Extending the roll bar

WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.

Precondition

Both rear seats folded down.

Convertible top is fully open.

WARNING: Pyrotechnic components.
Danger! Immobilization period-threatening injuries!

All work on pyrotechnic parts may be carried out by technically experienced and appropriately trained personnel only.
Replace any damaged part or ones that have been dropped.
For additional information see: 72 00 SAFETY REGULATIONS ON HANDLING COMPONENTS WITH GAS GENERATORS .

NOTE: Perform the steps on the left and right side.

Preliminary work

Refer to DISCONNECTING ALL BATTERY GROUND LEADS .

NOTE: Description is for left component only. Procedure on the right side is identical.

Unclip the cover (1).

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Detach the retaining clip (1) from the roll bar (2).

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Check

Pull out the roll bar (1) manually in the arrow direction all the way to the stop.
Check whether the driving roll bar (1) can be easily pulled out.
Check if the roll bar (1) engages in the end position.

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Result

» The roll bar (1) cannot be easily pulled out.

The roll bar (1) does not engage in the end position.

Measure

Replace the rollover protection.