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

Technical data

Electrical system

Electrical system
Model

Alternator

Starter motor
Battery

Spark plugs

Type
Electrode gap
Tightening torque
408
ML 320 BlueTEC ML 350
14 V / 220 A 14 V / 180 A
12 V / 2.0 kW 12 V / 1.4 kW
12 V / 95 Ah 12 V / 70 Ah
— Bosch Y 7 MPP33
— 0.031 in (0.8 mm)
— 15 lb-ft - 18 lb-ft
(20 Nm - 25 Nm)
ML 550 ML 63 AMG
14 V / 180 A 14 V / 180 A
12 V / 1.4 kW 12 V / 2.1 kW
12 V / 95 Ah 12 V / 95 Ah
NGK PLKR 7A NGK ILZKAR 7A10
0.031 in (0.8 mm) 0.039 in (1.0 mm)
15 lb-ft - 18 lb-ft 15 lb-ft - 18 lb-ft
(20 Nm - 25 Nm) (20 Nm - 25 Nm)