Mercedes-Benz CLS-Class 2006 Owners Manual - Manual (Page 459)

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Technical data
Electrical system
Model CLS 500 CLS 55 AMG
Generator (alternator) 14 V/150 A 14 V/180 A
Starter motor 14 V/1.7 kW 14 V/1.4 kW
Battery (auxiliary) 12 V /12 Ah 12 V/12 Ah
Battery (main) 12 V/95 Ah 12 V/95 Ah
Spark plugs Bosch F8 DPP 332U
NGK PFR 5R-11 NGK IL FR6 A
Electrode gap 0.039 in (1.00 mm) 0.031 in (0.8 mm)
Tightening torque 18.5 - 22 lb-ft (25 - 30 Nm) 18.5 - 22 lb-ft (25 - 30 Nm)