Work instructions after disconnecting the battery
NOTE:
- In order to avoid triggering the alarm siren (installed on right next to the battery) of vehicles with M 536, the battery must be disconnected with the ignition on!
- All loads must be switched off beforehand!
- Never disconnect battery with engine running!
- Never start engine without securely connected battery! Do not use a boost charger to start the engine!
- Whenever possible, use jump leads with over voltage protection!
- Always disconnect both battery terminals before carrying out welding work on the vehicle!
- Wiring harness plugs of control modules or other electronic components must be connected or disconnected with the ignition off. Exception: vehicles with the additional equipment M 536 (alarm siren with tilt sensor)!