Engine Mechanical:
Engine assembly, disassembly, cylinder head, valve train, pistons, connecting rods, crankshaft, lubrication system, cooling system, fuel injection, ignition timing, emissions control.
Engine Management:
ECU functions, sensor diagnostics (MAF, O2, crankshaft position, camshaft position, knock sensor), actuator control (idle control valve, VANOS), troubleshooting fault codes (DTCs).
Transmission Manual:
Clutch system, gearbox disassembly and assembly, gearshift mechanism.
Transmission Automatic:
Torque converter, valve body operation, planetary gear sets, transmission control unit (TCU), hydraulic systems, fluid servicing.
Suspension:
Front suspension (struts, control arms, ball joints), rear suspension (multi-link, trailing arms, shock absorbers), wheel bearings, alignment procedures.
Steering:
Power steering system (pump, rack, hoses), steering column, wheel alignment adjustments.
Brakes:
Brake system components (discs, pads, calipers, master cylinder, ABS/DSC module, EBD), bleeding procedures, parking brake system.
Electrical System Power:
Battery, alternator, starter motor, charging system, fuses, relays.
Lighting:
Headlights (halogen, xenon), taillights, interior lighting, fog lights, auxiliary lighting systems.
Comfort Systems:
Climate control (HVAC), power windows, power seats, sunroof, central locking, alarm system, keyless entry.
Infotainment Navigation:
Radio/CD systems, navigation unit (MK-II, MK-III), speaker systems, antenna modules.
Bodywork Exterior:
Body panel removal and installation, doors, hood, trunk, bumpers, glass replacement, trim pieces.
Bodywork Interior:
Dashboard removal, interior trim, seating systems, airbags.
Maintenance Tasks:
Oil changes, filter replacements, spark plug changes, coolant flushes, brake fluid changes, air filter replacement, cabin air filter replacement.
Diagnostic Procedures:
Step-by-step troubleshooting guides for common and uncommon faults, symptom-based diagnosis, using diagnostic tools (e.g., BMW DIS, ISTA).
Repair Procedures:
Detailed instructions for component replacement and repair, torque specifications for all fasteners, specialized tool requirements.
Component Rebuilds:
Complete engine rebuild procedures, transmission overhaul, differential rebuild.
Electrical Diagnostics:
Troubleshooting wiring harnesses, testing sensors and actuators, diagnosing ECU faults, repairing lighting circuits.
Suspension And Steering Repair:
Replacement of ball joints, control arms, tie rods, wheel bearings, steering rack repairs, shock/strut replacement.
Brake System Repair:
Brake pad and rotor replacement, caliper servicing, brake line replacement, ABS/DSC bleeding procedures.
Body Panel Replacement:
Removal and installation of doors, fenders, hood, trunk lid, bumpers, and associated trim.
Climate Control Service:
HVAC system diagnosis, refrigerant servicing, blower motor replacement, evaporator core replacement.
Interior Component Service:
Dashboard removal, seat replacement, airbag system service (with safety precautions).
Depth:
Comprehensive, covering everything from routine maintenance to major overhauls and diagnostics.
Diagnostic Tools:
Details on the use of BMW-specific diagnostic software and hardware (e.g., BMW System Tester, DIS, ISTA) for advanced fault finding.
Wiring Diagrams:
Extensive and detailed wiring diagrams for all electrical systems, enabling precise troubleshooting of electrical faults.
Torque Specifications:
Explicit torque values for all critical fasteners, crucial for correct reassembly and component longevity.
Special Tools:
Identification of necessary specialized tools and equipment required for specific repair procedures (e.g., VANOS tools, bearing pullers).
Troubleshooting Charts:
Detailed troubleshooting flowcharts and tables based on symptoms, guiding technicians through a logical diagnostic process.
Oil Change Interval:
Typically every 7,500-15,000 miles (12,000-24,000 km) or annually, depending on oil type and driving conditions, as indicated by the vehicle's Condition Based Service (CBS) system.
Spark Plug Replacement:
Approximately 60,000 miles (100,000 km) for platinum/iridium plugs, or 30,000 miles (50,000 km) for older copper plugs (engine dependent).
Brake Fluid Change:
Every 2 years, regardless of mileage.
Engine Oil Specification:
BMW Longlife-01 (LL-01) or BMW Longlife-98 (LL-98) compliant synthetic oil, typically SAE 0W-30, 5W-30, or 5W-40 depending on ambient temperature and engine. Refer to manual for specific viscosity and approval.
Coolant Specification:
BMW Blue Antifreeze/Coolant (G48) or equivalent, mixed 50/50 with distilled water.
Transmission Fluid Manual:
API GL-4 or GL-5 gear oil, SAE 75W-90 or 75W-85 (check manual for specific type).
Transmission Fluid Automatic:
BMW LT-2, LT-3, or LT-4 approved ATF (e.g., Esso ATF LT 71141 for ZF 5HP transmissions). Consult manual for exact fluid type and change interval.
Brake Fluid Specification:
DOT 4 or DOT 4 Plus Low Viscosity (LV) brake fluid.
Common Wear Items:
Vibrations from driveshaft flex disc, coolant expansion tank leaks, VANOS solenoid issues (for M52TU/M54 engines), power steering hose leaks, window regulator failures, ignition coil failures, differential seal leaks.
Common Engine Issues:
CCV (Crankcase Ventilation) system clogging leading to oil leaks and rough idle, oil pan gasket leaks, thermostat housing leaks.
Common Electrical Issues:
ABS/DSC sensor failures, EWS (immobilizer) system issues, pixelated instrument cluster displays.