Engine Management:
Detailed diagnostics, component testing, and repair procedures for DME (Digital Motor Electronics).
Fuel System:
Fuel pump, injectors, pressure regulation, fuel tank, EVAP system diagnosis and repair.
Cooling System:
Radiator, water pump, thermostat, hoses, fan clutch/electric fan, coolant specifications.
Exhaust System:
Catalytic converters, mufflers, oxygen sensors, exhaust manifold diagnosis and replacement.
Ignition System:
Spark plugs, ignition coils, crank and cam position sensors, troubleshooting.
Transmission Manual:
Clutch assembly, gearbox removal/installation, internal component repair, fluid specifications.
Transmission Automatic:
GM 5L40-E / ZF 5HP19 / ZF 6HP19 (depending on engine variant) - control modules, solenoid testing, fluid specifications, torque converter.
Drivetrain Rear Axle:
Differential, driveshafts, CV joints, limited-slip differential (if equipped), fluid specifications.
Suspension Front:
MacPherson struts, control arms, ball joints, bushings, sway bar, alignment specifications.
Suspension Rear:
Multi-link independent suspension, shock absorbers, control arms, bushings, alignment specifications.
Steering System:
Power steering pump, steering rack, tie rods, steering column, fluid type.
Braking System:
Brake discs, calipers, pads, ABS system, DSC (Dynamic Stability Control), EBD (Electronic Brake-force Distribution), fluid type and bleeding procedures.
Wheel Speed Sensors:
Diagnosis and replacement for ABS/DSC functionality.
Electrical System General:
Battery, alternator, starter motor, wiring diagrams, fuse/relay locations.
Body Electrical:
Lighting systems (headlights, taillights, interior), power windows, locks, mirrors, sunroof, horn.
Climate Control:
HVAC system, A/C compressor, refrigerant, blower motor, climate control modules, cabin filter.
Infotainment Audio:
Radio, CD player, speakers, amplifier (if equipped), antenna system.
Instrument Cluster:
Gauge operation, warning lights, troubleshooting.
Srs Airbag System:
Airbag modules, sensors, control unit, diagnostic procedures.
Security System E46:
Immobilizer system (EWS), remote key functions, alarm system.
Body Panels:
Hood, fenders, doors, trunk lid removal and installation, hinge adjustment.
Glass And Seals:
Windshield, side windows, rear window, seals, weatherstripping.
Interior Trim:
Dashboard, door panels, headliner, seats, carpet removal and installation.
Lighting Exterior:
Headlight aim, bulb replacement, taillight assembly, fog lights.
Lighting Interior:
Dome light, vanity mirrors, footwell lighting, trunk light.
Routine Maintenance:
Oil changes, filter replacements (oil, air, cabin), spark plug replacement, brake fluid flush, coolant flush.
Component Removal Installation:
Step-by-step guides for all major components across all systems.
Disassembly Assembly:
Detailed instructions for internal components of engines, transmissions, and other assemblies.
Troubleshooting Diagnostics:
Symptom-based diagnostics, fault code interpretation (OBD-II), electrical system tracing.
Repair Procedures:
Specific repair instructions for common failures and wear items.
Specifications And Tolerances:
Torque values, clearances, alignment settings, and other critical specifications.
Wiring Diagrams:
Comprehensive electrical schematics for all circuits.
Special Tools And Procedures:
Identification of BMW-specific tools and unique repair methods.
Depth:
Factory-level detail suitable for professional mechanics and advanced DIY enthusiasts.
Oil Change Interval:
Typically 10,000-15,000 miles or 12-24 months, depending on driving conditions and oil used (refer to Condition Based Service).
Spark Plug Interval:
60,000-100,000 miles (depending on plug type - iridium recommended)
Brake Fluid Flush Interval:
Every 2 years, regardless of mileage.
Engine Oil Specification:
BMW Longlife-01 (LL-01) or LL-04 (depending on region/fuel) 0W-30 or 5W-30 synthetic oil.
Coolant Specification:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based)
Power Steering Fluid:
Pentosin CHF 11S or ZF Servolenkungsspezifikation (green)
Cooling System Leaks:
Cracked plastic expansion tank, failing water pump (plastic impeller), thermostat housing leaks.
Vanos System:
Failure of the Variable Valve Timing system (solenoids, seals) leading to rough idle and power loss.
Oil Pan Gasket Leaks:
Common leak point, especially on higher mileage vehicles.
Subframe Mounts:
Cracking and separation of rear subframe mounting points, particularly in coupes and convertibles.
Window Regulator Failure:
Common issue with plastic components breaking.
ABS Wheel Speed Sensors:
Frequent failures leading to ABS/DSC warning lights.