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Vehicle starting and charging system BMW 3 Series E46
Technical data
System type - 12 volts, negative on ground Generator Voltage (at 1500 rpm, all consumers are off) — 13.5-14.2 V Starter Shaft power - 1.4 kW
System type - 12 volts, negative on ground Generator Voltage (at 1500 rpm, all consumers are off) — 13.5-14.2 V Starter Shaft power - 1.4 kW
Tightening torques for connections, N·m
Generator to engine crankcase (n42 engine) — 21 Front strut bolts 1: 1st stage - 59 2nd stage - Turn 90° further Starter bracket to engine mounting bolts - 47...
Generator to engine crankcase (n42 engine) — 21 Front strut bolts 1: 1st stage - 59 2nd stage - Turn 90° further Starter bracket to engine mounting bolts - 47...
General information and precautions
General information The engine electrical system consists primarily of the starting and battery charging systems. Because the functions of these devices are...
General information The engine electrical system consists primarily of the starting and battery charging systems. Because the functions of these devices are...
Battery — Checking and Charging
Note: The following information should be considered as a guide only. When using the battery, follow the manufacturer's instructions. 1. All models are...
Note: The following information should be considered as a guide only. When using the battery, follow the manufacturer's instructions. 1. All models are...
Battery — Removal and Installation
Note 1. If the ECU memory contains fault codes, they will be lost when the battery is disconnected. Therefore, before disconnecting the battery, check for...
Note 1. If the ECU memory contains fault codes, they will be lost when the battery is disconnected. Therefore, before disconnecting the battery, check for...
Battery charging system — check
Note: Before you begin, read the warning in the "Safety First" section at the beginning of this Guide and at the beginning of this chapter. 1. If the battery...
Note: Before you begin, read the warning in the "Safety First" section at the beginning of this Guide and at the beginning of this chapter. 1. If the battery...
Generator — removal and installation
4-cylinder engines Removal - M43TU engine 1. Disconnect the negative cable from the battery ( see paragraph 4 ). 2. Remove the air cleaner and air flow sensor...
4-cylinder engines Removal - M43TU engine 1. Disconnect the negative cable from the battery ( see paragraph 4 ). 2. Remove the air cleaner and air flow sensor...
Generator — Checking and Repairing
If the alternator is not working properly, remove it from the vehicle and take it to an auto electrician for inspection and repair. Most electricians can...
If the alternator is not working properly, remove it from the vehicle and take it to an auto electrician for inspection and repair. Most electricians can...
Engine starting system — check
Note: Before you begin, please read the warnings in the "Safety First!" section and in paragraph 1 of this chapter again. 1. If the starter does not work when...
Note: Before you begin, please read the warnings in the "Safety First!" section and in paragraph 1 of this chapter again. 1. If the starter does not work when...
Starter — removal and installation
Engine M43TU Removal 1. Disconnect the negative cable from the battery ( see paragraph 4 ). 2. Apply the parking brake, lift the front of the vehicle and place...
Engine M43TU Removal 1. Disconnect the negative cable from the battery ( see paragraph 4 ). 2. Apply the parking brake, lift the front of the vehicle and place...
Starter — check and repair
If you suspect a faulty starter, remove it from the car and take it to an auto electrician for inspection and repair. Most electricians can replace the starter...
If you suspect a faulty starter, remove it from the car and take it to an auto electrician for inspection and repair. Most electricians can replace the starter...
Ignition switch — removal and installation
The ignition switch is made as a single unit with the steering column lock. The procedure for removing the lock is described in chapter 10 .
The ignition switch is made as a single unit with the steering column lock. The procedure for removing the lock is described in chapter 10 .
This section is available on russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
Similar sections for other types of BMW cars:
Electrical equipment: Starter and generator BMW 5 Series E28 (1981-1988)
Power unit: Charge and launch systems BMW 7 Series E38 (1994-2001)
Electrical equipment: Starter and generator BMW 5 Series E28 (1981-1988)
Power unit: Charge and launch systems BMW 7 Series E38 (1994-2001)
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