Powertrain:
Engine mechanical, fuel system, ignition system, cooling system, exhaust system, engine management (DME), transmission (manual & automatic), clutch, driveline, axles.
Chassis:
Suspension (front & rear, including Adaptive Ride Control if applicable), steering (power steering, steering column), brakes (hydraulic, ABS, DSC), wheels, tires.
Electrical:
Battery, charging system, starter, lighting (headlights, taillights, interior), instrument cluster, body control module (BCM), infotainment system, comfort electronics, wiring diagrams, diagnostic connectors (OBD-II).
Body:
Exterior body panels, doors, windows, sunroof, interior trim, seats, HVAC system, climate control, body repair procedures.
Engine Management Systems:
Detailed coverage of DME (Digital Motor Electronics) functions, sensor inputs (crankshaft position, camshaft position, MAF, MAP, O2 sensors, knock sensors), actuator outputs (fuel injectors, ignition coils, VANOS solenoids), idle control, emission control systems (e.g., EVAP).
Maintenance:
Scheduled maintenance (oil changes, filter replacements, fluid checks), tune-ups, component inspections, lubrication.
Repair:
Engine overhaul, transmission rebuild, suspension component replacement, brake caliper service, electrical component diagnosis and replacement, body panel repair.
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs) interpretation, component testing procedures, use of diagnostic tools (e.g., GT1, DIS).
Technical Data:
Torque specifications for all fasteners, electrical system specifications, fluid capacities, diagnostic specifications, component alignment procedures.
Engine Timing:
Procedures for camshaft timing chain and tensioner replacement, VANOS unit overhaul and installation, correct timing marks and procedures for belt-driven camshafts (early models) and chain-driven camshafts (later models).
Fuel System Repair:
Fuel pump testing and replacement, fuel injector cleaning and replacement, fuel pressure regulator diagnosis, fuel tank service.
Ignition System Repair:
Spark plug replacement, ignition coil testing and replacement, crankshaft and camshaft position sensor testing.
Transmission Diagnostics Auto:
Diagnostic flowcharts for automatic transmission fault codes, solenoid testing, valve body troubleshooting, torque converter diagnosis, fluid level and condition checks.
Suspension Geometry:
Alignment specifications, procedure for checking and replacing control arms, ball joints, tie rod ends, shock absorbers, and springs. Coverage of multi-link rear suspension.
Steering System Service:
Power steering pump replacement, steering rack diagnosis and repair, steering column adjustments and repair, steering wheel removal and installation.
Brake System Overhaul:
Brake pad and rotor replacement, caliper service (rebuild or replacement), brake line replacement, bleeding procedures, ABS modulator testing and replacement, DSC system diagnostics.
Electrical Schematics:
Detailed, organized wiring diagrams for all major systems, including power distribution, engine control, lighting, HVAC, windows, locks, and infotainment. Crucial for troubleshooting electrical faults.
HVAC System Repair:
Diagnosis and repair of blower motor, climate control unit, refrigerant system (charging, leak detection), blend door actuators, heater core, and A/C compressor.
Body Panel Replacement:
Procedures for removing and installing fenders, doors, hoods, trunk lids, bumpers, and related trim. Also includes procedures for body repair and corrosion prevention.
Depth:
Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts. Covers everything from routine maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures and electrical schematics.
Torque Specifications:
Extensive torque specifications for engine components, chassis fasteners, wheel lug nuts, and interior trim screws, ensuring proper assembly and preventing damage.
Diagnostic Tools Usage:
Guidance on using factory-level diagnostic tools such as BMW GT1 or DIS (Diagnostic Information System) for advanced system checks, module programming, and adaptive resets.
Oil Change Interval:
Variable Service Interval Indicator (VSI) system, typically recommending oil changes every 7,500-10,000 miles or annually, depending on driving conditions. Manual will provide detailed VSI reset procedures.
Major Service Intervals:
e.g., Spark plug replacement every 60,000-100,000 miles (depending on plug type), coolant flush every 2-3 years, transmission fluid service typically recommended around 60,000-100,000 miles (though often considered 'lifetime' by some, manual provides guidance).
Engine Oil:
BMW Longlife-01 (LL-01) approved synthetic oil, typically 5W-30 or 0W-30. Specific viscosity depends on climate and engine type. Manual will list exact BMW approvals.
Coolant:
BMW Blue Coolant (G48 ethylene glycol based antifreeze) mixed with distilled water (50/50 ratio).
Transmission Fluid Auto:
Pentosin ATF1 or equivalent; specific BMW P/N will be listed. Manual will detail change procedure and fluid level check.
Common E39 Problems:
Cooling system leaks (water pump, radiator, hoses), VANOS (Variable Valve Timing) system issues, oil pan gasket leaks, ABS/DSC sensor failures, headlight leveling issues, power steering leaks, rear subframe bushings, window regulator failures, vapor canister purge valve (EVAP) issues, ignition coil failures.
Manual Utility For Issues:
The manual provides diagnostic steps, part numbers, and repair procedures for all common and uncommon issues encountered on these models.