Mercedes-Benz CLS-Class 2008 Owners Manual - Manual (Page 447)

446
Technical data
Electrical system
Model CLS 550 CLS 63 AMG
Generator (alternator) 14 V/180 A 14 V/180 A
Starter motor 12 V/1.7 kW 12 V/2.1 kW
Battery 12 V/100 Ah 12 V/95 Ah
Spark plugs Bosch F8 DPP 332U
NGK PFR 5R-11 NGK ILZKAR7A10
Electrode gap 0.039 in (1.00 mm) 0.039 in (1.00 mm)
Tightening torque 18.5 - 22 lb-ft (25 - 30 Nm) 15 - 18.5 lb-ft (20 -25 Nm)