444 Technical dataElectrical systemModel
CLK 320
CLK 500
CLK 55 AMG
Generator (alternator)
14 V/120 A
14 V/150 A
14 V/150 A
Starter motor
14 V/1.4 KW
14 V/1.7 KW
14 V/1.7 KW
Battery
12 V/100 Ah
12 V/100 Ah
12 V/100 Ah
Spark plugs
Bosch F8 DPP 332
NGK PFR 5R-11
Bosch F8 DPP 332
NGK PFR 5R-11
NGK ILFR 6A
Electrode gap
0.039 in (1.00 mm)
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)
18.5 - 22 lb-ft (25 - 30 Nm)
