I don't have a buzzer either. My instrument cluster will report that the key is in the ignition while the engine's off and (I think ) the driver door is open; the lights on if the lights are on... but there is no audible warning.My 2007 Sprinter does not have a buzzer that alerts you when you leave the lights on after you take the key out of the ignition. Is that standard, or is the buzzer not functioning?
Geo
Thats cause the NA models didnt do a crash test with the warning chime installedWeird - mine does have a lights left on warning chime, along with dash message "Switch off lights".