Engine Mechanical:
Complete overhaul, timing, valve adjustment, seals, gaskets, lubrication
Engine Management Electronic:
EFI, DME, sensor diagnostics, wiring diagrams, ECU troubleshooting
Fuel System:
Fuel pump, injectors, pressure regulator, tank servicing
Ignition System:
Coils, spark plugs, ignition timing, DME control
Cooling System:
Radiator, water pump, thermostat, hoses, fan clutch
Exhaust System:
Catalytic converter, mufflers, pipe replacement, O2 sensors
Transmission Manual:
Clutch, gearbox overhaul, gear selection
Transmission Automatic:
Fluid changes, valve body diagnostics, torque converter
Drivetrain:
Driveshafts, CV joints, differential service, limited-slip differentials
Suspension Front:
Struts, control arms, ball joints, bushings, alignment
Suspension Rear:
Shocks, trailing arms, bushings, sway bar
Steering System:
Power steering pump, rack and pinion, tie rods
Brake System:
Discs, pads, calipers, ABS, brake fluid flush
Wheels And Tires:
Bolt patterns, recommended sizes, torque specs
Body Structure:
Frame repair, body panel replacement, rust prevention
Exterior:
Bumpers, fenders, doors, hood, trunk, glass replacement
Interior:
Seats, trim panels, dashboard, headliner
HVAC System:
Blower motor, evaporator, heater core, A/C recharge
Electrical System General:
Battery, alternator, starter, wiring harnesses
Lighting System:
Headlights, taillights, interior lighting, bulb replacement
Instrumentation And Gauges:
Speedometer, tachometer, warning lights, cluster repair
Comfort And Convenience:
Power windows, locks, mirrors, sunroof, cruise control
Safety Systems:
Airbags (if equipped), seatbelt service
Diagnostics:
Troubleshooting charts, error codes, diagnostic procedures
Routine Maintenance:
Oil changes, filter replacements, fluid checks, tire rotation
Component Replacement:
Detailed step-by-step guides for all major components
Troubleshooting:
Systematic approaches to diagnosing common and complex faults
Rebuilding Procedures:
Engine, transmission, and differential rebuilds
Electrical Diagnostics:
Schematics, testing of circuits, component testing
Wiring Diagrams:
Comprehensive electrical schematics for all systems
Specifications:
Torque values, clearances, fluid capacities, electrical specifications
Depth:
Expert level, suitable for professional technicians and advanced DIYers
Detail Level:
Detailed diagrams, exploded views, and step-by-step instructions
Inline 4 Cylinder:
2.0L (M40/M43), 2.5L (M50/M52 - 24v variants) - approximate displacements
Inline 6 Cylinder:
2.5L (M20B25, M50B25), 2.7L (M20B27 '325e/330e'), 3.0L (M30B30, M50B30), 3.4L (M30B34/B34A), 3.5L (M30B35), 3.6L (M50B36 'M5'), 3.8L (S38B38 'M5')
Inline 6 Diesel:
2.4L (M21D24 - Turbo Diesel), 2.5L (M51D25 - Turbo Diesel)
Horsepower Range:
Approx. 120 HP (base diesel) to 315 HP (S38B38 M5)
Torque Range:
Approx. 140 lb-ft to 265 lb-ft
Fuel Delivery:
Electronic Fuel Injection (EFI) - Bosch Motronic variants commonly used
Fuel Type:
Unleaded gasoline (Octane rating varies by engine), Diesel fuel
Oil Change Interval:
Typically every 7,500-10,000 miles or annually, depending on driving conditions and oil type.
Coolant Flush Interval:
Every 2 years or 30,000 miles
Spark Plug Replacement:
Varies by plug type: ~30,000 miles for standard, ~60,000 miles for platinum/iridium
Transmission Fluid Change Auto:
Recommended every 50,000-60,000 miles
Engine Oil Type Gasoline:
API SJ/SL or ACEA A3/B4, SAE 0W-30, 0W-40, 5W-30, 5W-40, 10W-40 depending on climate and engine. Consult manual for specific engine recommendations.
Engine Oil Capacity:
Varies by engine: approx. 5.5 - 7.5 quarts
Cooling System:
Plastic coolant expansion tanks prone to cracking, water pump failures, thermostat housing leaks.
Electrical:
Sensor failures (MAF, O2, coolant temp), blower motor resistor failure, wiring harness degradation, DME capacitor failures.
Suspension:
Wear on control arm bushings, ball joints, and shock mounts leading to vibration and poor handling.
Fuel System:
Fuel pump failures, injector seal leaks, fuel pressure regulator issues.
Engine Oil Leaks:
Valve cover gaskets, oil pan gaskets, rear main seals are common leak points.
