11.5. Central blocking

Opening in emergency
Vacuum hoses
Search of malfunctions in system of the central blocking

The system of infrared management in a combination with security system is serially installed on E-class models. Control of the central blocking with the pneumatic drive is exercised of switches in locks of forward doors and trunk lids. Depending on a signal of an electronic key or the direction of its turn in the lock contacts on "weight" become isolated, and the pump of the drive receives direct or return rotation. Thus it puts system in action, creating pressure or depression. Pneumatics of the central blocking works almost silently — there are neither clicks of magnets, nor hum of the electric motor as it happens on some other cars. The switch on the central console it is possible to block the car from within.