Engine Mechanical:
Complete overhaul, component replacement, timing, valve adjustment, compression testing, torque specifications.
Fuel System:
Fuel injection (Bosch L-Jetronic/Motronic), fuel pump, injectors, pressure regulator, fuel tank, lines, fuel filter replacement.
Ignition System:
Distributor, coil, spark plugs, ignition timing, control unit (Motronic).
Cooling System:
Radiator, water pump, thermostat, hoses, fan, coolant specifications, bleeding procedure.
Exhaust System:
Mufflers, catalytic converter (if applicable), pipes, hangers, emissions control components.
Transmission Manual:
Clutch assembly, gearbox overhaul, fluid specifications, shift linkage, removal and installation.
Transmission Automatic:
Overhaul, fluid and filter change, torque converter, electronic control (if applicable), diagnostic procedures.
Drivetrain Rear Axle:
Differential overhaul, fluid specifications, driveshaft, U-joints, axle shafts.
Suspension Front:
MacPherson struts, control arms, ball joints, bushings, sway bar, alignment specifications.
Suspension Rear:
Semi-trailing arms, shock absorbers, springs, bushings, sway bar, alignment specifications.
Steering System:
Power steering pump, rack and pinion, fluid specifications, tie rods, steering column, linkages.
Brakes Hydraulic:
Master cylinder, brake lines, hoses, caliper/wheel cylinder overhaul, brake fluid specifications, bleeding procedures.
Brakes Parking:
Mechanism, cables, adjustment.
Electrical System Charging:
Alternator, voltage regulator, battery, wiring, testing procedures.
Electrical System Lighting:
Headlights, taillights, interior lights, fuses, relays, switch testing.
Electrical System Instruments:
Dashboard gauges, warning lights, tachometer, speedometer, fuel gauge, testing and calibration.
Electrical System Accessories:
Wipers, horn, power windows, central locking, electric mirrors, climate control blower.
Climate Control:
HVAC system, heater core, evaporator, blower motor, refrigerant, control panels, diagnostics.
Body Interior:
Seat removal/installation, dashboard removal, door panel replacement, trim pieces, carpet.
Body Exterior:
Door hinges, latches, trunk lid, hood, bumpers, trim, glass replacement, seal replacement.
Chassis Body Structure:
Frame, unibody construction, mounting points, rust repair considerations.
Preventive Maintenance:
Oil changes, filter replacements, fluid checks, tune-ups, lubrication.
Troubleshooting Diagnostics:
Systematic diagnostic charts, symptom analysis, electrical testing methods, fault code interpretation (where applicable).
Component Overhaul:
Engine rebuild, transmission repair, differential rebuild, brake caliper rebuilding.
Component Replacement:
Headlight bulb replacement, spark plug change, alternator replacement, water pump installation, etc.
Adjustment Calibration:
Valve lash adjustment, ignition timing, handbrake adjustment, wheel alignment procedures.
Wiring Diagrams:
Detailed electrical schematics for all major systems.
Special Tools:
Identification and use of BMW-specific tools required for certain procedures.
Depth:
Comprehensive: Covers everything from basic maintenance to full engine and transmission rebuilds. Suitable for both DIY enthusiasts and professional mechanics.
Oil Change Interval:
Typically 5,000-7,500 miles (8,000-12,000 km) or annually, depending on driving conditions.
Engine Oil Filter Replacement:
With every oil change.
Air Filter Replacement:
Every 15,000-30,000 miles (24,000-48,000 km) or as needed.
Spark Plug Replacement:
Every 20,000-30,000 miles (32,000-48,000 km), depending on plug type.
Fuel Filter Replacement:
Every 30,000-50,000 miles (48,000-80,000 km).
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles (48,000-80,000 km).
Engine Oil Type:
API SG/SH or ACEA A2/A3 rated, SAE 10W-40 or 15W-50 (check manual for exact recommendations based on climate).
Engine Oil Capacity:
Approx. 5.5 Liters (5.8 US Quarts) with filter change.
Brake Fluid Type:
DOT 3 or DOT 4.
Power Steering Fluid Type:
ATF Dexron II or equivalent.
Cooling System Leaks:
Plastic radiator end tanks and aged hoses can develop leaks.
Fuel Injector Seals:
Can degrade and cause vacuum leaks or fuel smell.
Rear Axle Bushings:
Semi-trailing arm bushings are a common wear item, affecting handling and stability.
Window Regulators:
Can become stiff or fail, especially with age.
Motronic Control Unit:
Can be susceptible to failure over time, though often repairable.
Rust:
Common rust areas include wheel arches, rocker panels, and the underside.
