Segment:
Compact Executive Sedan/Saloon
Target Audience:
Enthusiasts, DIY mechanics, professional workshops specializing in BMW vehicles
Key Competitors:
Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35
Driving Dynamics:
Renowned for its balanced chassis, responsive steering, and engaging driving experience
Powertrain Refinement:
Smooth and potent 3.0L inline-six engine known for its durability and linear power delivery
Build Quality:
Typical BMW high-quality interior materials and robust construction
Engine Coverage:
3.0L Inline-6 (N52B30)
Transmission Coverage:
6-speed Manual (GS6-37BZ), 6-speed Automatic (GA6HP-19Z)
Chassis Coverage:
Suspension, Steering, Brakes, Body Structure
Electrical Coverage:
Full Electrical Schematics, Lighting, Powertrain Control, Body Electronics, Infotainment
Estimated Page Count:
1500-2000+
Type:
Full Service and Repair Manual
Powertrain:
Engine mechanical, fuel injection, ignition, emissions control, cooling system, lubrication system, exhaust system
Drivetrain:
Clutch, manual transmission, automatic transmission, drive shafts, differentials, axles
Suspension Steering:
Front suspension, rear suspension, steering system components, alignment specifications
Brakes:
Front and rear brake systems (disc brakes), ABS (Anti-lock Braking System), DSC (Dynamic Stability Control)
Electrical System:
Battery, charging system, starter, lighting system (headlights, taillights, interior), body control module (BCM), comfort systems, power accessories
HVAC:
Heating, Ventilation, and Air Conditioning system components and diagnosis
Body Exterior:
Body panels, doors, windows, mirrors, bumpers, convertible top (if applicable to trim)
Body Interior:
Seats, dashboard, trim panels, airbags, seatbelts
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, brake pad replacement
Troubleshooting:
Diagnostic fault codes (DTCs), common problem identification and solutions
Repair And Rebuild:
Engine overhaul, transmission repair, suspension component replacement, brake caliper overhaul, electrical component replacement
Diagnostics:
Detailed diagnostic procedures for all major systems, using BMW's diagnostic tools (e.g., ISTA/D concepts)
Special Tools:
Listing and usage of specialized BMW tools required for specific repairs
Depth:
Comprehensive from basic maintenance to complete engine and transmission rebuilds, including electrical system diagnostics and wiring diagrams.
Type:
6-speed Manual Transmission (GS6-37BZ)
Type:
6-speed Steptronic Automatic Transmission (GA6HP-19Z)
Clutch:
Hydraulically actuated single-plate dry clutch (Manual)
Automatic Features:
Adaptive shift logic, sport mode, manual mode (Steptronic)
NHTSA Front Impact:
5-Star (Driver and Passenger)
Stability Control:
Dynamic Stability Control (DSC)
Traction Control:
Automatic Stability Control and Traction (ASC+T)
Braking:
Anti-lock Braking System (ABS), Electronic Brake Force Distribution (EBD), Brake Assist
Airbags:
Frontal airbags, side-impact airbags, head protection system (curtain airbags)
Seat Belts:
Pretensioning seatbelts with force limiters
System Name:
iDrive (Optional, first generation)
Features:
Central display screen, rotary controller for navigation, audio, and climate control (depending on options).
Parking Sensors:
Optional Park Distance Control (PDC) front and rear
Bluetooth:
Optional Bluetooth hands-free system
Oil Change Interval:
Variable, typically 10,000-15,000 miles or 12-24 months, based on oil quality and driving conditions (Condition Based Service - CBS)
Brakes Inspection:
Every 15,000 miles or 12 months
Engine Air Filter:
Every 30,000 miles or 24 months
Cabin Air Filter:
Every 15,000 miles or 12 months
Spark Plugs:
Every 60,000 miles (Iridium type)
Engine Oil:
SAE 0W-30 or 5W-30 Synthetic, meeting BMW LL-01 specification
Coolant:
BMW Blue Antifreeze/Coolant (G48) or equivalent silicate-free ethylene glycol based coolant
Brake Fluid:
DOT 4 Low Viscosity (LV) High Performance Brake Fluid
Transmission Fluid Manual:
SAE 75W-80 or 75W-90 Synthetic Manual Transmission Fluid (API GL-4 or GL-5)
Transmission Fluid Automatic:
BMW Approved ATF (e.g., ATF LT-3 or equivalent)
Crankcase Ventilation System:
PCV valve and hoses can degrade, leading to rough idle and oil leaks.
Coolant Leaks:
Water pump (often plastic impeller) and thermostat housing are common failure points.
Oil Pan Gasket:
Can leak over time due to age and material degradation.
Valve Cover Gasket:
Another common source of oil leaks.
Power Steering Pump:
Can develop leaks or noisy operation.
Bmw Legacy:
BMW has a long-standing reputation for producing driver-focused luxury vehicles with excellent engineering and performance.
E90 Introduction:
The E90 generation 3 Series marked a significant redesign, introducing more advanced technology, a larger size, and a focus on improved comfort and efficiency.
N52 Engine Debut:
The N52 engine was a key introduction for this generation, offering improved power and efficiency over its predecessor, the M54.
Production Period:
2005-2011 (Global for E90 generation)
Ward Auto World Engine Award:
The N52 engine (3.0L inline-6) was a multiple recipient of Ward's 10 Best Engines award during its tenure, including for this generation.
Car And Driver 10 Best:
The BMW 3 Series has frequently appeared on Car and Driver's 10Best lists, often lauded for its handling and performance.
