Engine Mechanical:
Engine overhaul, cylinder head, crankshaft, pistons, connecting rods, lubrication system, cooling system, intake and exhaust systems.
Engine Electrical:
Ignition system, fuel injection system (DME - Digital Motor Electronics), emission control systems, starter system, charging system.
Transmission:
Manual and automatic transmission (Steptronic) repair, overhaul, clutch, torque converter, gear shifting mechanisms.
Drivetrain:
All-wheel drive (xDrive) system, transfer case, front and rear axles, driveshafts, differential, CV joints.
Suspension:
Front and rear suspension components (struts, shock absorbers, control arms, bushings), wheel bearings, springs, anti-roll bars.
Steering:
Power steering system, steering rack, steering column, tie rod ends.
Brakes:
Brake system components (discs, pads, calipers), hydraulic system, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), parking brake.
Electrical System:
Wiring diagrams, fuses, relays, lighting system (headlights, taillights, interior), battery, alternator, starter, body control module (BCM).
Climate Control:
HVAC system, air conditioning, heater core, blower motor, climate control unit.
Interior Trim:
Dashboard removal, seat removal, door panel access, trim panel specifications.
Exterior Body:
Body panel repair, dent removal, bumper specifications, door mechanisms, hood and trunk operation.
Safety Systems:
Airbag system (SRS - Supplemental Restraint System) diagnostics and replacement, seat belt mechanisms.
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and replacement.
Troubleshooting:
Diagnostic procedures for common faults, symptom-based troubleshooting guides, fault code interpretation (where applicable).
Component Replacement:
Step-by-step instructions for replacing major and minor components (e.g., alternator, starter, water pump, brake calipers, control arms).
Rebuilding Procedures:
Detailed overhaul procedures for engines and transmissions.
Diagnostic Testing:
Procedures for testing electrical components, sensors, actuators, and control modules.
Wheel Alignment:
Specifications for camber, caster, and toe settings.
Brake Bleeding:
Proper procedures for bleeding the brake system, including ABS-equipped vehicles.
Air Conditioning Service:
Refrigerant handling, system evacuation and charging, leak detection.
Depth:
Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds.
Detail Level:
Includes torque specifications, special tool requirements, diagnostic flowcharts, and detailed exploded views.
Oil Change:
Every 10,000-15,000 miles or 12-24 months, depending on driving conditions and oil type used (follow BMW Condition Based Service (CBS) or manual recommendations).
Air Filter Replacement:
Every 30,000-50,000 miles or as needed based on inspection.
Cabin Filter Replacement:
Every 15,000-20,000 miles or annually.
Spark Plug Replacement:
Every 60,000-100,000 miles with iridium-tipped plugs (check specific recommendations).
Coolant Flush:
Every 30,000-50,000 miles or 2-4 years.
Brake Fluid Flush:
Every 2 years, regardless of mileage.
Power Steering Fluid:
Pentosin CHF 11S or equivalent hydraulic fluid
Common Faults:
Cooling system leaks (ốn water pump, expansion tank, hoses), VANOS solenoid failure, oil pan gasket leaks, CCV system issues, ABS/DSC sensor failures, window regulator failures.
