Attention! After working on the airbag system or on the electric seat belt tensioners or seat belts, the following instructions must also be observed. Before connecting the battery, turn on the ignition. When connecting the battery, no one should be in the car. On vehicles with the KESSY system, the ignition must only be switched on after the battery has been connected, for safety reasons using the Tester, outside the cockpit of the vehicle (a valid ignition key must be in the passenger compartment of the vehicle). This process is related to the tests in Guided Fault Finding. Battery terminals must not be lubricated or wet with oil. The pole terminals of the battery can only be put on freely by hand in order to prevent damage to the battery case. Install the battery terminals so that the battery poles are at the same level or protrude relative to the terminals. If both terminals are disconnected, then first connect the pole terminal (+). Tightening torque for all terminal shapes is the same (6 Nm). After connecting the battery and switching on the ignition, the ASR/ESG stabilization program indicator lamp and the power steering indicator lamp are constantly lit. The warning lights go out automatically after a few meters of movement. This activates the steering angle sender -G85- again.
Switch off all electrical consumers and remove the ignition key.
Vehicles with battery monitoring control unit -J367- (with Start-Stop system and autonomous and additional heater)
Before connecting the battery, disconnect the connector -2- from the control unit -3-. Put on the pole clamp (-) with the control unit on the battery pole and tighten the fastening nut -1- (6 Nm). Reconnect connector -3- to control unit.
Vehicles without battery monitoring control unit -J3S7-
Put the pole piece of the ground wire -2- on the negative pole of the battery and tighten the nut -3- (6 Nm).
Further for all vehicles
After connecting the battery, it is necessary to carry out the following work according to the equipment of the vehicle: set the clock, check the power windows. Then interrogate the event recorder and clear the codes in the event recorder.
Battery charging
Open the cover of the heat shield. If available, open cover -2- and connect red charging terminal to positive (-) Battery -1-. Vehicles with battery monitoring control unit -J367- connect the black charging terminal of the battery charger to earth point -3-.