446 Technical data
Electrical system
ModelCLS 550CLS 63 AMG
Generator (alternator)14 V/180 A14 V/180 A
Starter motor12 V/1.7 kW12 V/2.1 kW
Battery12 V/100 Ah12 V/95 Ah
Spark plugsBosch F8 DPP 332U
NGK PFR 5R-11NGK ILZKAR7A10
Electrode gap0.039 in (1.00 mm)0.039 in (1.00 mm)
Tightening torque18.5 - 22 lb-ft (25 - 30 Nm)15 - 18.5 lb-ft (20 -25 Nm)
