Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
System Components: Combox: Versions
Although the Combox is only available in combination with the BMW Assist (option 639), different versions of the control unit are used depending on the vehicle's electrical system and optional equipment.
Therefore, there are currently four versions of the Combox:
Vehicle electrical system BN2000 (L2 [E8x, E9x] and L4 [E7x] as of 09/2010)
- Combox with telematics (With BMW Assist)
- Combox with telematics and GPS receiver (With BMW Assist and Navigation)
Vehicle electrical system BN2020 (L6 [F0x] as of 09/2010)
- Combox with telematics (With BMW Assist)
- Combox with telematics and GPS receiver (With BMW Assist and Navigation)
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.