Developed for electromobility – drive train and technology in the BMW i3.


Developed for electromobility – drive train and technology in the BMW i3.

0 % EMISSIONS, 100 % DRIVING PLEASURE.Developed for electromobility – drive train and technology in the BMW i3.

Few things are as captivating as the aura of a new era. Where not long ago there was engine noise, now the power is put down almost silently. Suddenly, downtown dynamics become far more relaxed. Because BMW i has systematically reshaped electric mobility in a new and sustainable way. The BMW i3, for example, is the first car to be developed entirely for electric driving.


The finest form of pleasure is spontaneous pleasure – as spontaneous as the all-electric BMW eDrive system. As you move off in the BMW i3, just dipping the accelerator is enough to deploy full torque and pull away powerfully in near silence. And by the way: the same pedal also lets you brake, because the moment you lift off the accelerator, you feel the car start to brake. That’s because your BMW i3 is recovering the available kinetic energy and using it to charge the battery. This “one-pedal feeling”, as we call this innovation, not only enables you to experience driving like never before, but also extends your driving range.

A completely new driving experience.

The fully electric drive train of the BMW i3.

  • BMW eDrive: dynamic from a standing start

    Rarely has a new era begun as racily as with the BMW i3. BMW eDrive was developed in-house at BMW. With an output of 125 kW and maximum torque of 250 Nm it is incredibly responsive. But what does that mean in practice? It means that maximum torque is instantly available when moving off. While conventional vehicles change gear when accelerating, the all-electric BMW i3 (94 Ah) completes the sprint from 0 to 100 km/h without any disruption in 7.3 seconds. Over the first few metres in particular, it leaves more powerful vehicles trailing in its wake.

  • Power consumption: electrically efficient

    The BMW i3 is also setting new benchmarks in terms of efficiency: electricity consumption of the BMW i3 (94 Ah) requires only 12.6 kWh. It is almost silent and completely relaxed driving pleasure.



Extends driving pleasure: the optional Range Extender is located next to the electric motor in the rear of the BMW i3 and can increase the range of the BMW i3 (94 Ah) in COMFORT Mode from up to 180 km to a total of 330 km. The small and quiet two-cylinder petrol engine powers a generator that maintains the charge level of the high-voltage battery at a constant level so that the BMW i3 can continue to drive purely electrically. The Range Extender switches on automatically when the battery level is low.


Shaping the new era of electric mobility in the long term meant going back to the drawing board. One of the biggest challenges with this was how to compensate for the weight of the high-voltage battery. So we divided the vehicle architecture into two separate sections. First, there is the lower Drive module, which is made with aluminium and contains all parts related to the gears, the drive system and the battery. Second, above this, is the Life module, providing plenty of space for people in the car. Featuring the first series-production passenger cell made with strong, ultra-light carbon, the BMW i3 has a lower weight and a lower centre of gravity – simultaneously offering enhanced safety and agility.


The production of the BMW i3.

  • Life module

    The interior of the upper Life module is available as a dedicated living space. Made of high-strength carbon, the passenger cell provides a generously proportioned loft-like atmosphere and a high level of safety. At the same time the DIN weight of the BMW i3 (94 Ah) drops to 1,245 kg, lending it a unique degree of agility and positively affecting the range.

  • Drive module

    The Drive module consists of lightweight aluminium and accommodates all the components that facilitate driving. In the rear are the electric motor, the transmission and the optional Range Extender. The high-voltage battery is optimally positioned for protection in the underbody. This ensures maximum safety and gives the vehicle a very low centre of gravity, which perfectly supports the BMW i3 with its rear-wheel drive. Incidentally, we grant an eight-year of 100,000-km warranty on the battery.


The benefits.

CFRP (carbon fibre reinforced plastic) is a highly resilient composite made of carbon fibres and a matrix of plastic. It is approximately 30 per cent lighter than aluminium and 50 per cent lighter than steel.

The production. Step 1.

In collaboration with SGL Automotive Carbon Fibers, the BMW Group produces the carbon fibres itself. After more than ten years of research and development work, it is now possible to deploy the material in large-scale automobile construction for the first time.

The production. Step 2.

The spun fibres are woven into mats and soaked in special resins.

The production. Step 3.

They are then baked to form rigid elements – the body components.

The production. Step 4.

In the next step, a specially developed, fully automated adhesive procedure cements the body components together.

The result.

Using carbon results in higher stability of the body and greater safety for the vehicle occupants. Maximum stiffness permits faster acceleration as well as improved agility and roadholding, the lower weight reduces fuel consumption.



A variety of innovative driver assistance systems in the BMW i3 not only makes driving a pleasure but also ensures worry-free parking. With the Driving Assist Plus package, the BMW i3 will warn you about collisions and is able to automatically maintain speed and distance in city traffic and traffic jams. In motorway tailbacks, the traffic jam assistant even partially takes over steering duties. The Parking assistant makes child's play of parking – fully autonomously, if desired.

  • Driving Assist Plus

    The optional Driving Assist Plus includes a comprehensive package of innovative driving assistant systems that make driving in the BMW i3 especially safe and comfortable. From 0 to 140 km/h, the Active Cruise Control with Stop & Go function maintains a constant distance to the vehicle in front and regulates the speed, even until the BMW i3 has come to a standstill. In highway tailbacks, the traffic jam assistant can control the BMW i3 autonomously up to a speed of 60 km/h. This enables your BMW i3 to keep in lane, provided that you keep one hand on the steering wheel. The approach control warning with light city braking function detects potential risks of collisions with vehicles, while the person warning with light city braking function reacts to the upcoming possibility of collisions with pedestrians, providing that there is sufficient daylight. Speed Limit Info shows the respective permitted maximum speed in the instrument combination.

  • Parking assist package

    The Parking assist package offers all-round assistance for especially easy and worry-free parking: with Park Distance Control, rear-view camera and the Parking assist.