Engine Electrical System - Technical Data

Engine Electrical System - Technical Data BMW M3 E46

12 12 Ignition Harness, Spark Plugs M54

Bosch FGR 7DQP	X
NGK BKR 6E QUP (High Power)	X

SPECIFICATION IGNITION HARNESS & PARK PLUGS M54

All models with four-mass electrode cannot be adjusted
Firing sequence
4 cylinders		1,3,4,2
6 cylinders		1,5,3,6,2,4
8 cylinders		1,5,4,8,6,3,7,2
12 cylinders		1,7,5,11,3,9,6,12,2,8,4,10

SPECIFICATION IGNITION HARNESS, & SPARK PLUGS E46

Ignition coil for non-operating ignition distribution (Engines: M43TU, M52TU)
Primary winding resistance	Approx.ohm	0.8
Secondary winding resistance		Not measurable
Resistance of Bosch spark plug connector	Approx. k ohm	1 +/- 20%
Resistance of Bremi spark plug connector	Approx. kohm	1.8 +/- 20%

SPECIFICATION IGNITION COIL E46 M43TU M52TU

Ignition coil for non-operating ignition distribution (Engines: M43TU, M52TU)
Primary winding resistance	Approx.ohm	0.53
Secondary winding resistance
Resistance of Bosch spark plug connector	Approx. kohm	1.9 +/- 20%
Resistance of Bremi spark plug connector	Approx. kohm	1.9 +/- 20%

SPECIFICATION IGNITION COIL E46 N42

Rated voltage	V	14
Rated voltage	A/W	65/910 70/980 80/1120 90/1260 105/1470 115/1610 140/1960
Shielded capacitor	"MU" F	2.2 +/- 20%

SPECIFICATION ALTERNATOR WITH DRIVE AND MOUNTING PARTS E46

Constant voltage regulation	V	14.3
Battery-temperature-dependent charging voltage	V

SPECIFICATION CONSTANT VOLTAGE REGULATION E46

Current consumption at term. 50 (with rated voltage)
At 1.4 KW rated power
Pull-in winding	A	54.5
Hold-in winding	A	10.5
At 1.8 KW rated power
Pull-in winding	A	50
Hold-in winding	A	12

SPECIFICATION STARTER MOTOR WITH BRACKET SOLENOID SWITCH E46