Vehicle Segment:
Executive Sedan / Mid-size Luxury Sedan
Key Competitors:
Mercedes-Benz E-Class, Audi A6, Lexus GS, Cadillac CTS, Volvo S80
Vehicle Highlights:
Rear-wheel drive (RWD) or optional xDrive all-wheel drive (AWD), sophisticated ride and handling, premium interior, advanced technology for its era.
Target Audience:
BMW owners, independent repair shops, automotive technicians
Benefits:
Accurate repair procedures, detailed specifications, diagnostic information, cost savings on repairs, proper maintenance.
Engine Mechanical:
Engine assembly, cylinder head, valve train, pistons, connecting rods, crankshaft, lubrication system, cooling system, fuel system, intake and exhaust systems, emissions control.
Engine Management:
Engine control unit (ECU) operation, sensors (MAF, O2, crank/cam position, throttle), actuators (injectors, ignition coils), fuel injection strategies, ignition timing, diagnostics and fault codes.
Transmission:
Automatic transmission (e.g., GA6HP19Z) and manual transmission (e.g., GS6-37BZ) operation, maintenance, repair, fluid specifications, torque converter, clutch components, mechatronics.
Drivetrain:
Driveshafts, CV joints, differential, axles, wheel bearings, rear axle assembly.
Suspension:
Front and rear suspension components, struts, shock absorbers, control arms, bushings, springs, anti-roll bars, steering knuckles, wheel alignment specifications.
Steering:
Power steering system (hydraulic or electric), steering rack, tie rods, steering column, power steering fluid specifications.
Brakes:
Front and rear brake systems, brake discs, pads, calipers, hydraulic lines, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake fluid specifications, bleeding procedures.
Electrical System:
12V battery system, alternator, starter motor, wiring diagrams, fuses, relays, lighting systems, power windows, door locks, mirrors, comfort access, keyless entry.
Body And Chassis:
Body panels, doors, hood, trunk, interior trim, body sealing, structural components, jacking points, towing points.
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system, climate control module, blower motor, refrigerant, cabin filter replacement, diagnostic procedures.
Infotainment And Electronics:
iDrive system, navigation, audio system, head unit, instrument cluster, dashboard controls, parking sensors, adaptive headlights.
Routine Maintenance:
Oil change, filter replacements (oil, air, cabin, fuel), spark plug replacement, coolant flush, brake fluid replacement, transmission fluid service.
Diagnostic Procedures:
OBD-II scanning, fault code interpretation, sensor testing, actuator testing, component troubleshooting, wiring harness checks.
Repair And Rebuild:
Engine component replacement (e.g., VANOS, water pump), transmission overhaul, brake system repair, suspension component replacement, electrical component repair.
Installation And Replacement:
Component replacement procedures for all major systems, including torque specifications for fasteners.
Troubleshooting Guides:
Systematic approaches to diagnosing common and complex issues, including symptom-based troubleshooting.
Depth:
Comprehensive (from basic maintenance to complete engine and transmission rebuilds, detailed electrical diagnostics).
Oil Change Interval Typical:
Condition-based service (CBS) or every 15,000 miles / 12 months (refer to specific vehicle's CBS recommendations).
Spark Plug Replacement Interval:
Approximately 100,000 miles (refer to manual for specific spark plug type and gap).
Cabin Air Filter Replacement:
Every 15,000 - 30,000 miles or as needed (depending on environmental conditions).
Engine Oil Type:
BMW Longlife-01 (LL-01) or Longlife-01 FE (LL-01 FE) synthetic oil, SAE 0W-30 or 5W-30
Engine Oil Capacity:
Approximately 6.5 quarts (6.2 liters) with filter change
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based)
Coolant Capacity:
Approximately 8.5 quarts (8.0 liters)
Brake Fluid Type:
DOT 4 BMW Super Blue or equivalent
Common Problems Engine:
Oil leaks (valve cover gaskets, oil pan gasket), VANOS solenoid issues, water pump failure, vacuum leaks, PCV system issues, ignition coil failures.
Common Problems Suspension Steering:
Control arm bushings, ball joints, steering rack leaks.
Common Problems Electrical:
CIC/CCC unit failures (iDrive system), battery drain issues, headlight leveling sensor issues, water ingress in modules.
Maintenance Schedule Highlights
15K Miles:
Oil change, filter replacement, vehicle check, cabin air filter inspection.
30K Miles:
Air filter replacement, brake fluid flush, spark plug inspection.
60K Miles:
Spark plug replacement, coolant inspection/flush (if needed).
100K Miles:
Spark plug replacement, inspect accessory drive belt, transmission fluid service (recommended).