Engine Mechanical:
Complete overhaul, diagnostics, component replacement (e.g., cylinder head, pistons, crankshaft, timing)
Engine Management:
Fuel injection (Bosch Motronic variants), ignition system, sensors, actuators, ECU diagnostics
Cooling System:
Radiator, thermostat, water pump, hoses, fan clutch, coolant specifications
Lubrication System:
Oil pump, oil filter, oil pan, oil pressure, oil specifications
Exhaust System:
Exhaust manifolds, catalytic converters, mufflers, O2 sensors
Fuel System:
Fuel pump, fuel filter, fuel injectors, fuel lines, fuel pressure regulation, tank service
Transmission Manual:
Gearbox overhaul, clutch service, shift mechanism, fluid specifications
Transmission Automatic:
ZF automatic transmission service, torque converter, valve body, fluid specifications
Drivetrain:
Driveshafts, universal joints, differential service, axle shafts
Suspension:
Front and rear suspension components, control arms, ball joints, bushings, shock absorbers, struts
Steering:
Power steering system, steering rack, tie rods, steering column, alignment specifications
Brakes Hydraulic:
Brake calipers, master cylinder, brake lines, brake fluid specifications, bleeding procedures
Brakes Parking:
Parking brake system, cables, adjustment
Wheels And Tires:
Tire sizes, wheel specifications, bolt patterns, pressure recommendations
Electrical System Overview:
Wiring diagrams, component locations, fuses, relays
Battery And Charging:
Battery specifications, alternator, starter motor service
Lighting System:
Headlights, taillights, interior lighting, bulb specifications
Instrument Panel:
Gauges, warning lights, dashboard components
Comfort Controls:
HVAC system, climate control, heater core, A/C system service
Body And Frame:
Body panel repair, structural integrity, rust prevention, door mechanisms
Glass And Mirrors:
Windshield, side glass, rear glass, mirror replacement
Interior Trim:
Seat removal and repair, headliner, door panels, dashboard trim
Safety Restraints:
Seat belts, airbag system (diagnostics, replacement)
Preventive Maintenance:
Oil changes, filter replacements, fluid checks, tune-ups
Troubleshooting:
Diagnostic procedures, fault codes, common problems and solutions
Repair Procedures:
Step-by-step instructions for component removal, installation, and repair
Overhaul Procedures:
Complete engine, transmission, and differential rebuilds
Adjustment Procedures:
Valve adjustment, brake adjustments, parking brake adjustments
Electrical Diagnostics:
Wiring diagram interpretation, voltage testing, continuity testing
Special Tools:
Identification of required BMW special tools and their usage
Depth:
Comprehensive, covering from basic maintenance to full engine rebuilds and advanced diagnostics
Accuracy Level:
Factory-level detail, designed for professional technicians and advanced DIY enthusiasts
Engine Families Featured:
M20 (2.0L, 2.5L, 2.7L), M30 (3.0L, 3.5L), M50 (2.0L, 2.5L, 2.5L VANOS), M52 (2.0L, 2.5L, 2.8L), M60 (3.0L, 4.0L V8), M62 (3.5L, 4.4L V8), S38 (3.6L, 3.8L - M5/M5-Touring)
Typical Horsepower Range:
129 hp to 340 hp depending on engine variant
Typical Torque Range:
174 Nm to 480 Nm depending on engine variant
Injection Type:
Bosch Motronic (various iterations: M1.3, M1.7, M2.1, M2.5, M2.7, M2.8, M2.9)
Oil Change Interval:
Typically 10,000-15,000 miles or 12-24 months, depending on model year and oil type (check manual for specifics).
Spark Plug Replacement:
Varies by engine, e.g., 30,000-60,000 miles for standard plugs, up to 100,000 miles for long-life plugs.
Coolant Flush Interval:
Every 2-4 years or 30,000-50,000 miles.
Engine Oil Type:
SAE 5W-30, 5W-40, 10W-40, or 10W-30 synthetic or synthetic blend, depending on climate and specific engine (e.g., BMW Longlife-98 or Longlife-01 specifications recommended where applicable).
Transmission Fluid Manual:
BMW MTF LT-2 or equivalent GL-4 gear oil (e.g., 75W-90).
Transmission Fluid Automatic:
ZF TE-ML 04D, TE-ML 14A (for ZF 4HP22) or Shell M-1375.4 / ZF Lifeguardfluid 5 (for ZF 5HP series), consult manual for exact specs.
Coolant Type:
BMW Blue Coolant (G48 ethylene glycol based) or compatible equivalent, mixed 50/50 with distilled water.
Common Problems:
Head gasket leaks (especially M60/M62 V8s), VANOS issues (M50/M52 engines), cooling system component failures (plastic expansion tanks, water pumps), ABS sensor failures, fuel pump issues, worn suspension bushings, window regulator failures, door handle microswitches, mass air flow sensor issues.