2008 Mercedes SL-Class Owner's Manual - Page 353

Practical hints What to do if ... Problem Possible cause/consequence The red seat belt telltale comes The seat belt telltale reminds you and your on for a maximum of 6 seconds passenger to fasten your seat belts before after starting the engine. driving off. Suggested solution Fasten your seat belts. Regardless of whether the seat belts are fastened or not, the seat belt telltale always comes on and remains lit for 6 seconds after starting the engine. Fasten your seat belt. The warning chime stops sounding. < < You hear a warning chime for a maximum of 6 seconds after starting the engine. You have forgotten to fasten your seat belt. < The red seat belt telltale comes You and/or your passenger have forgotten to on while the vehicle is standing fasten your seat belts. still and the engine is running or There are items placed on the passenger seat during driving. and therefore the system senses the passenger seat as being occupied. Fasten your seat belts. The seat belt telltale goes out. Remove the items from the passenger seat and put them in a safe place. The seat belt telltale goes out. 352