Battery, Disconnecting And Connecting: Notes
WARNING: This page is about a different variant/trim than selected.
CAUTION:
There is the risk of an accident.
- When working on pyrotechnic components (such as airbags and belt tensioners), the battery must be disconnected when the ignition is switched on, contrary to the following description.
Risk of reducing agent leaking out on vehicles with an SCR system.
- After switching off the ignition, the reducing agent flows back into the reducing agent tank via the metering line to the Reducing Agent Injector -N474-.
- Before working in this area, wait at least 10 minutes after switching off the ignition so that the recirculation process can be completed.
- Only after this is complete can the battery be disconnected. Again, this could take up to 10 minutes after switching off the ignition.
Disconnecting
-- Move the driver seat all the way to the rear.
-- Switch off the ignition.
-- Lift the luggage compartment floor covering by the handle and fold it forward.
-- Open the cover -3- over the battery negative terminal.
-- Loosen the nut -1- several turns and remove the battery ground cable clamp -2- from the battery terminal.