Engine Systems:
Engine mechanical, cooling, lubrication, fuel injection, ignition, emission control, engine management (DME)
Transmission Systems:
Automatic transmission (e.g., 4HP22, 4HP24), manual transmission (less common), transmission control, hydraulic systems
Drivetrain:
Driveshafts, differential, axles
Suspension And Steering:
Front suspension (MacPherson struts), rear suspension (independent multi-link), power steering system, steering column
Braking System:
Front and rear disc brakes, ABS (Anti-lock Braking System), brake fluid specifications, brake line routing
Electrical System:
Battery, charging system, starter, lighting, wipers, horn, power windows, power locks, mirrors, central locking, alarm system
Climate Control:
Manual and automatic climate control systems, HVAC components, refrigerant, airflow controls
Body Structure:
Body shell, chassis components, corrosion protection
Exterior Trim:
Bumpers, grille, trim pieces, lighting lenses, glass
Doors And Windows:
Door mechanisms, window regulators, seals
Interior Trim And Components:
Seats, dashboard, door panels, headliner, carpet
Routine Maintenance:
Oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection/replacement
Engine Repair:
Head gasket replacement, piston and ring service, valve adjustments, timing chain/belt replacement (if applicable to specific engine), component rebuilds
Transmission Repair:
Transmission fluid and filter service, seal replacement, torque converter replacement, valve body diagnostics, transmission overhaul
Brake System Repair:
Brake pad/shoe replacement, rotor replacement, caliper overhaul, brake line repair/replacement, ABS component testing and replacement
Suspension And Steering Repair:
Shock/strut replacement, control arm bushing replacement, tie rod end replacement, power steering pump/rack service
Electrical Diagnostics And Repair:
Wiring diagrams, component testing, sensor diagnosis, ECU/DME troubleshooting, alternator/starter replacement
HVAC Service:
Component replacement (blower motor, condenser, evaporator), leak detection, refrigerant servicing
Body And Interior Repair:
Panel replacement, door mechanism repair, glass replacement, interior component repair
Troubleshooting:
Diagnostic procedures, symptom-based troubleshooting guides, fault code interpretation
Special Tools:
Identification and usage of BMW-specific tools
Depth Of Information:
Detailed technical specifications, torque values, diagnostic procedures, overhaul instructions, wiring schematics, exploded views
Diagnostic Capabilities:
Advanced diagnostic procedures, component testing, fault code retrieval and interpretation (for systems of that era)
Repair Scope:
From basic adjustments and fluid changes to complete engine and transmission rebuilds
Infotainment Features:
Optional premium sound systems (e.g., Harman Kardon), cassette player, analog radio tuner, climate control display
Driver Assistance Features:
Cruise Control, Park Distance Control (PDC) available on later models.
Connectivity Features:
Limited by era; typically focused on cellular phone integration (optional, rudimentary).
Advanced Electronics For Era:
On-board computer (Check Control system), electronic engine management (DME), ABS, optional self-leveling suspension.
Oil Change Interval:
Refer to vehicle-specific service schedule; typically 7,500-15,000 miles or 12-24 months, depending on driving conditions and oil type.
Major Service Intervals:
Consult manual for specific mileage points (e.g., 30k, 60k, 100k miles) for comprehensive checks and component replacements.
Engine Oil Specification:
API SG or higher, SAE 5W-30 or 5W-40 recommended (check manual for specific OEM approval and viscosity based on climate)
Coolant Specification:
BMW Blue Antifreeze/Coolant or equivalent silicate-free, ethylene glycol-based coolant (typically 50/50 mix with distilled water)
Transmission Fluid Automatic:
Dexron II or equivalent (check manual for exact specification based on transmission type)
Brake Fluid Specification:
DOT 4, low viscosity (LV)
Common E32 Issues:
Head gasket leaks (especially M60 V8), cooling system component failure (hoses, expansion tank, water pump), ABS sensor failures, window regulator failures, door lock actuator issues, potential electronic control unit (ECU) issues, aging wiring harness.
Preventative Maintenance Focus:
Regular cooling system flushes, thorough inspection of all hoses and seals, checking electrical connections, timely replacement of wear items.