Seats, restraints 55Seat beltsThe seat belts are locked duringheavy acceleration or deceleration ofthe vehicle holding the occupants inthe sitting position. Thereby the risk ofinjury is considerably reduced.9 WarningFasten seat belt before each trip.In the event of an accident, peoplenot wearing seat belts endangertheir fellow occupants andthemselves.Seat 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.NoticeMake sure that the belts are notdamaged by shoes or sharp-edgedobjects or are trapped. Prevent dirtfrom getting 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 3 107.Belt force limitersStress on the body is reduced by thegradual release of the belt during acollision.Belt pretensionersIn the event of a head-on, rear-end orside-on collision of a certain severity,the front and rear seat belts aretightened. The front seat belts aretightened by two pretensioners perseat. The outer rear seat belts aretightened by one pretensioner perseat.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 3 108.Triggered belt pretensioners must bereplaced by a workshop. Beltpretensioners can only be triggeredonce.NoticeDo not affix or install accessories orother objects that may interfere withthe operation of the beltpretensioners. Do not make any