BMW 3 Owners & Service Manuals

BMW 3: High-voltage Battery Unit

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 Overview

With the G20 PHEV the already familiar Generation 4.0 high-voltage battery unit with the designation SP41 is used. The lithium-ion battery has the same basic design as the Generation 3.0 SP06 high-

 Technical data

The high-voltage battery unit of the G20 PHEV is manufactured by BMW itself in Dingolfing /Germany. The cells of the high-voltage battery unit are supplied by the Korean company Samsung SDI. T

 Equipotential bonding

The low-resistance connection between the housing of the high-voltage battery unit and ground is a crucial prerequisite for the fault-free function of the integrated isolation monitoring. This is wh

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 Cooling

The Electrical Machine Electronics and convenience charging electronics (KLE) are cooled by the low- temperature coolant circuit. G20 PHEV, low-temperature coolant circuit (schematic diagram) Radiator (coolant/air heat exchanger) Electric Motor Electronics (EME) Convenience charging electronic

 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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