Engine Mechanical:
Complete engine overhaul, assembly, disassembly, internal components, piston rings, bearings, crankshaft, camshaft, valve train, cooling system, lubrication system.
Engine Management:
Fuel injection systems (Bosch Motronic variations), ignition systems, emissions control, sensors, actuators, diagnostic codes, troubleshooting.
Transmission Manual:
Clutch assembly, gearbox overhaul, gear selection, troubleshooting, fluid specifications.
Transmission Automatic:
Transmission overhaul, hydraulic systems, torque converter, electronic controls, shift solenoids, troubleshooting, fluid specifications.
Drivetrain:
Driveshafts, CV joints, differential (rear axle), wheel bearings, troubleshooting.
Suspension:
Front and rear suspension components, struts, shocks, control arms, bushings, springs, alignment specifications, troubleshooting.
Steering:
Power steering system, steering rack, tie rods, steering column, troubleshooting, fluid specifications.
Brakes:
Hydraulic system, ABS (Anti-lock Braking System), brake calipers, rotors, pads, master cylinder, brake lines, bleeding procedures, troubleshooting.
Electrical System:
Wiring diagrams, battery, alternator, starter, fuses, relays, lighting system, power windows, mirrors, central locking, comfort features, troubleshooting.
HVAC:
Heating, ventilation, and air conditioning (HVAC) system, components, refrigerant, troubleshooting.
Body And Chassis:
Body panels, doors, hood, trunk, bumpers, interior trim, chassis components, corrosion protection, troubleshooting.
Comfort And Accessories:
Power seats, sunroof, audio system, interior lighting, cruise control, etc.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plug replacement, belt tensioning, fluid checks and top-offs.
Repair:
Step-by-step repair instructions for all covered systems, component replacement, adjustments, reassembly.
Troubleshooting:
Diagnostic charts, symptom-based troubleshooting, common fault identification, repair solutions.
Diagnostics:
OBD-I (On-Board Diagnostics) and proprietary BMW diagnostic procedures, interpretation of diagnostic trouble codes (DTCs).
Specifications:
Torque specifications, clearances, timing marks, diagnostic parameters, alignment settings.
Wiring Diagrams:
Detailed electrical circuit diagrams for all vehicle systems.
Depth:
Comprehensive, from routine maintenance to complete engine and transmission overhauls, advanced electrical diagnostics, and bodywork repair.
Available Engines 1995:
M50B25 (2.5L Inline-6), M50TUB25 (2.5L VANOS Inline-6), M60B30 (3.0L V8), M60B40 (4.0L V8).
M50B25 Horsepower:
Approx. 189 hp (141 kW) @ 5900 rpm (non-VANOS)
M50Tub25 Horsepower:
Approx. 189 hp (141 kW) @ 5900 rpm (VANOS)
M60B40 Horsepower:
Approx. 282 hp (210 kW) @ 5800 rpm
M60B40 Torque:
Approx. 295 lb-ft (400 Nm) @ 4500 rpm
Injection Type:
Electronic Fuel Injection (EFI), specifically Bosch Motronic variants (e.g., M3.3, M3.10).
Fuel Type:
Unleaded gasoline (Octane rating recommendations in manual).
Engine Identification:
Engines identified by BMW's M-series designation (e.g., M50, M60).
Oil Change Interval:
Typically every 7,500 to 10,000 miles (12,000 to 15,000 km) or annually, depending on driving conditions and oil quality. The onboard computer (CC-II) would also indicate service needs.
Spark Plug Replacement:
Approximately every 30,000 miles (48,000 km) for standard plugs; extended life plugs (e.g., platinum) could last longer. Consult manual for specific plug types and intervals.
Transmission Fluid Change:
Automatic: Recommended every 30,000-60,000 miles (48,000-96,000 km). Manual: Less frequent, often considered lifetime fluid unless issues arise.
Engine Oil Type:
BMW Longlife-98 or Longlife-01 specifications are often suitable for this era (e.g., 5W-30, 5W-40 synthetic). Consult manual for exact BMW approved oils and viscosity.
Coolant Type:
BMW Blue Coolant (G48) or equivalent ethylene glycol based coolant with corrosion inhibitors. Never use green coolant.
Brake Fluid Type:
DOT 4 high-performance brake fluid.
Engine Cooling System:
Plastic coolant expansion tank can become brittle and crack; water pump impeller can degrade; thermostat housing leaks.
Electrical System:
Corrosion in fuse box, faulty door lock actuators, sunroof drain blockage leading to water ingress, ABS sensor failures.
Suspension:
Worn control arm bushings, front thrust arm bushings, rear trailing arm bushings, leading to vague steering and alignment issues.
Engine M60:
Cracking of the Nikasil cylinder liners on earlier M60 engines (less common on late 1995 models), though BMW eventually addressed this with steel liners in later production.
Fuel System:
Fuel pump failure, clogged fuel injectors, vacuum leaks.