Due to recent events, please note the following concerning the above-mentioned vehicles:
After detaching the ground or positive line from the on-board electrical system battery (G1) with the hood closed, it is essential to check whether the 12 V on-board electrical system is de-energized.
After the ground or positive line is detached from the on-board electrical system battery (G1), the DC/DC converter control unit (N83/3) can continue to feed energy into the 12 V on-board electrical system for up to 10 minutes under certain conditions.
The absence of voltage of the 12 V on-board electrical system must be ensured after the ground or positive line has been detached from the on-board electrical system battery (G1) with the hood closed.
Otherwise, there is a risk of a short circuit in the 12 V on-board electrical system.
To detach the ground or positive line from the on-board electrical system battery (G1), the corresponding WIS documents (see table below) must always be taken into account.