Rollover Protection System
As part of the passive safety system for convertibles, the RPS system is activated automatically in the event of an accident or when the vehicle is in danger of rolling over. The protective bars located behind the rear seat head restraints, (or inside of the headrest in the case of the E46) extend to provide protection to the occupants by working together with the roll bars integrated into the A-pillars.
Deployment of the roll bars with the convertible top raised or the hardtop installed will not damage the rear window.
The RPS system must be inspected and test deployed every Inspection service or at least every two years. After an accident, inadvertent triggering or an inspection the RPS roll bars can be reset.