Work instructions after disconnecting the battery

Effects of disconnection or total discharge of the battery on electrical systems in the vehicle, subsequent measures:

• Never disconnect battery with engine running.
• Never start engine without securely connected battery.
• Never use a boost charger to start the engine.
• Whenever possible, use jump leads with overvoltage protection.
• Plug connectors of control modules or other electronic components must never be connected or disconnected with the ignition switched on. Exception: vehicles with the additional equipment M 536 (alarm siren with tilt sensor).