Engine:
Detailed overhaul, tuning, troubleshooting, lubrication, cooling system
Fuel System:
Fuel injection system (Bosch Motronic), fuel pump, injectors, fuel pressure regulation
Transmission Drive:
Gearbox, clutch operation, drive shaft, final drive, sprockets
Electrical System:
Ignition system, lighting, battery, charging system, starter, wiring diagrams, sensors, ECU
Suspension:
Front forks (telescopic, potentially with electronic suspension on later models or certain trims), rear monoshock, adjustment procedures
Brakes:
Brake system overhaul, ABS (if equipped), hydraulic lines, calipers, master cylinders, rotor specifications
Steering:
Steering head bearings, linkage, adjustments
Bodywork:
Fairing removal/installation, body panel repair, seat, luggage systems (LT models)
Exhaust System:
Exhaust manifold, muffler removal and installation, gasket replacement
Intake Exhaust:
Airbox, intake runners, exhaust headers, muffler, catalytic converter (if applicable).
Routine Maintenance:
Oil changes, filter replacement, spark plug checks, chain adjustment, brake fluid checks
Engine Overhaul:
Engine removal and installation, piston and ring replacement, valve adjustment, crankshaft and connecting rod service
Transmission Service:
Gearbox disassembly and assembly, clutch plate replacement, final drive service
Electrical Diagnostics:
Troubleshooting electrical faults, circuit testing, component testing, wiring harness repair
Troubleshooting:
Advanced troubleshooting guides for common and uncommon issues
Suspension Adjustment:
Fork preload, damping, and rear shock adjustments
Brake System Repair:
Brake bleeding, caliper rebuild, master cylinder service, ABS system diagnostics
Engine Rebuild:
Detailed steps for dismantling, inspecting, and reassembling the engine, including crankshaft, connecting rods, pistons, cylinders, and valve train.
Electrical Diagrams:
Comprehensive wiring diagrams for all electrical circuits, aiding in fault diagnosis and repair.
Troubleshooting Guides:
Systematic troubleshooting flowcharts for common engine performance, electrical, and starting issues.
Depth:
Comprehensive, covering routine maintenance to full engine and transmission rebuilds
Diagnostics:
Detailed diagnostic procedures for fuel injection, ignition, and electrical systems
Specifications:
Torque specifications, clearances, fluid types and capacities, electrical resistance values
Measurement Units:
Includes both metric and imperial units where applicable, typical for manuals of this era originating from European manufacturers but used globally.
Diagnostic Tools:
References to specific tools and equipment required for diagnosis and repair, including torque wrenches, multimeter, feeler gauges, and specialized BMW tools.
Engine Type:
Liquid-cooled, four-stroke, inline-four cylinder boxer
Bore X Stroke:
72.0 mm x 63.8 mm
Compression Ratio:
10.2:1
Horsepower:
Approx. 100 hp (75 kW) @ 7,500 rpm (rated)
Torque:
Approx. 102 Nm (75 lb-ft) @ 5,500 rpm (rated)
Fuel System:
Bosch Motronic Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/2
Oil Type:
SAE 20W-50 or 10W-40 (refer to manual for specific BMW recommendations and ambient temperature suitability)
Oil Capacity:
Approx. 4.0 liters (4.2 US qt) with filter change
Cooling Medium:
Ethylene glycol-based coolant mixture
Coolant Capacity:
Approx. 2.5 liters (2.6 US qt)
Oil Change Interval:
Typically every 5,000-10,000 km (3,000-6,000 miles) or annually, whichever comes first (refer to manual for exact mileage/time)
Valve Adjustment Interval:
Typically every 20,000 km (12,000 miles)
Spark Plug Replacement:
Typically every 10,000-20,000 km (6,000-12,000 miles)
Common Issues:
Fuel pump reliability, occasional clutch slave cylinder leaks, ABS sensor issues (if equipped), general wear and tear on aging components (e.g., fuel lines, O-rings).