BMW F10 EV Conversion Project — Vision & Engineering Philosophy

Project Overview

Instead of EV conversions that are often approached as just isolated mechanical swaps, this project aims to convert a 2013 BMW F10 525d into a fully electric vehicle while preserving & enhancing the characteristics of the F10 platform.

The goal is not simply to replace the combustion drivetrain with an electric motor.

The goal is to engineer an OEM+ level EV conversion that feels cohesive, serviceable, refined, and intentionally designed as if BMW itself could have built an electric F10 platform.

The core points of this conversion:

Preserve the highway comfort and stability of the F10
Maintain balanced driving dynamics
Integrate systems in a clean and serviceable manner
Minimize compromise-driven engineering decisions
Retain OEM-level usability wherever possible
Avoid the appearance of a rushed or improvised conversion
Prioritize reliability, documentation, and long-term maintainability
Packaging, thermal management, and serviceability are treated as first-class engineering concerns

I am doing this project as a long-term engineering and learning journey.

Planned Technical Direction

The architecture is still evolving, but the current direction includes:

Drivetrain

Tesla Small Drive Unit (SDU) mounted at the rear
Focus on improving rear-end weight distribution

Battery Packaging

Battery packaging philosophy is focused on distributing weight throughout the chassis rather than concentrating mass in a single location.

Potential battery placement zones include:

Front engine bay
Transmission tunnel area
Rear underbody or trunk area

Electronics & Integration

Areas of interest include:

CAN bus integration
Instrument cluster communication
HVAC integration
Brake system integration
Charging system integration
Safety systems compatibility

The objective is to create a well-integrated electric vehicle platform.

Work Flow

I am aiming for mimimum vehicle downtime during the conversion process so I am creating detailed plan/mockups of everything before starting the physical work.I will have modified subfram with Tesla SDU mounted on it, battery pack craddle/mounting system, full HVAC working on bench before I will start disassembling process the vehicle.

Current work is focused on:

Evaluating SDU motor mounting strategies, Weather if it could be mounted using some kinda of adapter or if I need to modify or fabricate new rear subframe.

collecting videos and images of F10's rear axle carrier in order to make 3D design in fusion

If you have experience, ideas, critiques, or technical insights related to EV systems, fabrication, embedded systems, vehicle integration, or automotive engineering in general, contributions and discussions are always welcome.