Engine:
Detailed diagnostics, repair, overhaul, troubleshooting for M10, M20, S14 engines.
Fuel System:
Bosch L-Jetronic and Motronic fuel injection systems, fuel pumps, injectors, pressure regulators.
Ignition System:
Electronic ignition system, coil, distributor, spark plugs, troubleshooting.
Transmission:
Manual and automatic transmissions, clutch, driveshafts, differential, shift mechanisms.
Suspension:
Front and rear suspension, struts, shocks, control arms, bushings, anti-roll bars, alignment specifications.
Brakes:
Hydraulic brake system, master cylinder, calipers, rotors, pads, ABS (if equipped), bleeding procedures.
Steering:
Power steering system, steering rack, tie rods, steering column, alignment.
Electrical System:
Wiring diagrams, starter, alternator, battery, lighting, fuses, relays, switches, instrument cluster.
Body And Chassis:
Body panels, doors, windows, sunroof, interior trim, chassis components, rust repair.
Heating And Air Conditioning:
HVAC system components, blower motor, evaporator, condenser, refrigerant, troubleshooting.
Emission Control System:
Components and diagnosis for emission control systems of the era.
Maintenance:
Oil changes, filter replacements, spark plug changes, fluid checks and flushes, brake pad replacement.
Troubleshooting:
Diagnostic procedures for engine, electrical, and mechanical issues with symptom-based guides.
Repair:
Detailed step-by-step instructions for component removal, repair, and reinstallation.
Overhaul:
Complete engine and transmission rebuild procedures with specifications.
Calibration And Adjustment:
Valve adjustments, idle speed settings, ignition timing, clutch adjustments.
Drivetrain Repair:
Detailed instructions for clutch replacement, transmission rebuild, driveshaft balancing, and differential service.
Cooling System Repair:
Radiator, water pump, thermostat, hoses, fan clutch replacement and troubleshooting.
Exhaust System Repair:
Catalytic converter, muffler, exhaust manifold replacement and repair.
Engine Timing Adjustment:
Detailed procedures for setting ignition timing and valve timing.
Body Repair Procedures:
Panel replacement, welding, and corrosion treatment guidelines.
Depth:
Comprehensive, dealership-level technical information covering all aspects of repair and maintenance.
Torque Specifications:
Comprehensive torque specifications for all critical fasteners.
Diagnostic Codes:
Diagnostic procedures for fuel injection and ignition systems, including fault identification.
Wiring Diagrams:
Detailed, component-level wiring diagrams for all vehicle systems.
Alignment Specifications:
Front and rear wheel alignment angles, caster, camber, toe.
Specifications And Tolerances:
Precise specifications for engine components, bearing clearances, piston ring gaps, etc.
Special Tools:
Lists and descriptions of BMW-specific tools required for certain procedures.
Engine Variants Covered:
2.3L M10 (4-cylinder), 2.7L M20 (6-cylinder), 2.3L S14 (4-cylinder M3).
Horsepower Range:
Approx. 105 hp (318i) to 195 hp (M3 Evolution).
Torque Range:
Approx. 114 lb-ft (318i) to 170 lb-ft (M3).
Fuel Delivery:
Bosch L-Jetronic or Motronic electronic fuel injection.
Fuel Type:
Unleaded Gasoline
M10 Engine Details:
2.3L (2300cc) inline-4 cylinder, SOHC, typically found in 318i.
M20 Engine Details:
2.7L (2693cc) inline-6 cylinder, SOHC, commonly found in 325e and 325i.
S14 Engine Details:
2.3L (2302cc) inline-4 cylinder, DOHC, 16-valve, high-performance engine for the M3.
Oil Change Interval:
Typically every 7,500-10,000 miles or 12 months, consult specific manual for exact recommendation.
Spark Plug Replacement Interval:
Approx. 30,000 miles, depending on spark plug type.
Timing Belt Replacement:
For M20 engines, typically every 40,000-60,000 miles or 4-5 years. M10 and S14 use chains.
Engine Oil:
API SG or SH, SAE 15W-40 or 20W-50 depending on climate. Consult manual for specific grades.
Coolant:
BMW Blue Antifreeze/Coolant (or equivalent ethylene glycol-based coolant) mixed 50/50 with distilled water.
Brake Fluid:
DOT 3 or DOT 4 brake fluid.
Transmission Fluid Manual:
API GL-4 SAE 75W-90 or 80W-90 gear oil.
Transmission Fluid Automatic:
ATF Dexron II or III.
Power Steering Fluid:
ATF Dexron II or III.
Differential Fluid:
API GL-5 SAE 75W-90 or 80W-90 gear oil. Limited slip additive may be required for LSD units.
Common Issues:
Rust (especially rear wheel arches, rocker panels), fuel distributor leaks (M10), coolant leaks (heater core, hoses), worn suspension bushings, ABS sensor failures (if equipped), cracked dashboards.
