October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Engine Electrical System -- Repair M3 (G80) Expand All (for easy ctrl-f) Collapse All 12 00 General Information 12 12 Spark Plugs 12 13 Ignition Coils 12 14 Engine Sensors 12 14 521 Replacing the crankshaft sensor (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) 12 14 523 Replacing the camshaft position sensor of the intake camshaft (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) 12 14 524 Replacing the camshaft position sensor of the exhaust camshaft (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) 12 14 550 Replacing the Digital Motor Electronics control unit (without programming/encoding.) (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) 12 14 602 Replacing knock sensor (cylinders 1-3) (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) 12 14 604 Replacing knock sensor (cylinders 4-6) (M3 base, M3 Competition) Coding the control unit (DME) (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) Programming the control unit (DME) (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) 12 14 604 Replacing knock sensor (cylinders 4-6) (M3 Competition M xDrive, M3 CS) 12 31 Alternator 12 41 Starter Motor 12 42 Starter Motor Positive Battery Cable 12 51 Engine Wiring Harness 12 51 210 Replacing the wiring harness section for injectors and ignition coils (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) 12 51 235 Remove and install/replace Module 1, sensor system engine wiring (M3 base, M3 Competition) 12 51 240 Remove and install/replace Module 2, sensor system engine wiring (M3 base, M3 Competition, M3 Competition M xDrive, M3 CS) 12 51 245 Remove and install/replace transmission module engine wiring (M3 base) 12 51 245 Remove and install/replace transmission module engine wiring (M3 Competition) 12 51 235 Remove and install/replace Module 1, sensor system engine wiring (M3 Competition M xDrive, M3 CS) 12 51 245 Remove and install/replace transmission module engine wiring (M3 Competition M xDrive, M3 CS) 12 61 Oil Pressure Switch, Oil Level Sensor 12 63 Power Distribution Box 12 90 ECM Housing