Engine:
Detailed coverage of M62, M62TU, M73, M73N V8 and V12 engines, including diagnostics, repair, overhaul, timing, cooling, lubrication, fuel, and exhaust systems.
Transmission:
Comprehensive coverage of ZF 5HP30 (5-speed automatic) transmission, including repair, overhaul, fluid specifications, and electronic control.
Drivetrain:
Front axle, rear axle, driveshafts, differentials, and wheel bearings.
Suspension:
Front and rear suspension components, including struts, shocks, control arms, bushings, springs, and anti-roll bars. Coverage of standard and self-leveling suspension systems.
Brakes:
Front and rear brake systems, including discs, pads, calipers, ABS, DSC (Dynamic Stability Control), brake fluid specifications, bleeding procedures, and parking brake.
Steering:
Power steering system, steering rack, tie rods, and steering column.
Electrical:
Extensive coverage of the vehicle's electrical system, including battery, alternator, starter, ignition system, lighting (headlights, taillights, interior), wiring diagrams, fuses, relays, and onboard diagnostics (OBD-II).
Body:
Body panels, doors, hood, trunk, bumpers, glass, locks, hinges, and exterior trim. Repair and adjustment procedures.
Interior:
Seats, dashboard, instrument cluster, climate control system (HVAC), power windows, power locks, sunroof, audio system, and interior trim panels.
Climate Control:
Detailed diagnostics and repair of the automatic climate control system, including refrigerant, compressor, evaporator, condenser, and blower motor.
Safety Systems:
Airbag system (SRS), seatbelt pre-tensioners, and related sensors.
Maintenance:
Scheduled maintenance, oil changes, filter replacements (oil, air, fuel, cabin), spark plug replacement, fluid level checks and top-offs, brake inspections, and tire rotations.
Diagnostics:
Step-by-step diagnostic procedures for identifying and resolving common and complex issues across all vehicle systems, including troubleshooting flowcharts and fault code interpretation.
Engine Repair:
Engine overhaul, piston and ring replacement, valve adjustments, cylinder head repair, gasket replacement, and timing belt/chain procedures (where applicable).
Transmission Repair:
Complete transmission overhaul, valve body repair, torque converter replacement, and electronic transmission control module (TCM) diagnostics.
Brake Repair:
Brake pad and rotor replacement, caliper rebuilding, brake line replacement, ABS/DSC component testing and replacement, and brake bleeding.
Electrical Repair:
Wiring harness repair, component replacement (alternator, starter, sensors, control modules), fuse and relay testing, and troubleshooting of electrical faults.
Body Repair:
Body panel replacement, door and latch repair, glass replacement, bumper repair, and rust prevention.
Suspension Steering Repair:
Replacement of control arms, ball joints, tie rod ends, struts, shocks, and power steering components.
Climate Control Repair:
Refrigerant recharging, compressor replacement, heater core replacement, blower motor replacement, and leak detection.
Troubleshooting:
Extensive troubleshooting guides for common and intermittent issues, including symptom-based diagnostics.
Depth:
Comprehensive, covering everything from basic fluid changes and filter replacements to complete engine and transmission overhauls, complex electrical diagnostics, and bodywork.
Detail Level:
Detailed step-by-step instructions with clear diagrams, illustrations, and torque specifications for virtually every repair procedure.
Target Audience:
Professional technicians and experienced DIY mechanics.
Oil Change Interval:
BMW Condition Based Service (CBS) system, typically every 7,500 - 15,000 miles or as indicated by the vehicle's onboard computer. Refer to manual for specific conditions.
Service Intervals Filters
Air Filter Replacement:
Every 20,000-30,000 miles or as needed.
Cabin Filter Replacement:
Every 15,000-20,000 miles or annually.
Service Intervals Spark Plugs
Spark Plug Replacement V8:
Typically every 60,000 miles (M62TU).
Spark Plug Replacement V12:
Typically every 60,000 miles (M73N).
Engine Oil Type:
BMW Longlife-01 (LL-01) or LL-98 compliant synthetic oil, SAE 0W-30 or 5W-30 recommended.
Engine Oil Capacity V8:
Approx. 6.5 - 7.0 quarts (6.2 - 6.6 liters)
Engine Oil Capacity V12:
Approx. 8.5 - 9.0 quarts (8.0 - 8.5 liters)
Coolant Type:
BMW Blue Antifreeze/Coolant (G48) or equivalent.
Cooling System:
Plastic coolant expansion tanks can become brittle and crack; water pump seals can fail.
Oil Leaks:
Valve cover gaskets and oil pan gaskets are common leak points.
Electrical Gremlins:
Corrosion on wire harnesses, particularly in the engine bay and near the battery, can lead to various electrical issues. Failing control modules (e.g., LCM, ABS module) are also known.
E38 Specific Issues:
ABS/ASC/DSC sensor failures, pixilation on the instrument cluster LCD display, and SRS module issues are common E38 problems.