Target Audience:
Professional BMW technicians, independent repair shops, and advanced DIY enthusiasts.
Value Proposition:
Provides official, accurate, and up-to-date repair information to ensure correct and efficient servicing.
Competitor Manuals:
Superior to aftermarket generic repair manuals due to official licensing and BMW-specific detail.
Official Licensing:
Ensures accuracy and completeness of technical data and procedures as released by BMW.
Digital Format Advantage:
Easy access, searchability, and potential for frequent updates (depending on software delivery).
Engine Mechanical:
Complete disassembly, inspection, and reassembly of all engine components.
Engine Electrical:
Ignition system, fuel injection system (DME - Digital Motor Electronics), sensors, actuators, wiring diagrams.
Transmission Manual:
Repair and overhaul procedures for the manual transmission, clutch system.
Transmission Automatic:
Diagnostic procedures, fluid service, and repair of the automatic transmission (e.g., GM 5L40-E or ZF 6HP).
Drivetrain:
Front and rear axle, driveshafts, differentials, limited-slip differential (if equipped).
Suspension:
Front and rear suspension components, shock absorbers, springs, control arms, alignment specifications.
Brakes:
Front and rear brake system, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake fluid specifications and bleeding procedures.
Steering:
Power steering system, steering rack, steering column, hydraulic fluid specifications.
Body And Chassis:
Body panel removal and installation, door mechanisms, chassis components, rust prevention.
Electrical Systems:
Lighting, power windows, central locking, mirrors, battery, alternator, starter, fuse box diagrams, complete wiring schematics.
HVAC:
Heating, Ventilation, and Air Conditioning system diagnosis and repair, refrigerant types, component replacement.
Interior:
Seat removal and installation, dashboard components, interior trim panels, airbag system safety precautions.
Scheduled Maintenance:
Detailed maintenance schedules, oil change procedures, filter replacements, inspection points.
Troubleshooting:
Diagnostic flowcharts and symptom-based troubleshooting guides for common and uncommon issues.
Repair And Rebuild:
Step-by-step repair procedures for virtually all vehicle systems, including major component overhauls.
Diagnostics:
Procedures for using diagnostic tools (e.g., BMW ISTA/D, INPA) and interpreting fault codes.
Specifications And Data:
Torque specifications for all fasteners, clearances, fluid capacities, and electrical values.
Depth Level:
Comprehensive (from basic maintenance to full engine rebuilds and complex electronic diagnostics).
Engine Code:
N52B30 (Aluminum block and cylinder head)
Engine Type:
3.0L Inline-6 Naturally Aspirated
Horsepower:
255 hp @ 6600 rpm
Torque:
214 lb-ft @ 2750 rpm
Bore X Stroke:
85.0 mm x 88.0 mm
Compression Ratio:
10.7:1
Fuel Delivery:
Sequential multi-point fuel injection (MPI) with high-pressure fuel pump.
Fuel Type:
Premium Unleaded Gasoline (91+ octane recommended)
Emission Control:
Valvetronic variable valve lift, Double VANOS variable camshaft timing, catalytic converters.
NHTSA Front Driver:
5-Star
NHTSA Front Passenger:
5-Star
NHTSA Side Driver:
5-Star
NHTSA Side Rear Passenger:
4-Star
Traction Control:
Automatic Stability Control (ASC) / Dynamic Traction Control (DTC)
Stability Control:
Dynamic Stability Control (DSC)
Braking Assist:
Brake Assist
Airbags:
Frontal airbags, front side-impact airbags, front and rear head protection system (HPS) curtain airbags.
Seatbelts:
3-point inertia-reel seat belts with pre-tensioners and force limiters.
I Drive System:
Features the first generation of BMW's iDrive infotainment system with a central controller and LCD screen for navigation, climate control, audio, and vehicle settings.
Audio Options:
Standard AM/FM/CD player, optional Logic7 premium sound system.
Parking Sensors:
Optional Park Distance Control (PDC) - front and rear.
Cruise Control:
Standard cruise control, optional Active Cruise Control (ACC) on some models.
Bluetooth:
Optional Bluetooth hands-free connectivity and phone interface.
Navigation:
Optional professional navigation system with DVD-based maps.
Oil Change Interval:
Variable, based on Condition Based Service (CBS) system (typically 10,000-15,000 miles or 12-24 months).
Brake Fluid Flush:
Every 2 years (BMW recommends DOT 4 LV)
Engine Air Filter:
Inspect every 30,000 miles, replace as needed based on CBS.
Cabin Microfilter:
Replace every 30,000 miles or annually.
Engine Oil:
BMW Longlife-01 (LL-01) certified synthetic oil, typically 5W-30 or 5W-40.
Coolant:
BMW Blue Antifreeze/Coolant (G48 ethylene glycol based concentrate, mixed 50/50 with distilled water).
Transmission Fluid Manual:
MTF LT-2 (BMW Part No. 83 22 0 309 031)
Transmission Fluid Automatic:
ATF LT-3 (BMW Part No. 83 22 0 024 289) or equivalent from ZF.
Power Steering Fluid:
Pentosin CHF 11S or BMW Power Steering Fluid (BMW Part No. 82 11 1 468 003)
Coolant Leaks:
Common failure points include the plastic coolant expansion tank, water pump, and thermostat housing/seal.
Valve Cover Gasket Leaks:
Oil leaks from the valve cover gasket and spark plug well seals are frequent due to material degradation.
Pcv System:
The Positive Crankcase Ventilation (PCV) valve integrated into the valve cover can fail, leading to rough idling, oil consumption, and vacuum leaks.
Oil Pan Gasket Leaks:
Oil seepage from the oil pan gasket is also a known issue.
ABS Wheel Speed Sensors:
These sensors can fail, triggering ABS and DSC warning lights.
Electric Water Pump Failures:
The electric water pump (for the engine cooling system) is a known failure point, often leading to overheating.
Brand Focus:
BMW is renowned for producing performance-oriented luxury vehicles with a focus on driving dynamics and engineering excellence.
E90 Introduction:
The E90 generation marked a significant redesign for the 3 Series, introducing more modern styling, advanced technology, and improved chassis dynamics over its E46 predecessor.
330I Positioning:
The 330i served as the mid-to-upper range sedan in the 3 Series lineup, offering a balance of performance and luxury without reaching the M3's extreme capabilities.
Manufacturing Plants:
Primarily manufactured at BMW's plant in Dingolfing, Germany, and Spartanburg, South Carolina (for certain markets).
Ward Auto:
The N52 engine received a Ward's 10 Best Engines award in 2006, recognized for its smooth operation, efficiency, and power delivery.
Car And Driver 5Best:
The E90 3 Series often appeared on Car and Driver's 10Best lists during its production run, highlighting its superior handling and driving experience.
N A:
N/A (Specific industry certifications for a repair manual are not typical, focus is on accuracy and licensing).