Engine Mechanical:
Engine assembly, disassembly, rebuilding, cylinder head, pistons, crankshaft, camshaft, timing systems (chain/belt), lubrication, cooling
Engine Performance:
Fuel injection systems (direct and indirect), ignition systems, emissions control, engine management systems (DME), turbocharging/supercharging (where applicable)
Transmission Manual:
Manual gearbox repair, clutch system, shift mechanisms
Transmission Automatic:
Automatic transmission repair, valve body, torque converter, transmission control unit (TCU), fluid servicing
Drivetrain:
All-wheel drive (xDrive) system, differential (front, rear, center), drive shafts, axles, CV joints
Suspension:
Front and rear suspension components, shock absorbers, struts, springs, control arms, bushings, steering linkage
Steering:
Power steering system (hydraulic/electric), steering rack, steering column, wheel alignment specifications
Brakes:
Brake system overhaul, disc brakes, calipers, pads, rotors, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), EBD (Electronic Brakeforce Distribution), brake fluid specifications
Electrical System:
Battery, alternator, starter motor, wiring diagrams, fuses, relays, lighting systems (headlights, taillights, interior), charging system
Body And Chassis:
Body panel removal/installation, doors, hood, trunk, bumpers, chassis structure, rust repair, corrosion prevention
Interior:
Dashboard removal, seats, upholstery, trim panels, climate control system (HVAC), audio systems, airbags
Climate Control:
HVAC system components, refrigerant handling, blower motor, climate control modules, cabin air filter replacement
Infotainment And Electronics:
iDrive system, navigation, audio components, dashboard displays, sensors, control modules (ECU, TCU, ABS module, etc.)
Diagnostic Troubleshooting:
Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides, diagnostic tool usage (e.g., ISTA/D, DIS)
Scheduled Maintenance:
Oil changes, filter replacements (oil, air, cabin, fuel), spark plug replacement, fluid checks and changes (coolant, brake, power steering, transmission)
Repair Procedures:
Step-by-step instructions for all major repairs, component replacement, and system overhauls
Troubleshooting:
Systematic diagnosis of common and uncommon problems with detailed troubleshooting trees
Inspections:
Pre-purchase inspections, routine inspections, specific component checks
Wiring Diagrams:
Comprehensive electrical schematics for all vehicle systems
Technical Data Specifications:
Torque specifications, clearances, fluid capacities, pressure readings, diagnostic values
Depth:
Professional-level repair and diagnostic information
Detail Level:
Detailed photos, exploded diagrams, step-by-step instructions
Rebuild Instructions:
Complete engine and transmission rebuild procedures
Oil Change Interval:
Variable, often indicated by Condition Based Service (CBS) system, typically 10,000-15,000 miles or annually
Brake Fluid Flush:
Every 2 years
Coolant Flush:
Initial: 4 years, then every 2 years thereafter (BMW Blue or similar approved coolant)
Engine Oil:
SAE 5W-30 or 5W-40 Synthetic, meeting BMW LL-01 or LL-04 specifications (check specific engine)
Transmission Fluid Auto:
BMW ATF LT-5 (e.g., Esso/Mobil LT 71141) or equivalent spec for GM 5-speed/6-speed auto
Power Steering Fluid:
Pentosin CHF 11S or equivalent
Common Issues E60:
Water pump/thermostat failures (especially with N52/N54), VANOS solenoids/seals, oil leaks (valve cover gaskets, oil pan gaskets), CCV system issues (N52), ignition coil failures, eccentric shaft sensor failure (N62), power steering leaks, EGS (transmission control module) failures, iDrive system glitches, active steering pump failure.