Engine Mechanical:
        
        
            Complete engine disassembly, inspection, repair, and reassembly; piston rings, bearings, crankshaft, camshaft, cylinder head, valves, timing systems, seals, gaskets.
        
     
    
        
            Engine Management:
        
        
            Fuel injection systems (Bosch Motronic), ignition systems, sensors (MAF, O2, TPS, etc.), ECU diagnosis and repair, emissions control systems.
        
     
    
        
            Transmission Manual:
        
        
            Clutch system, gearbox disassembly and reassembly, internal components, shift linkage, fluid specifications.
        
     
    
        
            Transmission Automatic:
        
        
            Torque converter, valve body, planetary gear sets, solenoids, transmission control module (TCM), fluid and filter replacement, troubleshooting.
        
     
    
        
            Drivetrain:
        
        
            Driveshafts, CV joints, differential, rear axle, propeller shaft, wheel bearings.
        
     
    
        
            Suspension:
        
        
            Front and rear suspension components, shock absorbers, struts, springs, control arms, ball joints, bushings, wheel alignment procedures.
        
     
    
        
            Brakes:
        
        
            Brake system components (master cylinder, calipers, rotors, pads), ABS system, EBD, parking brake, brake fluid replacement, bleeding procedures.
        
     
    
        
            Steering:
        
        
            Power steering system, steering rack, tie rods, steering column, fluid replacement, troubleshooting.
        
     
    
        
            Cooling System:
        
        
            Radiator, thermostat, water pump, coolant hoses, expansion tank, fan clutch, diagnosis and repair, fluid type and capacity.
        
     
    
        
            Fuel System:
        
        
            Fuel tank, fuel pump, fuel filter, fuel lines, fuel injectors, fuel pressure regulator, EVAP system.
        
     
    
        
            Exhaust System:
        
        
            Exhaust manifolds, catalytic converters, muffler, exhaust pipes, oxygen sensors.
        
     
    
        
            Electrical System:
        
        
            Battery, alternator, starter motor, lighting system, fuses, relays, wiring diagrams, power windows, locks, mirrors.
        
     
    
        
            Body And Interior:
        
        
            Body panel removal and installation, doors, hood, trunk, bumpers, interior trim, seating, dashboard, climate control system.
        
     
    
        
            Diagnostics:
        
        
            On-board diagnostics (OBD-II) system, diagnostic trouble codes (DTCs), troubleshooting charts, common fault diagnosis.
        
     
    
        
            Comfort Systems:
        
        
            Power seats, seat heaters, sunroof operation, central locking, interior lighting.
        
     
    
    
        
            Scheduled Maintenance:
        
        
            Detailed maintenance schedules for oil changes, filter replacements, fluid checks, tune-ups, and inspections.
        
     
    
        
            Component Replacement:
        
        
            Step-by-step instructions for replacing common wear items and major components.
        
     
    
        
            Troubleshooting Guides:
        
        
            Systematic approaches to diagnosing and resolving common problems.
        
     
    
        
            Rebuilding Procedures:
        
        
            Comprehensive guides for rebuilding engines, transmissions, and other major assemblies.
        
     
    
        
            Wiring Diagrams:
        
        
            Detailed electrical wiring diagrams for all major systems.
        
     
    
        
            Technical Specifications:
        
        
            Torque values, clearances, fluid capacities, electrical specifications, and more.
        
     
    
    
        
            Depth Of Coverage:
        
        
            Comprehensive (from basic maintenance to full engine and transmission rebuilds, advanced diagnostics).
        
     
    
        
            Diagnostic Level:
        
        
            Advanced (includes symptom-based diagnosis and component testing).
        
     
    
        
            Repair Level:
        
        
            Expert (covers component-level repair and rebuilding).
        
     
    
        
            Wiring Diagram Detail:
        
        
            High detail, allowing for precise tracing of electrical circuits.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 7,500 to 10,000 miles or annually, or as indicated by the vehicle's Condition Based Service (CBS) system. Refer to manual for specific recommendations.
        
     
    
        
            Air Filter Replacement:
        
        
            Every 30,000 miles or as needed, depending on driving conditions.
        
     
    
        
            Cabin Filter Replacement:
        
        
            Every 15,000 miles or annually.
        
     
    
        
            Spark Plug Replacement:
        
        
            Every 100,000 miles for iridium spark plugs (typically fitted from factory on TU engines). Check specific engine variant.
        
     
    
    
        
            Engine Oil Specification:
        
        
            BMW Longlife-01 (LL-01) or LL-98; SAE 5W-30 or 5W-40 synthetic oil recommended. Consult manual for exact specification and viscosity based on climate and engine.
        
     
    
        
            Coolant Type:
        
        
            BMW Blue Coolant (G48) or equivalent silicate-free, ethylene glycol-based coolant.
        
     
    
        
            Brake Fluid Type:
        
        
            DOT 4 Low Viscosity (LV)
        
     
    
    
        
            Cooling System Leaks:
        
        
            Common issues include cracked plastic coolant expansion tanks, failing water pumps (plastic impeller), and leaking hoses. VANOS seals can also degrade.
        
     
    
        
            Oil Leaks:
        
        
            Valve cover gaskets and oil pan gaskets are prone to leaking over time due to age and material degradation.
        
     
    
        
            Rear Subframe Mounts:
        
        
            Cracking or failure of the rear subframe mounting points can occur, leading to suspension noises and handling issues.
        
     
    
        
            Window Regulators:
        
        
            Plastic components in the window regulator mechanisms can break, causing windows to fall into the door.
        
     
    
        
            Ccv System:
        
        
            The Crankcase Ventilation (CCV) system can clog, leading to increased crankcase pressure, oil leaks, and performance issues.