Vehicles after change point in 1982
INSTRUCTIONS FOR WORKING ON TRANSISTORIZED COIL-TYPE IGNITION (TCI) AND DIGITAL MOTOR ELECTRONICS (DME)
- Always disconnect battery or interrupt power supply to ignition control unit and ignition coil
when working on the electrical system (charging battery or welding, etc.) - dangerous primary
and secundary voltage as well as danger of destroying the ignition system.
- Never start the engine after removal of distributor cop and/or disconnection of wire on ignition
coil term. 4 - pull off plug on ignition control unit.
- Never disconnect the battery or leads onthe alternator and starter while engine is running.
- Only install specified orginal BMW parts.
- Never connect a shielded capacitor or test lamp on term. 1 of the ignition coil.
- Never connect wire of ignition coil term. 1 on ground or B+. Consequently the ignition coil
term. 1 wire must not be used to preventt engine starting when service installing a burglar alarm system.
- When checking the compression, pull of plug on control unit for TCI or master relay for
fuel injection (relay no. 2) for DME.
- The secondary side (high voltage side) of the ignition system must be shielded with at least
4 k-ohms, whereby the orginal distributor rotor with 1 k-ohm shielded resistor must be installed.
Do not use a 5 k-ohm distributor rotor for the shielded resistor and/or communication equipment!