Page 467 of 514
466 Technical dataThe “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, man-
ufactured 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 dura-
bility or safety. 
         
        
        
     
        
        Page 468 of 514
467 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 autho-
rized Mercedes-Benz Center will exchange 
or repair any defective parts originally in-
stalled 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 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. 
         
        
        
     
        
        Page 469 of 514
468 Technical dataIdentification labels1Certification label (includes 
Paintwork code)2Vehicle Identification Number (VIN)3Emission control information label, 
includes both federal and California 
certification exhaust emission 
standards
4Vacuum line routing diagram label
5VIN, visible (lower edge of windshield)
6Engine number (engraved on engine)
iWhen ordering parts, please specify ve-
hicle identification and engine 
numbers. 
         
        
        
     
        
        Page 470 of 514
469 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
CLK 350
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)
CLK 500/CLK 55 AMG
1Automatic belt tensioner
2Power steering pump
3Air conditioning compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley 
         
        
        
     
        
        Page 471 of 514

470 Technical dataEngineModel
CLK 350 (209.456)
1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
CLK 500 (209.475)
1
CLK 55 AMG (209.476)
1
Engine
272
113
113
Mode of operation
4-stroke engine, gasoline injec-
tion
4-stroke engine, gasoline injec-
tion
4-stroke engine, gasoline injec-
tion
No. of cylinders
6
8
8
Bore
3.66 in (92.90 mm)
3.82 in (97.00 mm)
3.82 in (97.00 mm)
Stroke
3.39 in (86.00 mm)
3.31 in (84.00 mm)
3.62 in (92.00 mm)
Total piston displacement
213.5cuin (3498cm
3)
303.0 cu in (4 966 cm
3)
331.8 cu in (5 439 cm
3)
Compression ratio
10.5:1
10:1
11:1
Output acc. to SAE J 1349
268 hp / 6 000 rpm
2
(200 kW / 6 000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
302 hp / 5 600 rpm
2
(225 kW / 5 600 rpm)
362 hp / 5 750 rpm
2
(270 kW / 5 750 rpm)
Maximum torque acc. to SAE J 
1349
258lb-ft/2400-5000rpm
(350 Nm / 2 400 - 5 000 rpm)
339 lb-ft / 2 700 - 4 250 rpm
(460 Nm /2 700 - 4 250 rpm)
376lb-ft/4000rpm 
(510 Nm / 4 000 rpm)
Maximum engine speed
6 300 rpm
6 300 rpm
6 700 rpm
Firing order
1-4-3-6-2-5
1-5-4-2-6-3-7-8
1-5-4-2-6-3-7-8
Poly-V-belt
2 404 mm
2 380 mm
2 380 mm 
         
        
        
     
        
        Page 472 of 514

471 Technical data
Rims and tires
Rims and tires
!
Only use tires which have been tested 
and approved by Mercedes-Benz. Tires 
approved by Mercedes-Benz are devel-
oped to provide best possible perfor-
mance in conjunction with the driving 
safety systems on your vehicle such as 
ABS or ESP
®. Tires specially developed 
for your vehicle and tested and ap-
proved by Mercedes-Benz can be iden-
tified by finding the following on the 
tire’s sidewall:
MO = M
ercedes-Benz O
riginal 
equipment tires
AMG vehicles:
Does not apply to all approved tires 
on AMG vehicles. For information 
on tested and approved tires for 
AMG vehicles, contact an autho-
rized Mercedes-Benz Center.
MOE = M
ercedes-Benz O
riginal 
E
xtended (tires with limited run-flat 
characteristics) original equipment 
tires
Using tires other than those approved 
by Mercedes-Benz may result in dam-
age that is not covered by the 
Mercedes-Benz Limited Warranty.iFor information on driving with 
MOExtended tires, see 
“MOExtendedsystem*” (
page 345).
!Using tires other than those approved 
by Mercedes-Benz can have detrimen-
tal effects, such as
poor handling characteristics
increased noise
increased fuel consumption
Moreover, tires and rims not approved 
by Mercedes-Benz may, under load, 
exhibit dimensional variations and dif-
ferent 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. 
         
        
        
     
        
        Page 473 of 514

472 Technical dataRims and tires
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 inflation pressure infor-
mation for driving at high speeds 
(page 340) or for vehicle loads less 
than the maximum loaded vehicle con-
dition (
page 339). If such information 
is provided, it can be found on the plac-
ard located on the inside of the fuel fill-
er flap. The tire inflation pressure 
should be checked regularly and 
should only be adjusted on cold tires. 
Follow tire manufacturer’s mainte-
nance recommendation included with 
vehicle.
iThe following pages also list the ap-
proved wheel rim and tire sizes for 
equipping your vehicles with winter 
tires. Winter tires are not available as 
standard or optional factory equip-
ment, but can be purchased from an 
authorized Mercedes-Benz Center.
Depending on vehicle model and the 
standard or optional factory-equipped 
wheel rim/tire configuration on your 
vehicle (Appearance Package, Sport 
Package etc.), equipping your vehicle 
with winter tires approved for your 
vehicle model may also require the 
purchase of two or four wheel rims of 
the recommended size for use with 
these winter tires. See an authorized 
Mercedes-Benz Center for more 
information.  
         
        
        
     
        
        Page 474 of 514
473 Technical data
Rims and tires
Same size tires
CLK 350
CLK 500
Rims (light alloy)
7.5 J x 17 H2
7.5 J x 17 H2
Wheel offset
1.42 in (36 mm)
1.45 in (37 mm)
Winter tires
1,3
1Radial-ply tires
225/45 R17 91 H M+S.
225/45 R17 91 H M+S.
Winter tires
1,2,3
2Must be used in conjunction with Run Flat Indicator* only. 3Not available as factory equipment.
225/45 R17 91 H M+S.MOExtended
225/45 R17 91 H M+S.MOExtended