Page 347 of 506

346 OperationVehicle careWe have selected car-care products and
compiled recommendations which are
specially matched to our vehicles and
which always reflect the latest technology.
You can obtain Mercedes-Benz approved
car-care products at an authorized
Mercedes-Benz Center.
Scratches, corrosive deposits, corrosion or
damage due to negligent or incorrect care
cannot always be removed or repaired with
the car-care products recommended here.
In such cases it is best to seek aid at an
authorized Mercedes-Benz Center.
The following topics deal with the cleaning
and care of your vehicle and give important
“how-to” information as well as references
to Mercedes-Benz approved car-care prod-
ucts.Power washer
When using a power washer for cleaning
the vehicle, always observe the manufac-
turer’s operating instructions.Tar stains
Quickly remove tar stains before they dry
and become more difficult to remove. A tar
remover is recommended.
Paintwork, painted body components
Mercedes-Benz approved Paint Care
should be applied when water drops on the
paint surface do not “bead up”, normally
every three to five months, depending on
climate and washing detergent used.
Mercedes-Benz approved Paint Cleaner
should be applied if the paint surface
shows signs of embedded dirt (i.e. loss of
gloss).
Do not apply any of these products or wax
if your vehicle is parked in the sun or if the
hood is still hot.
Use the appropriate MB-Touch-Up Stick
for quick and provisional repairs of minor
paint damage (i.e. chips from stones, vehi-
cle doors, etc.).
iVehicles with KEYLESS-GO*:
If a door handle is hit by a strong jet of
water, and a SmartKey with
KEYLESS-GO* is in close proximity, i.e.
within approximately 3 ft
(approximately 1 m), the vehicle could
be inadvertently locked or unlocked. !Never use a round nozzle to
power-wash tires. The intense jet of
water can result in damage to the tire.
Always replace a damaged tire.
Always keep the jet of water moving
across the surface. Do not aim directly
at electrical parts, electrical connec-
tors, seals, or other rubber parts.
Page 440 of 506
439 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.
Page 446 of 506

445 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
!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 placard with
the recommended tire inflation pres-
sures is located on the driver’s door
B-pillar. Some vehicles may have sup-
plemental tire pressure information for
driving at high speeds (
page 323) or
for vehicle loads less than the maxi-
mum loaded vehicle condition. If such
information is provided, it can be found
on the placard located on the inside of
the fuel filler flap. The tire inflation
pressure should be checked regularly
and should only be adjusted on cold
tires. Follow tire manufacturer’s main-
tenance recommendation included
with vehicle.
Page 447 of 506
446 Technical dataRims and tiresSame size tires
16" tires
17" tires
CLK 320
CLK 500
CLK 320 (Appearance Package)
CLK 55 AMG
Rims (light alloy)
7J x 16 H2
-
-
Wheel offset
1.45 in (37 mm)
-
-
Winter tires (radial-ply
tires)
205/55 R16 91H M+S
-
-
CLK 320 (Appearance Package)
CLK 500
CLK 55 AMG
Rims (light alloy)
71/2 Jx17H2
71/2 Jx17 H2
71/2 Jx17H2
Wheel offset
1.42 in (36 mm)
1.45 in (37 mm)
1.45 in (37 mm)
Winter tires (radial-ply
tires)
225/45 R17 91H M+S
225/45 R17 91H M+S
225 / 45 R17 91H M+S
Page 448 of 506
447 Technical data
Rims and tires
Mixed size tires
CLK 320
CLK 320 (Appearance Package)
CLK 500
Front axle:Rims (light alloy)
7 J x 16 H2
71/2 J x 17 H2
71/2 J x 17 H2
Wheel offset
1.45 in (37 mm)
1.42 in (36 mm)
1.45 in (37 mm)
1
1Applies to AMG wheel only.Summer tires
(radial-ply tires)
-
225/45 R17 91W
225/45 ZR17 91Y
All-season tires
(radial-ply tires)
205/55 R16 91H M+S
-
-
Rear axle:Rims (light alloy)
8 J x 16 H2
81/2 J x17 H2
81/2 J x17 H2
Wheel offset
1.26 in (32 mm)
1.18 in (30 mm)
1.18 in (30 mm)
Summer tires (radial-ply
tires)
-
245/40 R17 91W
2
2Must not be used with snow chains.
245/40 ZR17 91Y
2
All-season tires
(radial-ply tires)
225/50 R16 92H M+S
2
-
-
Page 449 of 506
448 Technical dataRims and tires
CLK 55 AMG
Front axle:Rims (light alloy)
71/2 Jx18EH2
Wheel offset
1.45 in (37 mm)
1
Summer tires
(radial-ply tires)
225/40 ZR18 92Y XL (Extra Load)
2
All-season tires
(radial-ply tires)
-
Rear axle:Rims (light alloy)
81/2 Jx18EH2
Wheel offset
1.18 in (30 mm)
Summer tires (radial-ply
tires)
255/35 ZR18 94Y XL (Extra Load)
2
All-season tires
(radial-ply tires)
-
1Applies to AMG wheel only.2Must not be used with snow chains.
Page 450 of 506
449 Technical data
Rims and tires
Minispare wheel
CLK 320
CLK 320 (Appearance Package)
CLK 500
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 98M
1
1Must not be used with snow chains.
T 125/80 R 17 99M
1
T 125/80 R 17 99M
1
Page 472 of 506

471 Index
Central locking
Automatic 110
From inside 110
Locking from inside 110
Switch 110
Switching on/off
(control system) 155
Unlocking from inside 110
Central locking switch 110
Certification label 442
Changing
CDs 218
Key setting 156
Charcoal filter 197
Activating 197
Deactivating 197
Charging
Vehicle battery 428
CHECK ENGINE
malfunction indicator lamp 356
Checking
Coolant level 310
Oil level 304, 307
Tire inflate pressure 304
Vehicle lighting 304Child safety 72
Air bags 62
Front passenger front
air bag off indicator lamp 79
Infant and child
restraint systems 67, 72
LATCH child seat anchors 80
OCS 75
Child safety switch see
Blocking of rear window operation
Child seat anchors see
LATCH child seat anchors
Cigarette lighter 274Cleaning 345
Cup holder 351
Gear selector lever 351
Hard plastic trim items 351
Headlamps 176
Headliner 351
Instrument cluster 351
Leather upholstery 352
Light alloy wheels 350
Nubuck leather upholstery
(CLK 55 AMG) 352
Parktronic system* sensor 349
Plastic and rubber parts 352
Seat belts 351
Soft top 347
Steering wheel 351
Upholstery 352
Windows 350
Windshield 53
Wiper blades 349
Wood trims 352
Cleaning and care of vehicle 345
Cleaning tires 315
Climate control 180
Clock 25, 148