Electrical System; Alternator; Technical Data; Spark Plugs - Mercedes-Benz 2009 SL-Class Operator's Manual

Technical data

Electrical system

Electrical system
Model

Alternator

Starter motor
Starter battery
Battery for electri-
cal consumers

Spark plugs

Type
Electrode gap
Tightening torque
348
SL 550 SL 600
14 V / 180 A 14 V / 180 A
12 V / 1.7 kW 12 V / 2.0 kW
12 V / 35 Ah 12 V / 35 Ah
12 V / 70 Ah 12 V / 70 Ah
NGK PLKR 7A NGK IFR 6Q-G
0.031 in (0.8 mm) 0.028 in (0.7 mm)
15 lb-ft - 18 lb-ft 18 lb-ft - 22 lb-ft
(20 Nm - 25 Nm) (25 Nm - 30 Nm)
SL 63 AMG SL 65 AMG
14 V / 180 A 14 V / 180 A
12 V / 2.1 kW 12 V / 1.7 kW
12 V / 35 Ah 12 V / 35 Ah
12 V / 70 Ah 12 V / 70 Ah
NGK ILZKAR 7A10 NGK IFR 6Q-G
0.039 in (1.0 mm) 0.028 in (0.7 mm)
15 lb-ft - 18 lb-ft 18 lb-ft - 22 lb-ft
(20 Nm - 25 Nm) (25 Nm - 30 Nm)