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.
Roof antenna
The roof antenna is in the middle of the roof, toward the trailing edge. Depending on the equipment installed, the car might have two GSM antennas (roof 1 and roof 2). Both are inside the housing of the roof antenna.
Overview of the GSM antennas installed and relationship to optional extras:
| Optional extra | GSM 1 (roof antenna) | GSM 2 (roof antenna) | Emergency-call GSM antenna | Bumper antenna |
|---|---|---|---|---|
| BMW Assist | X | X | X | O |
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.