Engine Mechanical:
Cylinder Head, Block, Pistons, Crankshaft, Connecting Rods, Valvetrain
Engine Management:
Fuel Injection (DME), Ignition System, Sensors (MAF, O2, Crank, Cam), ECU
Cooling System:
Radiator, Water Pump, Thermostat, Hoses, Coolant Types
Exhaust System:
Exhaust Manifold, Catalytic Converter, Muffler, O2 Sensors
Fuel System:
Fuel Pump, Filter, Injectors, Fuel Tank, Lines
Transmission Manual:
Clutch, Gearbox, Shifter Linkage, Torque Specs
Transmission Automatic:
Transmission Unit, Valve Body, Torque Converter, Fluid Changes, Solenoids
Drivetrain:
Driveshaft, CV Joints, Differential, Axles
Suspension Front:
Struts, Control Arms, Bushings, Ball Joints, Springs
Steering:
Power Steering Pump, Rack and Pinion, Tie Rods, Steering Column
Brakes Front:
Vented Discs, Calipers, Pads, ABS Components
Electrical System:
Battery, Alternator, Starter Motor, Wiring Diagrams, Fuses, Relays
Rear Suspension:
Multi-link Suspension, Control Arms, Bushings, Springs, Shocks
Rear Brakes:
Solid Discs, Calipers, Pads, ABS Components
Lighting System:
Headlights, Taillights, Interior Lights, Fog Lights
Instrumentation:
Instrument Cluster, Gauges, Warning Lights
Comfort Systems:
Climate Control (HVAC), Power Windows, Locks, Mirrors, Seats
Panels:
Fenders, Hood, Doors, Trunk Lid, Bumpers, Body Alignment
Glass Seals:
Windshield, Side Glass, Rear Glass, Seals, Wipers
Trim:
Dashboard, Door Panels, Headliner, Carpets, Seats
Routine Maintenance:
Oil Changes, Filter Replacements, Fluid Checks, Spark Plug Replacement
Troubleshooting:
Diagnostic Codes (OBD-I/II), Symptom-Based Diagnostics, Electrical Fault Finding
Repair Procedures:
Component Replacement, Engine Rebuild, Transmission Overhaul, Suspension Bushing Replacement
Component Disassembly:
Step-by-step guides for removing and reinstalling major components
Wiring Diagrams:
Comprehensive electrical schematics for all systems
Specifications Torque:
All critical fastener torque values
Depth:
Comprehensive, suitable for professional technicians and advanced DIYers
Diagnostic Capability:
Detailed diagnostic procedures, including specific test measurements and expected values
Type:
5-Speed Manual (Getrag 260/5)
Type:
4-Speed Automatic (ZF 5HP18)
Manual Gear Ratios:
1st: 4.23, 2nd: 2.52, 3rd: 1.67, 4th: 1.23, 5th: 1.00, Reverse: 3.71
Automatic Features:
Sport Mode, Lock-up Torque Converter
Transmission Fluid Manual:
MTF LT-2 (BMW Manual Transmission Fluid)
Transmission Fluid Automatic:
ZF Lifeguardfluid 5 (or equivalent ATF)
Automatic Fluid Capacity:
~8.5 Quarts (8.0 Liters)
Oil Change Interval:
Every 7,500 - 10,000 miles or 12 months (depending on driving conditions and oil used), consult manual for specific service indicator reset procedures.
Air Filter Replacement:
Every 30,000 miles or as needed based on inspection
Spark Plug Replacement:
100,000 miles for Long-life Platinum/Iridium plugs (e.g., NGK BKR6EQUP), check manual for specific plug type and interval.
Coolant Flush:
Every 2-3 years or 60,000 miles
Transmission Fluid Change Auto:
Every 60,000 miles or as recommended by BMW, often considered 'lifetime' but fluid degradation occurs.
Brake Fluid Flush:
Every 2 years (hygroscopic nature)
Coolant Type:
BMW Blue Coolant (G48 formulation) or equivalent ethylene glycol based with silicate inhibitors
Power Steering Fluid:
Pentosin CHF 11S or equivalent hydraulic fluid
Differential Fluid:
SAE 75W-90 Synthetic Gear Oil (GL-5 rated)
Cooling System:
Plastic expansion tank cracking, water pump failure (plastic impeller type), thermostat housing leaks.
Suspension:
Worn control arm bushings (lollipops), strut mount failure, rear trailing arm bushings.
Electrical:
Sensor failures (MAF, O2), VANOS solenoid issues, door seal moisture ingress affecting modules.
Engine:
Oil filter housing gasket leaks, oil pan gasket leaks, PCV system issues.
Interior:
Headliner sagging, dashboard cracks, pixelation on instrument cluster displays.