2008 Mercedes R-Class Owner's Manual - Page 86
2008 Mercedes R-Class Manual
Page 86 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 passengers 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 front passenger's seat belt (with the front passenger seat occupied) are not fastened with all doors closed, the seat belt telltale < remains illuminated for as long as either the driver's or front passenger's seat belt is not fastened and if the vehicle speed 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 the front passenger's seat belt are fastened If the driver's or the front passenger's seat belt remains unfastened after 60 seconds, the warning chime stops sounding and 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 front passenger's seat belt (with the front passenger seat occupied) are fastened, or the vehicle is standing still and a front door is opened. For more information, see "Practical hints" ( page 420). Emergency Tensioning Device (ETD), seat belt force limiter The seat belts for following seats are equipped with emergency tensioning devices and seat belt force limiters: front seats outboard second-row seats third-row seats The ETD is designed to activate in the following cases: in frontal or rear-end impacts exceeding the system deployment threshold in certain vehicle rollovers if the restraint systems are operational and functioning correctly, see 1 indicator lamp ( page 424) i The ETDs for the front seats will only activate if the respective front seat belt is fastened (latch plate properly inserted into buckle). The ETDs for the rear seats will activate with or without the respective seat belt fastened. 85