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Electrical system
348
Electrical system
Model SL 550 SL 600 SL 63 AMG SL 65 AMG
Alternator
14 V / 180 A 14 V / 180 A 14 V / 180 A 14 V / 180 A
Starter motor
12 V / 1.7 kW 12 V / 2.0 kW 12 V / 2.1 kW 12 V / 1.7 kW
Starter battery
12 V / 35 Ah 12 V / 35 Ah 12 V / 35 Ah 12 V / 35 Ah
Battery for electri-
cal consumers
12 V / 70 Ah 12 V / 70 Ah 12 V / 70 Ah 12 V / 70 Ah
Spark plugs Type
NGK PLKR 7A NGK IFR 6Q-G NGK ILZKAR 7A10 NGK IFR 6Q-G
Electrode gap
0.031 in (0.8 mm) 0.028 in (0.7 mm) 0.039 in (1.0 mm) 0.028 in (0.7 mm)
Tightening torque
15 lb-ft - 18 lb-ft
(20 Nm - 25 Nm)
18 lb-ft - 22 lb-ft
(25 Nm - 30 Nm)
15 lb-ft - 18 lb-ft
(20 Nm - 25 Nm)
18 lb-ft - 22 lb-ft
(25 Nm - 30 Nm)
Technical data