54 Seats, restraintsSeat belts are designed to be used byonly one person at a time. Childrestraint system 3 63.Periodically check all parts of the beltsystem for damage, pollution andproper functionality.Have damaged componentsreplaced. After an accident, have thebelts and triggered belt pretensionersreplaced by a workshop.NoteMake sure that the belts are notdamaged by shoes or sharp-edgedobjects or trapped. Prevent dirt fromgetting into the belt retractors.Seat belt reminderEach seat is equipped with a seat beltreminder, indicated for front seats bycontrol indicators X and k, or for rearseats by the symbol X in the DriverInformation Centre 3 103.Belt force limitersStress on the body is reduced by thegradual release of the belt during acollision.Belt pretensionersIn the event of a head-on or rear-endcollision of a certain severity, the frontseat belts are tightened.9 WarningIncorrect handling (e.g. removal orfitting of belts) can trigger the beltpretensioners.Deployment of the belt pretensionersis indicated by continuous illuminationof control indicator v 3 104.Triggered belt pretensioners must bereplaced by a workshop. Beltpretensioners can only be triggeredonce.NoteDo not affix or install accessories orother objects that may interfere withthe operation of the beltpretensioners. Do not make anymodifications to belt pretensionercomponents as this will invalidatethe vehicle type approval.Three-point seat beltFasteningWithdraw the belt from the retractor,guide it untwisted across the bodyand insert the latch plate into thebuckle. Tighten the lap belt regularlywhilst driving by pulling the shoulderbelt.