Engine Electrical System - Repair - E90/E91, Z4
- 00 Troubleshooting
- 12 00 Contents of Engine Electrical System General
- 12 00 ... Instructions for disconnecting and connecting battery
- 12 00 ... Instructions for working on the ignition system
- 12 00 ... Instructions for removing and installing electronic control units
- 12 00 ... Instructions for welding work (overload protection of control units)
- 12 00 ... Instructions for connecting and disconnecting test units
- 12 00 ... Instructions on component testing
- 12 00 ... Instructions on starting aid
- 12 00 ... Instructions on compression testing
- 12 13 Notes on checking ignition system
- 12 Ignition wires, spark
- 13 Ignition coil
- 14 Electronic switching
- 12 14 521 Replacing crankshaft pulse generator (N52, N52K, N51, N53)
- 12 14 523 Replacing inlet camshaft pulse generator (N52, N52K, N51, N53)
- 12 14 524 Replacing exhaust camshaft pulse generator (N52, N52K, N51, N53)
- 12 14 550 Replacing control unit (DME)
- 12 14 600 Removing/replacing knock sensors (N52, N52K, N51)
- 12 14 700 Coding control module (DME / DDE)
- 12 14 705 Programming control unit (DME / DDE)
- 12 90 ... Removing and installing/replacing electronics box
- 12 90 100 Replacing fan for electronics box
- 61 14 ... Removing and installing/replacing engine compartment B+ terminal
- 31 Alternator with drive
- 41 Starter with mounting
- 42 Starter lead
- 51 Engine wiring loom
- 61 Oil pressure-Oil temperature
- 90 Control unit box