded vehicle weight
(
page 345)
Maximum load rating
(page 345)
Maximum tire inflation pressure
(page 345)
Memory function*
Used to store three individual seat,
steering wheel and mirror positions.
MON
(Motor 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.Multifunction display
Two display fields in the instrument
cluster used to present information
provided by the control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Normal occupant weight
(
page 345)
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.
Page 462 of 481

461 Technical terms
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
Transfer case
Drive shaft
Differential
Axle shafts/axles
Production options weight
(
page 345)Program mode selector switch*
Used to switch the automatic transmis-
sion between standard operation (S)
and comfort operation (C).
Vehicles with steering wheel gearshift
control and manual shift program: in
addition toS andC (for regularS
or comfortC operation, see above),
you can useM for manual shift pro-
gram.
PSI
(P
ounds per s
quare i
nch)
(
page 345)
Recommended tire inflation pressure
(page 345)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, air bags
and child restraint systems. As inde-
pendent systems, their protective func-
tions complement one another.
Rim
(
page 345)
Retractable hardtop
Hardtop that can be opened and closed
at the push of a button and stored in
the trunk.
Page 466 of 481

465 Index
A
ABS 82, 457
Display message 370
Indicator lamp 362
Accessory weight 344
Accident 58
Adjusting (Getting started) 38
Air bags 65
BabySmart
TM
77, 457
Children 66
Front 70
Head-thorax 71, 459
Kneebag 70
Passenger front air bag off indicator
lamp 78
Safety guidelines 68
Air conditioning
Automatic climate control* 200
Climate control 187
Air conditioning refrigerant 451
Air pressure see Tire inflation pressure
AIRSCARF neck level heating*
(Seats) 105, 457
Alarm system see Anti-theft systems
Alignment bolt (Vehicle tool kit) 388,
415, 457Anticorrosion/antifreeze 454
Antilock brake system see ABS
Anti-theft systems 87
Alarm system 87
Immobilizer 87
Tow-away alarm 88
Ashtray 269
Aspect ratio 344
AUDIO menu (Control system) 129
Audio system 203
Audio and telephone*, operation 203
CD changer* 223
CD operation 219
Introduction to satellite radio*
(USA only) 214
MP3 220
Operating and display elements 204
Auto-dimming* for rear view mirrors 174
Automatic climate control*
Air conditioning 200
Automatic mode, basic setting 194
Control panel 192
Deactivating 194
Overview 190Automatic locking
Control system 147
When driving 101
Automatic shift program* 163
Automatic transmission* 157
Automatic transmission fluid
(ATF) 313
Driving 53
Emergency operation
(Limp Home Mode) 172
Fluid level 313
Gear ranges 160
Gear selector lever 157
Gear selector lever (Unlocking
manually) 396
Gear shifting malfunctions 172
Gearshift pattern 51
Kickdown 162
Manual shifting 164
One-touch gearshifting 164
Program mode selector switch 163