BMW 3: Vehicle battery
General information
The battery is maintenance-free.
More information about the battery can be requested from a dealer's service center or another qualified service center or repair shop.
Safety information
Warning Vehicle batteries that are not compatible can damage vehicle systems and impair vehicle functions. There is a risk of an accident and damage to property. Only vehicle batteries that are compatible with your vehicle type should be installed in your vehicle. Information on compatible vehicle batteries is available at your dealer's service center.
Register the battery to the vehicle
The manufacturer of the vehicle recommends that you have a service center or another qualified service center or repair shop register the vehicle battery to the vehicle after the battery has been replaced. Once the battery has been registered again, all comfort features will be available without restriction and any Check Control messages displayed which relate to comfort features will disappear.
Charging the battery
General information
Make sure that the battery is always sufficiently charged to guarantee that the battery remains usable for its full service life.
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A discharged battery is indicated
by a red
indicator light.
Charge the battery in the following situations:
- When the inspection glass on the top of the battery is black.
- When the take-off performance is insufficient.
The following circumstances can have a negative effect on the performance of the battery:
- Frequent short-distance drives.
- The vehicle is not used for more than a month.
Safety information
NOTICE Battery chargers for the vehicle battery can work with high voltages and currents, which means that the 12 volt on-board network can be overloaded or damaged. There is a risk of damage to property. Only connect battery chargers for the vehicle battery to the starting aid terminals in the engine compartment.
Charging the battery
Charge the battery only when the engine is off and via the starting aid terminals in the engine compartment.
Power failure
After a power loss, some equipment needs to be newly initialized or individual settings updated, for example:
- Memory function: store the positions again.
- Time: update.
- Date: update.
- Glass sunroof: initialize the system.
Disposing of old batteries
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Have old batteries disposed of by
a dealer's
service center or another qualified
service center or repair shop or take
them to a collection point.
Maintain the filled battery in an upright position for transport and storage. Secure the battery so that it does not tip over during transport.
READ NEXT:
Fuses
General information
The fuses are located at different places in the
vehicle.
Safety information
Warning
Incorrect and repaired fuses can overload electrical
lines and components. There is a risk of
Hazard warning flashers
The button is located in the center console.
The red light in the button flashes when the hazard
warning flashers are activated.
Warning triangle
The warning triangle is located on the inside of
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SEE MORE:
New schematic diagram
The representation of the individual bus systems and their designations have
been adapted to the
representation and the designation of the ISTA workshop information system.
The following table provides an overview of the previous and the current
representation and
designation:
Bus overview
G2
Cruise control
Concept
Using this system, a desired speed can be adjusted
using the buttons on the steering wheel.
The system maintains the desired speed. The
system accelerates and brakes automatically as
needed.
General information
Depending on the vehicle setting, the cruise
control settings may change under c
