BMW Convertible Troubleshooting

Written by andrea stein
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BMW Convertible Troubleshooting
BMW convertible troubleshooting can include issues with the retractable hood. (BMW Fronto image by crossgolfing from

BMW convertible hoods operate via swing arms; the arms retract the hood once a latch disengages the hood's U-attachment point. Electrical and mechanical problems might occur during this process. Issues can often be resolved via some basic troubleshooting techniques.

Sensor Problems

The sensors of a BMW convertible lower the top and check for obstructions that might impede hood operation. Window sensors sometimes indicate a window is in the up position, even if its rolled down. This prevents the top from lowering.

Failed Lock

The wiring for the boot lock on the BMW convertible connects to the wiring of the top's system. A faulty boot lock occasionally renders the boot lid inoperable if the top remains open; the top may not lower while the boot is open. Replace the bad boot lock to solve the wiring issue.

Arm Misalignment

The swing arms that rotate the hood must be in alignment when retracting and closing the top. Broken arms cause improper opening and closing of the hood; they create uneven hood gaps between the front body and hood panels. Defective swing arms must be replaced.

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