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Charging and starting systems BMW 3 Series E46
General information about the charging and starting system
All vehicles covered in this guide have a 12-volt electrical system. The ground connection is via the negative terminal of the battery. The battery is located...
All vehicles covered in this guide have a 12-volt electrical system. The ground connection is via the negative terminal of the battery. The battery is located...
Battery — Basic Information and Care
The installed 12V battery consists of six cans containing positive and negative plates that are dipped in a sulfuric acid solution. The battery's job is to...
The installed 12V battery consists of six cans containing positive and negative plates that are dipped in a sulfuric acid solution. The battery's job is to...
Removal and installation the battery
The battery is located in the luggage compartment behind the cover on the right side. In 316i, 318i cars, the battery is located in the engine compartment. -...
The battery is located in the luggage compartment behind the cover on the right side. In 316i, 318i cars, the battery is located in the engine compartment. -...
Checking the battery
Built-in battery charge indicator The indicator is green - the battery has a sufficient level of charge. The indicator is black - The battery needs charging....
Built-in battery charge indicator The indicator is green - the battery has a sufficient level of charge. The indicator is black - The battery needs charging....
Generator. General information and safety precautions
Before performing any work on the charging system, please read the following safety precautions: 1. Never disconnect the battery or voltage regulator while the...
Before performing any work on the charging system, please read the following safety precautions: 1. Never disconnect the battery or voltage regulator while the...
Removal and installation the generator
The car has an alternator. The generator is driven by the crankshaft via a V-belt. Depending on the car model and equipment, generators of different power can...
The car has an alternator. The generator is driven by the crankshaft via a V-belt. Depending on the car model and equipment, generators of different power can...
Checking and replacing generator/voltage regulator brushes
Removal 1. Disconnect the negative (-) battery cable with the ignition off. The battery is located in the luggage compartment behind the cover on the right...
Removal 1. Disconnect the negative (-) battery cable with the ignition off. The battery is located in the luggage compartment behind the cover on the right...
Removal, installation and checking the starter
Starter Elements 1 - starter 2 - electromagnetic starter 3 - gear with overrunning clutch 4 - gear lever 5 — rotor 7 - brush holder 8 — bushings Checking the...
Starter Elements 1 - starter 2 - electromagnetic starter 3 - gear with overrunning clutch 4 - gear lever 5 — rotor 7 - brush holder 8 — bushings Checking the...
Removal, installation and checking the starter traction relay
If the traction relay is damaged, its pinion does not engage with the flywheel ring gear. As a result, the starter cannot turn the engine. This defect occurs...
If the traction relay is damaged, its pinion does not engage with the flywheel ring gear. As a result, the starter cannot turn the engine. This defect occurs...
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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