Mercedes-Benz R-Class 2008 Owners Manual - Manual (Page 534)

533
Technical data
Electrical system
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Electrical system
Model R 350 1
R 350 4MATIC
1 USA only.
R 550 4MATIC 2
2 Canada only.
Generator (alternator) 14 V/150 A 14 V/180 A
Starter motor 12 V/1.4 kW 12 V/1.7 kW
Battery 12 V/70 Ah 12 V/95 Ah
Spark plugs Bosch Y7MPP33 NGK PLKR7A
Electrode gap 0.031 in (0.8 mm) 0.031 in (0.8 mm)
Tightening torque 15 - 19 lb-ft (20 - 25 Nm) 15 - 19 lb-ft (20 - 25 Nm)
Model R 320 CDI 4MATIC
Generator (alternator) 14 V/180 A
Starter motor 12 V/2.0 kW
Battery 12 V/95 Ah