Page 339 of 394
339 Technical data
Spare 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.
Consumer information
Page 345 of 394

345 Technical data
Rims and tires
Rims and tires
Only use tires and rims which have been
specifically developed for your vehicle and
tested and approved by Mercedes-Benz.
Other tires and rims can have detrimental
effects, such as
poor handling characteristics
increased noise
increased fuel consumption
Same size tires
!Moreover, tires and rims not approved
by Mercedes-Benz may, under load, ex-
hibit dimensional variations and differ-
ent tire deformation characteristics
that could cause them to come into
contact with the vehicle body or axle
parts. Damage to the tires or the vehi-
cle may be the result.
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Center. A tire inflation
pressure table is located on the fuel fill-
er cap of the vehicle. The tire pressure
should be checked regularly and
should only be adjusted on cold tires.
Follow tire manufacturer’s mainte-
nance recommendation included with
vehicle.
CLK 320
CLK 500 /
CLK 320 with Sport Package*
CLK 55 AMG
Rims (light alloy)
7J x 16 H2
71/2 J x 17 H2
71/2 Jx17H2
Wheel offset
1.45 in (37 mm)
1.45 in (37 mm)
1.45 in (37 mm)
Winter tires (radial-ply
tires)
205/55 R 16 91 H M+S
225/45 R 17 91 H M+S
1
1Must not be used with snow chains.
225 / 45 R17 91 H M+S
1
Page 346 of 394
346 Technical dataRims and tiresMixed size tires
CLK 320
CLK 500 /
CLK 320 with Sport Package*
CLK 55 AMG
Front axle:Rims (light alloy)
7 J x 16 H2
71/2 J x 17 H2
71/2 J x 17 EH2
Wheel offset
1.45 in (37 mm)
1.45 in (37 mm)
1.45 in (37 mm)
Summer tires
(radial-ply tires)
205/55 R 16 91 H
225/45 R 17 91 W
225/45 R 17 91 Y
Rear axle:Rims (light alloy)
8 J x 16 H2
81/2 J x17 H2
81/2 J x17 EH2
Wheel offset
1.26 in (32 mm)
1.18 in (30 mm)
1.18 in (30 mm)
Summer tires (radial-ply
tires)
225/50 R 16 92 H
1
245/40 R 17 91 W
1
1Must not be used with snow chains.
245/40 R 17 91 Y
1
Page 347 of 394
347 Technical data
Rims and tires
Minispare wheel
CLK 320
CLK 500 /
CLK 320 with Sport Package*
CLK 55 AMG
Rim
3.5 B x 16 H2
3.5 B x 17 H2
3.5 B x 17 H2
Wheel offset
0.67 in (17 mm)
0.67 in (17 mm)
0.67 in (17 mm)
Tire
T 125/90 R 16 98 M
1
1Must not be used with snow chains.
T 125/80 R 17 99 M
1
T 125/90 R 17 99 M
1
Page 358 of 394

358 Technical dataConsumer information
Consumer informationThe following text is published as required
of all manufacturers of passenger cars un-
der Title 49, Code of U.S. Federal Regula-
tions, Part 575 pursuant to the “National
Traffic and Motor Vehicle Safety Act of
1966”.Uniform tire quality grading
Quality grades can be found, where appli-
cable, on the tire sidewall between tread
shoulder and maximum section width. For
example:
All passenger car tires must conform to
federal safety requirements in addition to
these grades.Tread wear
The tread wear grade is a comparative rat-
ing based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. For ex-
ample, a tire graded 150 would wear one
and one-hal f ( 1½ ) ti m es as wel l on the g ov-
ernment course as a tire graded 100. The
relative performance of tires depends
upon the actual conditions of their use,
however, and may depart significantly
from the norm due to variations in driving
habits, service practices and differences in
road characteristics and climate.Traction
The traction grades, from highest to lowest
are AA, A, B, and C. Those grades repre-
sent the tire’s ability to stop on wet pave-
ment as measured under controlled
conditions on specified government test
surfaces of asphalt and concrete. A tire
marked C may have poor traction perfor-
mance.Tread wear
Traction
Temperature
200
AA
A
Warning!
G
The traction grade assigned to this tire is
based on straight ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
Page 359 of 394

359 Technical data
Consumer information
Temperature
The temperature grades are A (the high-
est), B, and C, representing the tire’s resis-
tance to the generation of heat and its
ability to dissipate heat when tested under
controlled conditions on a specified indoor
laboratory test wheel. Sustained high tem-
perature can cause the material of the tire
to degenerate and reduce tire life, and ex-
cessive temperature can lead to sudden
tire failure. Grade C corresponds to a level
of performance which all passenger car
tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades
B and A represent higher levels of perfor-
mance on the laboratory test wheel than
the minimum required by law.
Warning!
G
The temperature grade for this tire is estab-
lished for a tire that is properly inflated and
not overloaded. Excessive speed, underin-
flation, or excessive loading, either sepa-
rately or in combination, can cause
excessive heat build-up and possible tire
failure.
Page 366 of 394

366 Technical termsTele Aid System
(T
elematic A
larm I
dentification on D
e-
mand)
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.
Telematics*
A combination of the terms “telecom-
munications” and “informatics”.Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
Tire speed rating
Part of tire designation; indicates the
speed range for which a tire is ap-
proved.
Traction
Force exerted by the vehicle on the
road via the tires.VIN
(V
ehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Voice control system*
Voice control system for car phones,
portable cell phones and audio sys-
tems (radio, CD, etc.).
Page 373 of 394

373 Index
Headlamps 51
Immobilizer 79
Interior lighting delayed switch-off 132
Rear window defroster 162
Residual heat 164
Seat heater 101
Tow-away alarm 81
Deactivating steering wheel gearshift con-
trol 148
Deceleration
With Distronic* 199
Deep water see Standing water 247
Defogging
Windshield 158
Defrosting 159
Delayed switch-off
Interior lighting 132
Dialing
A number (telephone) 139
Difficulties
While driving see Problems while driv-
ing 49
With starting 44
Digital speedometer 119
Direction of rotation (tires) 261Discharged battery
Jump starting 332
Disconnecting
Vehicle battery 330
Display
Selecting 127, 128
Display elements
Audio system 166
Displays
Digital speedometer 119
Distronic* 198
Messages 256, 283
Selecting 127
Service indicator 266
Showing malfunctions 123
Distance
Decreasing in Distronic* 204
Increasing in Distronic* 204
Setting in Distronic* 203
Warning function 204
Distance to empty (range)
Calling up 136Distance warning function* 204
Activating 205
Deactivating 205
DTR* warning lamp 204
Intermittent warning sound 204
Symbol in multifunction display 122
Distronic* 196, 362
Activated 200
Activating 201
Calling up settings 121, 199
Cleaning system sensor 271
Cruise control lever 200
Deactivated 200
Deactivating 203
Deceleration 199
Decreasing distance 204
Decreasing time interval 203
Displays in the speedometer dial 198
Distance warning function 204
Driving hints 205
Fine adjustment 202
Increasing distance 204
Increasing time interval 203
Intermittent signal tone 198
Menu 199
Messages in display 292