Segment:
Premium Compact Executive Sedan/Wagon
Target Audience:
Enthusiasts, DIY mechanics, professional technicians seeking detailed repair information
Competitors:
Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35/G37
Vehicle Focus:
Balanced handling, refined powertrain, premium interior, sporty driving dynamics
Manual Benefit:
Empowers owners and technicians with the knowledge to maintain and repair effectively, saving costs and ensuring longevity
Engine:
3.0L Inline-6 (N52B30)
Transmission:
6-speed Manual, 6-speed Automatic (Steptronic)
Drivetrain:
Rear-Wheel Drive (330i), All-Wheel Drive (330xi)
Chassis:
Suspension, Steering, Brakes, Body Structure
Electrical:
Wiring Diagrams, ECU, Sensors, Lighting, Audio, Convenience Features
Body:
Interior, Exterior Panels, HVAC, Safety Systems
Type:
Workshop Service Repair Manual
Engine Management:
Detailed diagnostics, component testing, timing, fuel injection, ignition, VANOS, Valvetronic
Powertrain Control:
Engine Control Unit (ECU) identification, programming, and troubleshooting
Drivetrain Components:
Clutch, flywheel, driveshafts, differential, AWD system components (xDrive)
Suspension Geometry:
Front and rear suspension alignment specifications, component replacement (struts, control arms, bushings)
Brake System:
Brake fluid specifications, ABS, DSC, EBD operation, pad/rotor replacement, caliper service
Steering System:
Power steering system, steering rack, tie rod ends, column diagnostics
Climate Control:
HVAC system operation, refrigerant handling, blower motor, A/C compressor, heater core
Safety Systems:
Airbag system (SRS), seatbelt pre-tensioners, occupant classification system
Lighting And Signals:
Headlights, taillights, interior lighting, turn signals, hazard lights
Instrumentation And Gauges:
Dashboard display, warning lights, sensor input
Comfort And Convenience:
Power windows, mirrors, seats, central locking, sunroof
Maintenance Tasks:
Oil changes, filter replacements, spark plug replacement, belt inspection/replacement
Diagnostic Procedures:
Troubleshooting guides for common and uncommon issues, fault code interpretation
Repair Operations:
Step-by-step instructions for component removal, installation, and adjustment
Rebuilding Procedures:
Engine component rebuilding (pistons, rings, bearings), transmission overhaul
Wiring Diagram Interpretation:
Schematics for various electrical systems, component identification on diagrams
Torque Specifications:
Precise torque values for critical fasteners across all systems
Depth:
Comprehensive from basic maintenance to complete engine and transmission rebuilds, in-depth diagnostics
NHTSA Front Crash:
4 stars
NHTSA Side Impact:
5 stars
Stability Control:
Dynamic Stability Control (DSC)
Traction Control:
Traction Control System (TCS)
Braking Assist:
Anti-lock Braking System (ABS), Dynamic Brake Control (DBC)
Airbags:
Frontal airbags, front side-impact airbags, head protection system (curtain airbags)
Seatbelts:
3-point inertia-reel seatbelts with front seatbelt pretensioners and force limiters
System Name:
iDrive (various iterations)
Features:
Central display, rotary controller, optional navigation, radio, CD player, Bluetooth (often via adapter or specific packages).
Features:
Tire Pressure Monitoring System (TPMS), optional Adaptive Headlights, Park Distance Control (PDC)
Features:
Optional Bluetooth integration for hands-free calling and audio streaming.
Oil Change Interval:
Variable Oil Service (CBS - Condition Based Service), typically around 10,000-15,000 miles or annually.
Brake Fluid Flush:
Every 2 years, regardless of mileage.
Coolant Flush:
BMW's Long-Life Coolant (approx. every 4 years or 100,000 miles, consult manual for specifics).
Spark Plug Replacement:
Typically around 60,000-100,000 miles, depending on usage and specific spark plug type.
Engine Oil Type:
BMW Longlife-01 (LL-01) approved synthetic oil, SAE 0W-30 or 5W-30 recommended.
Engine Oil Capacity:
6.5 US quarts (6.2 liters) with filter change.
Coolant Type:
BMW Blue Longlife Coolant (G48) or equivalent ethylene glycol-based coolant, mixed 50/50 with distilled water.
Oil Pan Gasket Leaks:
Common issue due to age and material degradation, requiring replacement.
Crankshaft Seal Leaks:
Another prevalent leak point that needs attention.
Water Pump Failure:
The electric water pump in later N52 models can fail prematurely.
Pcv Valve Issues:
Can lead to rough idle, oil consumption, or whistling noises.
Valve Cover Gasket Leaks:
Common due to heat and age, often accompanied by oil smell.
Suspension Bushings:
Wear and tear on control arm bushings and sway bar links can lead to clunking noises and imprecise handling.
Bmw Legacy:
Longstanding reputation for building driver-focused, sporty, and luxurious vehicles with sophisticated engineering.
E90 Generation Introduction:
The E90 generation marked a significant redesign for the 3 Series, introducing more advanced technology, sharper styling, and refined drivetrains compared to the E46.
330I Positioning:
The 330i served as a potent mid-range model, offering a balance of performance, luxury, and efficiency within the 3 Series lineup.
Manufacturing Locations:
Primarily Germany (e.g., Munich, Dingolfing), with some assembly potentially in other global locations.
