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.
Use of the Combox in L2 vehicles as of 09/2010
The following optional equipment is available in conjunction with the Combox in the L2 vehicles:
- Radio Professional (option 663)
- BMW Assist with Bluetooth (option 639)
- iPod and USB adapter (option 6FL)
- Smartphone Integration (option 6NF)
- Navigation system (option 609)
As of 09/2010, the ULF-SBX High and TCU control units will be replaced by the Combox.
Currently, to get Bluetooth and USB audio interface functions we must order BMW Assist with Bluetooth (option 639), which includes the Combox controller. (See the table below)
The following table provides an overview of which options are combined with the Combox:
| Optional extra | Combox installed |
|---|---|
| Option 663 | No |
| Option 663 + option 639 | Yes |
| Option 663 + option 639 + option 6NF | Yes |
| Option 663 + option 639 + option 6NF + option 6FL | Yes |
NO RELATED
Use the Manual With the Right Hardware
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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.