2008 Mercedes SL-Class Owner's Manual - Page 83
2008 Mercedes SL-Class Manual
Page 83 highlights
Safety and Security Occupant safety Enhanced seat belt reminder system When the engine is started, the seat belt telltale < will always illuminate for 6 seconds to remind you and your passenger to fasten your seat belts. If the driver's seat belt is not fastened when the engine is started, an additional warning chime will also sound for a maximum of 6 seconds or until the driver's seat belt is fastened. If after these 6 seconds, the driver's or the passenger's seat belt (with the passenger seat occupied) are not fastened with both doors closed, the seat belt telltale < remains illuminated for as long as either the driver's or passenger's seat belt is not fastened. and if the vehicle speed once exceeds 15 mph (25 km/h), the seat belt telltale < starts flashing and a warning chime sounds with increasing intensity for a maximum of 60 seconds or until the driver's and passenger's seat belts are fastened. If the driver's or the passenger's seat belt remain unfastened after 60 seconds, the warning chime stops sounding. The seat belt telltale < stops flashing but continues to be illuminated. The seat belt telltale < will only go out if both the driver's and the passenger's seat belt (with the passenger seat occupied) are fastened, or the vehicle is standing still and a door is opened. For more information, see the "Practical hints" section ( page 352). Emergency tensioning device (ETD), seat belt force limiter The seat belts are equipped with emergency tensioning devices and belt force limiters. The ETD is designed to activate in the following cases: in frontal or rear-end impacts exceeding the system deployment threshold if the restraint systems are operational and functioning correctly, see 1 indicator lamp ( page 68) in certain vehicle rollovers if the system determines an additional degree of protection i The ETDs will only activate if the seat belts are fastened (latch plate properly inserted into buckle). 82