BMW 3 Owners & Service Manuals

BMW 3: External features

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 Labels

Three signs are attached to the housing of the high-voltage battery unit: 1 type plate and 2 warning stickers. The type plate provides logistical information (e.g. part number) and the key technical

 Electrical connections

The high-voltage battery unit also has a signal connection, as well as the high-voltage connection. The high-voltage battery unit is integrated in the refrigerant circuit in order for it to be cool

 Cooling system

To increase the service life of the high-voltage battery unit and obtain the greatest possible power, it is operated in a defined temperature range. The high-voltage battery unit is essentially oper

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 Coolant pump

The layout and function of the coolant pump have been revised and adapted to match the cooling concept of the B46TU/B48TU engines. Coolant pump Pressure relief valve closed (pressure < 2.2 bar / 32 psi) Pressure relief valve opened (pressure > 2.2 bar /

 Storage compartments

General information The vehicle interior contains multiple storage compartments for stowing objects. Safety information Warning Loose objects or devices with a cable connection to the vehicle, for instance mobile phones, can be thrown into the car's interior while driving, for instance in the event

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