2002 MERCEDES-BENZ SLK CLASS Owners Manual

262 Technical data
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2 Must not be used with snow chains.
3 Also permissible: 225 / 45 R 17 91 Y
4 Also permissible: 245 / 40 R 17 91 Y
2
5 Also permissible: 225 / 45 ZR 17 91 Y
6 Also permissible: 245 / 40 ZR 17 91 Y
2
Model SLK 230 KOMPRESSOR /
SLK 320
Sport PackageSLK 32 AMG
Rims and summer tires
Rims front axle
light alloy rims
Wheel offset7
1/2 J x 17 H 2
1.46 in (37 mm)7
1/2 J x 17 H 2
1.46 in (37 mm)
Rims rear axle
light alloy rims
Wheel offset8
1/2 J x 17 H 2
1.34 in (34 mm)8
1/2 J x 17 H 2
1.34 in (34 mm)
Radial-ply tires
front axle
rear axle225 / 45 ZR 17
3
245 / 40 ZR 17
2, 4
225 / 45 R 17 91 Y
5
245 / 40 R 17 91 Y
2, 6

263 Technical data
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2 Must not be used with snow chains.Model SLK 230 KOMPRESSOR SLK 320 SLK 32 AMG
Rims and winter tires
Rims (light alloy)
Wheel offset7 J x 16 H 2
1. 4 6 i n ( 3 7 m m )7 J x 16 H 2
1.46 in (37 mm)7 J x 16 H 2
1.46 in (37 mm)
Radial-ply tires 205 / 55 R 16 91 H M+S 205 / 55 R 16 91 H M+S 205 / 55 R 16 91 H M+S
Spare wheel
Rim (light alloy)
Wheel offset4
1/2 B x 15 H 2
0.47 in (12 mm)4
1/2 B x 16 H 2
0.47 in (12 mm)4
1/2 B x 16 H 2
0.47 in (12 mm)
Collapsible tire 165-15 89 P
2
165 / 70-16 92 P
2
165 / 70-16 92 P
2

264 Technical data
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Electrical system
SLK 230 KOMPRESSOR SLK 320 SLK 32 AMG
Generator (alternator) 14 V / 90 A 14 V / 115 A 14 V / 120 A
Starter motor 12V / 1.1 kW 12V / 1.7 kW 12V / 1.7 kW
Battery 12V/74 Ah 12V/74 Ah 12V/74 Ah
Spark plugs
Electrode gap
Tightening torqueBosch F 7 KTCR
0.039 in (1.0 mm)
15 – 22 ft.lb (20 – 30 Nm)Bosch F 8 DPER
Beru 14 FGH 8 DPUR X 2
NGK PFR 5-11
0.039 in (1.0 mm)
15 – 22 ft.lb (20 – 30 Nm)NGK IFR 6D1O
0.039 in (1.0 mm)
15 – 22 ft.lb (20 – 30 Nm)

265 Technical data
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Main Dimensions Trunk load max. 220 lb (100 kg)
Model SLK 230 KOMPRESSOR/
SLK 320SLK 32 AMG
Overall vehicle length 157.9 in (4010 mm) 157.9 in (4010 mm)
O v e r a l l v e h i c l e w i d t h 6 7. 5 i n ( 1715 m m ) 6 7. 5 i n ( 1715 m m )
Overall height 50.4 in (1279 mm) 50.4 in (1279 mm)
Wheel base 94.5 in (2400 mm) 94.5 in (2400 mm)
Track, front 58.6 in (1488 mm) 58.6 in (1488 mm)
Track, rear 58.5 in (1485 mm) 58.5 in (1477 mm)

266 Fuels, coolants, lubricants etc. - capacities
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Fuels, coolants, lubricants etc. – capacities
Vehicle components and their respective lubricants must match. Therefore use only brands tested and recommended
by us. Please refer to the Factory Approved Service Products pamphlet, or inquire at your authorized Mercedes-Benz
Center.
Model Capacity Fuels, coolants, lubricants etc.
Engine with oil filter SLK 230
SLK 320
SLK 32 AMG6.1 US qt (5.5 l)
8.5 US qt (8.0 l)Recommended engine oils
Automatic transmission 8.5 US qt (8.0 l) Automatic transmission fluid
Manual transmission SLK 230
SLK 3201. 6 U S q t ( 1. 5 l )
1. 9 U S q t ( 1. 8 l )Transmission oil
Rear axle 1.4 US qt (1.3 l) Hypoid gear oil SAE 90, 85 W 90
Power steering approx. 1.1 US qt (1.0 l) MB Power steering fluid
Front wheel hubs approx. 1.5 oz (43 g) each High temperature roller bearing grease
Brake system approx. 0.5 US qt (0.5 l) MB Brake fluid (DOT 4)
Cooling system SLK 230
SLK 320
SLK 32 AMGapprox. 9.8 US qt (9.3 l)
approx. 11.8 US qt (11.2 l)
approx. 15.3 US qt (14.5 l)MB Anticorrosion / antifreeze

267 Fuels, coolants, lubricants etc. - capacities
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washer systemapprox. 7.4 US qt (7.0 l) MB Windshield washer
concentrate “S”
1
Fuel tank including
a reserve ofapprox. 15.8 US gal (60.0 l)
approx. 2.1 US gal (8.0 l)Premium unleaded gasoline:
Posted Octane 91 (Avg. of 96 RON / 86
MON)
Air conditioner system R-134a refrigerant and special PAC
lubricant (Never R-12)1 Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and
commercially available premixed windshield washer solvent / antifreeze for temperatures below freezing. Follow suggested mixing ratios, see
page 199.
Model Capacity Fuels, coolants, lubricants etc.

268 Fuels, coolants, lubricants etc. - capacities
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Engine oils
Engine oils are specifically tested for their suitability in
our engines. Therefore, use only engine oils
recommended by Mercedes-Benz. Information on
recommended brands is available in the Factory
Approved Service Products pamphlet, or at your
authorized Mercedes-Benz Center.
Please follow Service Booklet recommendations for
scheduled oil changes. Failure to do so could result in
engine damage not covered by the Mercedes-Benz
Limited Warranty.
Engine oil additives
Do not blend oil additives with engine oil. They may be
harmful to the engine operation.
Damage or malfunctions resulting from blending oil
additives are not covered by the Mercedes-Benz Limited
Warranty.Air conditioner refrigerant
R-134a (HFC) refrigerant and special PAG lubricating oil
is used in the air conditioner system.
Never use R-12 (CFC) or mineral-based lubricating oil,
otherwise damage to the system will occur.
Brake fluid
During vehicle operation, the boiling point of the brake
fluid is continuously reduced through the absorption of
moisture from the atmosphere. Under extremely hard
operating conditions, this moisture content can lead to
the formation of bubbles in the system thus reducing
the system‘s efficiency.
The brake fluid must therefore be replaced every two
years, preferably in the spring.
It is recommended to use only brake fluid approved by
Mercedes-Benz. Your authorized Mercedes-Benz Center
will provide you with additional information.

269 Fuels, coolants, lubricants etc. - capacities
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Caution!
To maintain the engine’s durability and performance,
premium unleaded gasoline must be used. If premium
unleaded is not available and low octane fuel is used,
follow these precautions:
•have the fuel tank filled only partially with unleaded
regular and fill up with premium unleaded as soon
as possible,
•avoid full throttle driving and abrupt acceleration,
•do not exceed
2/3 of maximum accelerator pedal
position, if the vehicle is fully loaded or operating in
mountainous terrain.Fuel requirements
Use only Premium unleaded meeting ASTM
standard D 439:
The octane number (posted at the pump) must be
91 min. It is an average of both the Research (R) octane
number and the Motor (M) octane number: [(R+M) / 2].
This is also known as ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates such as
Ethanol, IPA, IBA and TBA can be used provided the
ratio of any one of these oxygenates to gasoline does not
exceed 10%, MTBE not to exceed 15%.
The ratio of Methanol to gasoline must not exceed 3%
plus additional cosolvents.
Using mixtures of Ethanol and Methanol is not allowed.
Gasohol, which contains 10% Ethanol and 90% unleaded
gasoline, can be used.
These blends must also meet all other fuel requirements
such as resistance to spark knock, boiling range, vapor
pressure etc..