12 00 ... Breakerless ignition distribution

WARNING: This page is about a different car, the 2002 BMW Z3 and 2001 BMW Z3. However, it is still accessible from the selected car via links, so may be relevant.

Engine must never be started after disconnection of the secondary circuit, i.e. disconnection of connectors on spark plugs and earth connection (terminal 4a).
There is dangerous high tension in or on:
1.1. Ignition leads.

1.2. Spark-Plug connectors.

1.3. Spark plugs.

1.4. Ignition coil terminal 4.

CAUTION: Approx. 40 kV high tension.
Terminal 1 wire from ignition coil to DME control unit.
CAUTION: Approx. 350 V high tension at terminal 1.
Battery as well as wires on alternator and starter may not be disconnected on a running engine.