Vehicle Segment:
Compact Executive Sedan/Wagon
Competitive Set:
Mercedes-Benz C-Class, Audi A4, Lexus IS, Infiniti G35
Key Selling Points For Model:
Sporting dynamics, premium interior, advanced engineering, xDrive all-wheel drive system
Manual Advantage:
Official licensing ensures accuracy and completeness, unlike generic aftermarket guides. Digital format offers quick access and searchability.
Engine System:
Engine mechanical, lubrication, cooling, fuel delivery, ignition, exhaust, emissions, engine management (DME)
Transmission System:
Manual and Automatic Transmission service, repair, and diagnostics (including Steptronic)
Drivetrain System:
xDrive All-Wheel Drive system (transfer case, differentials, driveshafts, CV joints)
Suspension System:
Front and rear suspension, steering system, wheel alignment
Braking System:
Brake system service, repair, ABS, DSC (Dynamic Stability Control), brake bleeding procedures
Electrical System:
Complete electrical system diagnosis, wiring diagrams, starter, alternator, battery, lighting, fuses, relays
Body And Interior:
Body panels, doors, windows, seats, HVAC, interior trim, safety restraints (airbags)
Comfort Systems:
Climate control, power accessories, central locking, cruise control
Diagnostic Procedures:
Troubleshooting guides, fault code interpretation, diagnostic connector locations (OBD-II)
Maintenance Procedures:
Oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt inspection and replacement
Repair Procedures:
Component removal and installation, rebuild procedures for major assemblies (engine, transmission), component testing
Troubleshooting Guides:
Step-by-step diagnostic flowcharts for common and uncommon issues
Specifications And Tolerances:
Torque specifications, clearances, fluid capacities, electrical resistance values
Depth Of Coverage:
Detailed, professional-level repair and diagnostic information suitable for experienced DIYers and professional technicians
NHTSA Front Crash Test Rating:
5 Stars
NHTSA Side Impact Crash Test Rating:
5 Stars
IIHS Front Offset Rating:
Good
IIHS Side Impact Rating:
Good
Active Safety Systems:
Dynamic Stability Control (DSC), Anti-lock Braking System (ABS), Traction Control System (TCS), Electronic Brake-force Distribution (EBD)
Passive Safety Features:
Front airbags, front side-impact airbags, front and rear head protection system (Airbags), front seatbelt pretensioners
Infotainment System Name:
BMW Professional Radio/Navigation (optional)
Display Type:
Dot-matrix or color LCD screen (depending on option)
Audio Features:
AM/FM radio, CD player, cassette player (early models), optional CD changer, Harman Kardon audio system (optional)
Driver Assistance Features:
Cruise Control, Rain-sensing wipers (optional), Xenon Adaptive Headlights (optional)
Connectivity Options:
Optional Bluetooth phone preparation, SiriusXM Satellite Radio (optional)
Oil Change Interval:
Typically every 10,000-15,000 miles or 12-24 months, depending on driving conditions and oil type. Refer to Condition Based Service (CBS) if equipped.
Air Filter Replacement:
Every 30,000 miles or as needed based on inspection.
Cabin Filter Replacement:
Every 15,000-20,000 miles or annually.
Spark Plug Replacement:
Original equipment typically long-life (e.g., 100,000 miles for specific types), but check manual for exact recommendations.
Coolant Flush:
Every 2-4 years or 30,000-60,000 miles, depending on coolant type.
Engine Oil Specification:
BMW Longlife-01 (LL-01) or LL-04 approved synthetic oil, 5W-30 or 5W-40 recommended. (e.g., Castrol Syntec, Mobil 1)
Engine Oil Capacity:
6.5 US quarts (6.2 Liters) with filter change
Coolant Specification:
BMW Blue Antifreeze/Coolant (G48 type) mixed 50/50 with distilled water.
Transmission Fluid Specification Auto:
BMW ATF LT-10 (e.g., Pentosin ATF1 or equivalent DEXRON III compatible fluid for some earlier versions, verify with manual).
Transmission Fluid Specification Manual:
BMW MTF LT-2 or equivalent 75W-80/75W-90 GL-4 synthetic gear oil.
Transfer Case Fluid:
BMW xDrive Transfer Case Fluid (e.g., Pentosin DP 1187 or equivalent).
Differential Fluid:
Hypoid gear oil SAE 75W-90 GL-5 for front and rear differentials.
Common Issues Engine:
VANOS solenoid failures, oil leaks (valve cover gasket, oil pan gasket, oil filter housing gasket), PCV system issues, CCV system failure (can lead to vacuum leaks or crankcase pressure issues).
Common Issues Cooling System:
Plastic coolant expansion tank cracking, water pump failure (especially electric models on later E46s, but mechanical on M54), thermostat failure.
Common Issues Suspension Steering:
Front control arm bushings (RTABs), tie rod ends, ball joints, wheel bearing failures, subframe cracking (especially on earlier E46s).
Common Issues Electrical:
ABS/DSC sensor failures, headlight leveling sensor issues, battery drain (alternator, voltage regulator, parasitic draw), LCM (Light Control Module) issues.
Common Issues Drivetrain:
X-Drive transfer case solenoids or actuator issues, driveshaft flex disc wear.
Brand Legacy:
BMW, established in 1916, is renowned for its 'Ultimate Driving Machine' philosophy, emphasizing performance, engineering, and driver engagement.
E46 Generation Period:
1998-2006 (global production)
330Xi Introduction:
Introduced as part of the E46 lineup, offering the performance of the 330i with the added all-weather capability of xDrive.
Production Location:
Various BMW plants globally, including Germany and South Africa.