Engine Mechanical:
Detailed overhaul procedures for M52B28 engine, including cylinder head, block, pistons, crankshaft, camshafts, valve train, timing chain, oil pump, and cooling system.
Engine Electrical:
Comprehensive diagnostic and repair procedures for DME (Digital Motor Electronics), ignition system, fuel injection system, sensors (crankshaft, camshaft, knock, O2, MAF, MAP), starter, alternator, and battery.
Transmission Manual:
Service and repair of the Getrag 220 5-speed manual transmission, including clutch operation, gearbox disassembly and assembly, and shifter mechanism.
Transmission Automatic:
Service and repair for the ZF 5HP18 5-speed automatic transmission, including valve body, torque converter, electronic control unit (TCU), and shift solenoids.
Drivetrain:
Procedures for driveshaft, universal joints, differential, axle shafts, and wheel bearings.
Suspension:
Front and rear suspension component diagnosis and replacement: struts, shock absorbers, control arms, ball joints, sway bars, bushings, and springs.
Steering:
Power steering system diagnosis and repair, steering rack, steering column, and tie rod ends.
Brakes:
Disc brake system service (pads, rotors, calipers), ABS (Anti-lock Braking System) diagnosis and repair, brake fluid flush, and parking brake.
Electrical System:
Complete wiring diagrams, fuse box layout, lighting system, power windows, mirrors, seats, central locking, instrument cluster, and onboard computer (OBC).
HVAC:
Climate control system diagnosis and repair, blower motor, evaporator, condenser, refrigerant recharge, and cabin air filter replacement.
Body And Trim:
Interior and exterior trim removal and installation, door mechanisms, hood, trunk, bumpers, and glass replacement.
Diagnostics:
OBD-II (On-Board Diagnostics) procedures, fault code interpretation, and troubleshooting guides for common issues.
Preventative Maintenance:
Oil and filter changes, spark plug replacement, air filter replacement, fuel filter replacement, coolant flush, brake fluid flush, transmission fluid change, differential fluid change.
Troubleshooting:
Systematic diagnostic steps for common problems, symptom-based troubleshooting charts.
Repair And Rebuild:
Step-by-step instructions for component removal, disassembly, repair, reassembly, and installation.
Diagnosis And Testing:
Testing procedures for electrical components, sensors, actuators, and mechanical systems using appropriate tools and specifications.
Wheel Alignment:
Specifications and procedures for wheel alignment adjustments.
Safety Systems:
Airbag system diagnosis and handling precautions, seat belt operation.
Depth:
Comprehensive from basic maintenance to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.
Detail Level:
Factory-level detail with torque specifications, clearances, and procedural sequences.
Oil Change Interval:
Every 7,500 - 10,000 miles (12,000 - 16,000 km) or as indicated by the Condition Based Service (CBS) system.
Air Filter Replacement:
Every 30,000 miles (48,000 km) or as needed.
Cabin Filter Replacement:
Every 15,000 miles (24,000 km) or annually.
Spark Plug Replacement:
Every 60,000 miles (96,000 km) for standard plugs, potentially longer for iridium/platinum.
Coolant Flush:
Every 2 years or 30,000 miles (48,000 km).
Engine Oil Type:
SAE 5W-30 or 5W-40 Synthetic Engine Oil (BMW Longlife-98 Approved)
Engine Oil Capacity:
6.5 Liters (6.9 Quarts)
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 Ethylene Glycol Based)
Power Steering Fluid Type:
Pentosin CHF 11S (or equivalent)
Automatic Transmission Fluid:
ZF Lifeguardfluid 5 (or equivalent)
Manual Transmission Fluid:
GL-4 SAE 75W-90 Gear Oil
Common Issues:
Coolant expansion tank cracks, VANOS (Variable Valve Timing) seal leaks, oil separator (PCV) system clogging leading to vacuum leaks, front control arm bushings (thrust arm bushings), headlight condensation, window regulator failures, oil pan gasket leaks, differential seal leaks.
