Segment:
Compact Executive Sedan/Coupe/Convertible
Target Audience:
Enthusiast owners, independent repair shops, DIY mechanics
Key Competitors:
Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35/G37
Performance Focus:
High-performance twin-turbocharged N54 engine, RWD and AWD options
Handling:
Renowned BMW driving dynamics, balanced chassis
Benefit:
Empowers owners and technicians with the knowledge to maintain, diagnose, and repair the vehicle effectively, saving time and money.
Engine:
Complete overhaul, diagnosis, repair, tuning (N54 twin-turbo inline-6), cooling system, fuel system, ignition system, lubrication system, exhaust system
Transmission:
Manual (GS6-37BZ) and Automatic (GA6HP19Z, GA6HP26Z) transmission service, repair, diagnostics, fluid changes
Drivetrain:
xDrive all-wheel drive system (335xi), rear-wheel drive system, differentials, drive shafts, axles
Suspension:
Front and rear suspension components, shock absorbers, struts, springs, control arms, anti-roll bars, steering system, power steering
Brakes:
Brake system components (calipers, rotors, pads), ABS, DSC, brake fluid service, parking brake
Electrical:
Complete electrical system, battery, alternator, starter, wiring diagrams, fuses, relays, lighting, ECUs, sensors
Bodywork:
Body panels, doors, windows, locks, mirrors, convertible top mechanisms (E93), interior trim, body repair
HVAC:
Heating, ventilation, and air conditioning system service and repair
Infotainment:
CCC/CIC iDrive systems, audio, navigation (basic troubleshooting)
Maintenance:
Oil change, filter replacement, spark plug replacement, fluid checks and changes, brake pad/rotor replacement, tire rotation
Troubleshooting:
Diagnostic procedures, fault code interpretation, common issues and solutions for N54 engine and related systems
Repair:
Engine component replacement, transmission rebuild, suspension repair, brake system repair, electrical component replacement, body panel repair
Diagnostics:
OBD-II diagnostics, sensor testing, actuator testing, component-level troubleshooting
Technical Specifications:
Torque specifications for all fasteners, component clearances, diagnostic values
Depth:
Comprehensive: from basic routine maintenance to complete engine and transmission overhauls, electrical system diagnostics, and bodywork
Configuration:
3.0L (2979cc) Twin-Turbocharged Inline 6-Cylinder
Horsepower Hp:
300 hp @ 5800-6000 rpm (approx.)
Torque Lb Ft:
300 lb-ft @ 1400-5000 rpm (approx.)
Bore X Stroke:
84.0 mm x 89.6 mm
Compression Ratio:
10.2:1
Fuel Delivery:
High-pressure direct injection (Direct Injection)
Fuel Type:
Premium Unleaded Gasoline (91+ Octane Recommended)
Coolant Type:
BMW Blue Antifreeze/Coolant (G48 type, 50/50 mix with distilled water)
Oil Type:
BMW Longlife-01 (LL-01) or BMW Longlife-04 (LL-04) Approved Synthetic Oil
Oil Viscosity:
SAE 0W-40 or 5W-40 (check owner's manual for specific climate recommendations)
Type:
6-Speed Manual (Getrag GS6-37BZ)
Type:
6-Speed Steptronic Automatic (ZF GA6HP19Z / GA6HP26Z)
Automatic Modes:
Sport, Manual Shift (via paddle shifters or selector lever)
Fluid Specifications Manual
Fluid Type:
MTF LT-2 or equivalent manual transmission fluid
Fluid Specifications Automatic
Fluid Type:
BMW ATF LT-5 (Shell M-1375.4) or ZF Lifeguardfluid 6 (LF-6)
NHTSA Front Crash Test:
5-Star (Sedan)
IIHS Top Safety Pick:
Yes (for applicable years/body styles)
Stability Control:
Dynamic Stability Control (DSC), Dynamic Traction Control (DTC)
Braking Assistance:
Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist
Airbags:
Front airbags, side-impact airbags, head protection system (curtain airbags)
Seatbelts:
3-point seat belts with pretensioners and force limiters
System:
iDrive (CCC or CIC depending on build date), Professional Navigation System, Bluetooth connectivity, USB integration
Audio Options:
Standard Hi-Fi, Logic7 Surround Sound System
Features:
Park Distance Control (PDC), Adaptive Headlights, Cruise Control
Bluetooth:
Standard on most models, for hands-free calling and audio streaming
Oil Change Interval:
Condition Based Service (CBS) system, typically 10,000-15,000 miles or annually
Brake Fluid Change:
Every 2 years (per CBS)
Spark Plug Replacement:
Approximately every 60,000 miles (N54 engine)
Coolant Capacity:
Approx. 7.0 Liters (14.8 Pints) with heating system
Washer Fluid Capacity:
Approx. 4.5 Liters (1.2 US gallons)
Engine:
High-pressure fuel pump (HPFP) failure, Injector issues, Turbocharger wastegate rattle, PCV system problems, Oil cooler gasket leaks
Electrical:
Water pump failure (electric), Idrive controller issues, Battery drain
Drivetrain:
Clutch wear (manual transmission), Differential seal leaks
