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.