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