Page 201 of 273

198 Tires, wheels
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Wheels
Replace rims or tires with the same designation,
manufacturer and type as shown on the original part.
See your authorized Mercedes-Benz Center for further
information.
See your authorized Mercedes-Benz Center for
information on tested and recommended rims and tires
for summer and winter operation. They can also offer
advice concerning tire service and purchase.Tire replacement
Tires should be replaced in sets. Rims and tires must be
of the correct size and type. For dimensions, see
page 249.
We recommend that you break in new tires for
approximately 60 miles (100 km) at moderate speed.
It is imperative that the wheel mounting bolts be
fastened to a tightening torque of 80 ft.lb. (110 Nm)
whenever wheels are mounted.
For rim and tire specifications, see page 249.
Wa r n i n g !
Worn, old tires can cause accidents. If the tire tread
is badly worn, or if the tires have sustained
damage, replace them.When replacing rims, use only genuine
Mercedes-Benz wheel bolts specified for the
particular rim type. Failure to do so can result in
the bolts loosening and possibly an accident.
Page 248 of 273
245 Technical data
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Layout of poly-V-belt drive
SLK 230 Kompressor
routing, belt I
The engine is equipped with two poly-V-belts.
1Crankshaft
2Air conditioner compressor
3Power steering pump
4Coolant pumpSLK 230 Kompressor
routing, belt II
For dimensions of the poly-V-belts, see page 248.
5Idler pulley
6Generator (alternator)
7Idler pulley
8Idler pulley
9Supercharger
P13.20-2007-26
9
6
8
7
4
1
5
32
5
32
9
6
8
4
1
7
P13.20-2008-26
Page 250 of 273
247 Technical data
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index SLK 320
belt routing1Automatic belt tensioner
2Crankshaft
3Air conditioner compressor
4Generator (alternator)
5Idler pulley
6Power steering pump
7Coolant pump
For dimensions of the poly-V-belt, see page 248.
6
5
1
2
3
7
4
Page 254 of 273
251 Technical data
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index Electrical system
We i g h t s (see certification tag)Main Dimensions SLK 230 KOMPRESSOR SLK 320
Generator (alternator) 14 V / 90 A 14 V / 115 A
Starter motor 12V / 1.1 kW 12V / 1.7 kW
Battery 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)
Trunk load max.220 lb (100 kg) Overall vehicle length 157.9 in (4010 mm)
Overall vehicle width 67.5 in (1715 mm)
Overall height 50.4 in (1279 mm)
Wheel base 94.5 in (2400 mm)
Track, front 58.6 in (1488 mm)
Track, rear 58.5 in (1485 mm)
Page 270 of 273

267 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex SRS (Supplemental restraint system) ........................... 51
Indicator lamp ........................................................... 180
SRS malfunction ......................................................... 54
Start lock-out .................................................................... 24
Malfunction lamp ...................................................... 185
Starting and turning off the engine ............................ 142
Steering column, telescopic
Adjusting ...................................................................... 63
Warning lamp ............................................................ 182
Steering lock ................................................................... 140
Storage compartments ...................................................113
Armrest ........................................................................113
Center console ............................................................113
Glove box .....................................................................112
Trunk floor ................................................................. 196
Stowing things in the vehicle ...................................... 188
Sun visors ........................................................................ 111
Supplemental restraint system (SRS) ........................... 51
Indicator lamp ........................................................... 180
SRS malfunction ......................................................... 54
Synchronizing remote control .....................................225
TTachometer ........................................................................ 74
Technical data ................................................................ 248
Electrical system .......................................................251
Main Dimensions ...................................................... 251
Rims – Tires .............................................................. 249
Weights ....................................................................... 251
Tele Aid ............................................................................ 130
Emergency calls ........................................................ 131
Information ................................................................ 134
Initiating an emergency call manually .................. 132
Roadside Assistance ................................................. 133
Telephones and two-way radio .....................................128
Telescoping steering column
Adjusting ......................................................................63
Warning lamp ............................................................ 182
The first 1 000 miles (1 500 km) ................................129
Tires
Consumer information ............................................ 258
Driving instructions ................................................. 157
Rims and tires .......................................................... 249
Rotating wheels ......................................................... 199
Tire inflation pressure ............................................ 209
Tire replacement ....................................................... 198
Tire speed rating ....................................................... 159