MERCEDES-BENZ SLK55AMG 2005 R171 Owner's Manual

411 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
SLK 350
1Idler pulley
2Idler pulley
3Automatic belt tensioner
4Power steering pump
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)
SLK 55 AMG
1Automatic belt tensioner
2Power steering pump
3Air conditioning compressor
4Crankshaft
5Coolant pump
6Generator (alternator)
7Idler pulley

412 Technical dataEngineModel
SLK 350 (171.456)
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.
SLK 55 AMG (171.473)
1
Engine
272
113
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
6
8
Bore
3.66 in (92.90 mm)
3.82 in (97.00 mm)
Stroke
3.39 in (86.00 mm)
3.60 in (92.00 mm)
Total piston displacement
213.5 cu in (3 498 cm
3)
331.8cuin (5439cm
3)
Compression ratio
10.7:1
11:1
Output according 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.
355 hp / 5 750 rpm
2
(265 kW / 5 750 rpm)
Maximum torque according to
SAE J 1349
258 lb-ft / 2 400 - 5 000 rpm
(350 Nm / 2 400 - 5 000 rpm)
376 lb-ft / 4 000 rpm
(510 Nm / 4 000 rpm)
Maximum engine speed
6500 rpm
6 700 rpm
Firing order
1-4-3-6-2-5
1-5-4-2-6-3-7-8
Poly-V-belt
2404 mm
2 380 mm

413 Technical data
Rims and tires
Rims and tires
!
Only use tires which have been specifi-
cally developed for your vehicle and
tested and approved by
Mercedes-Benz. Tires approved by
Mercedes-Benz are developed to pro-
vide best possible performance in con-
junction with the driving safety
systems on your vehicle such as ABS or
ESP. Tires specially developed for your
vehicle and tested and approved by
Mercedes-Benz can be identified by
finding the following on the tire’s side-
wall:

MO = M
ercedes-Benz O
riginal
equipment tires


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 312).
!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.
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 307) or for vehicle loads less
than the maximum loaded vehicle con-
dition. 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 maintenance recom-
mendation included with vehicle.

414 Technical dataRims and tiresSame size tires
17" tires
SLK 350
SLK 350 (Sport Package*)
SLK 55 AMG
Rims (light alloy)
71/2J x 17 H2
71/2J x 17 H2
Wheel offset
1.42 in (36 mm)
1.46 in (37 mm)
Summer tires (radial-ply tires)
-
-
Winter tires (radial-ply tires)
225/45 R17 91H M+S
or
225/45 R17 91H M+S MOExtended
1
1Must be used in conjunction with Run-Flat Indicator* only.
205/50 R17 89H M+S
2
or
225/45 R17 91H M+S
2
or
225/45 R17 91H M+S MOExtended
1,2
2For use with snow chains contact an authorized Mercedes-Benz Center.

415 Technical data
Rims and tires
18" tires
SLK 55 AMG
Rims (light alloy)
71/2J x 18 H2
Wheel offset
1.46 in (37 mm)
Summer tires (radial-ply tires)
-
Winter tires (radial-ply tires)
225/40 R18 92H XL (Extra Load) M+S
1
1For use with snow chains contact an authorized Mercedes-Benz Center.

416 Technical dataRims and tiresMixed size tires
SLK 350
SLK 350 (Sport Package*)
Front axle:Rims (light alloy)
71/2J x 17 H2
71/2J x 17 H2
Wheel offset
1.42 in (36 mm)
1.46 in (37 mm)
Summer tires (radial-ply tires)
225/45 R17 91W
or
225/45 R17 91W MOExtended
1
225/45 R17 91W
or
225/45 R17 91W MOExtended
1
Rear axle:Rims (light alloy)
81/2J x17 H2
81/2J x17 H2
Wheel offset
1.18 in (30 mm)
1.18 in (30 mm)
Summer tires (radial-ply tires)
245/40 R17 91W
2
or
245/40 R17 91W MOExtended
1,2
245/40 R17 91W
2
or
245/40 R17 91W MOExtended
1,2
1Must be used in conjunction with Run Flat Indicator* only.2Must not be used with snow chains.

417 Technical data
Rims and tires
SLK 55 AMG
Front axle:Rims (light alloy)
71/2Jx18 H2
Wheel offset
1.46 in (37 mm)
Summer tires (radial-ply tires)
225/40 ZR18 92Y XL (Extra Load)
Rear axle:Rims (light alloy)
81/2 J x18 H2
Wheel offset
1.18 in (30 mm)
Summer tires (radial-ply tires)
245/35 ZR18 92Y XL (Extra Load)
1
1Must not be used with snow chains.

418 Technical dataRims and tiresSpare 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.iPlease note that the tire inflation
pessure 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).

419 Technical data
Electrical system
Electrical system
Model
SLK 350
SLK 55 AMG
Generator (alternator)
14 V/150 A
14 V/150 A
Starter motor
12 V/1.7 kW
12 V/1.7 kW
Battery
12 V/74 Ah
12 V/74 Ah
Spark plugs
Bosch Platin Y 7 MPP33
NGK PLKR 6A
NGK IFR6D10
Electrode gap
0.031 in (0.8 mm)
0.039 in (1.0 mm)
Tightening torque
15 – 22 lb-ft (20 – 30 Nm)
18 – 22 lb-ft (25 – 30 Nm)

420 Technical dataMain DimensionsModel
SLK 350
SLK 55 AMG
Overall vehicle length
160.7 in (4 082 mm)
160.9in (4087mm)
Overall vehicle width
70.4 in (1 788 mm)
70.6 in (1 794 mm)
Overall vehicle height
51.1 in (1 298 mm)
50.0 in (1 271 mm)
Wheelbase
95.7 in (2 430 mm)
95.7 in (2 430 mm)
Track, front
60.0 in (1526 mm)
60.0 in (1 524 mm)
Track, rear
61.0 in (1549 mm)
61.0 in (1 549 mm)