Engine Mechanical:
Complete overhaul, assembly, disassembly, timing, lubrication, cooling system, fuel system mechanical components.
Engine Electrical:
Ignition system, fuel injection (DME), starter, alternator, sensors, wiring diagrams, troubleshooting.
Transmission Manual:
Repair, overhaul, clutch, gear selection, lubrication.
Transmission Automatic:
Repair, overhaul, shift control, hydraulic systems, torque converter, lubrication.
Suspension:
Front and rear suspension systems, struts, shock absorbers, bushings, control arms, springs, alignment specifications.
Brakes:
Hydraulic system, ABS, brake calipers, rotors, pads, lines, bleeding procedures, parking brake.
Steering:
Power steering system, steering rack, pump, linkages, column, troubleshooting.
Electrical System:
Battery, charging system, lighting, instrumentation, wipers, horn, power windows, central locking, EWS (if applicable).
Climate Control:
HVAC system, blower motor, A/C compressor, refrigerant, heater core, climate control module diagnostics.
Body And Chassis:
Body panels, doors, hood, trunk, interior trim, underbody protection, structural components.
Fuel System:
Fuel pump, fuel filter, fuel injectors, fuel pressure regulator, fuel tank, lines.
Exhaust System:
Exhaust manifolds, catalytic converter, mufflers, pipes, hangers.
Cooling System:
Radiator, water pump, thermostat, hoses, coolant specifications, fan.
Routine Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid level checks, belt inspection/replacement.
Diagnostic Troubleshooting:
Step-by-step diagnostic procedures for common and complex issues, fault code interpretation.
Component Removal Installation:
Detailed instructions for removing and installing major and minor components across all systems.
Rebuild Procedures:
Complete rebuild procedures for engines and transmissions, including torque specifications and clearances.
Electrical Troubleshooting:
Wiring diagrams interpretation, component testing, common electrical faults.
Calibration Adjustments:
Adjustments for idle speed, ignition timing (if applicable), brake booster.
Depth Of Coverage:
Comprehensive, covering everything from basic preventative maintenance to complete engine and transmission rebuilds.
Diagnostic Capability:
Advanced diagnostics for engine management, ABS, and other electronic systems prevalent in this era.
Special Tools:
Lists and descriptions of necessary special tools for specific procedures.
Oil Change Interval:
Recommended every 10,000-15,000 km (6,000-9,000 miles) or annually, depending on driving conditions.
Air Filter Replacement:
Recommended every 30,000-50,000 km (18,000-30,000 miles).
Spark Plug Replacement:
Recommended every 60,000-100,000 km (36,000-60,000 miles) depending on plug type (e.g., iridium).
Engine Oil Type:
API SG or higher, SAE 5W-30 or 5W-40 Synthetic recommended (consult manual for exact BMW approval).
Coolant Type:
BMW Blue or compatible OAT (Organic Acid Technology) coolant, typically a 50/50 mix with distilled water.
Transmission Fluid Manual:
SAE 75W-90 GL-4 or GL-5 gear oil (check specific recommendation).
Transmission Fluid Automatic:
BMW ATF LT-3 or equivalent (check specific recommendation).
Cooling System Weaknesses:
Plastic coolant expansion tank can become brittle, hoses can degrade. Water pump seal failure.
M60 Engine Issues:
Timing chain guides (plastic) can wear and fail, leading to catastrophic engine damage if not addressed. Vanos system (variable camshaft timing) can develop leaks or solenoid issues.
Electrical Gremlins:
Common for aging electronics; degraded wiring insulation, faulty door modules, sensor failures (e.g., MAF, O2).
Suspension Wear:
Control arm bushings, ball joints, and shock mounts are common wear items.
Heater Core:
Can leak, causing cabin fogging and coolant loss.