Model Generation:
E90/E91/E92/E93
Applicable Years:
2006, 2007, 2008, 2009, 2010
Chassis Codes:
E90 (Sedan), E91 (Wagon/Touring), E92 (Coupe), E93 (Convertible)
Segment:
Premium Compact Executive Sedan/Coupe/Wagon
Key Competitors:
Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35/G37
Performance Orientation:
Known for its engaging driving dynamics, rear-wheel-drive bias (with xDrive AWD option), and balanced chassis.
Engine Variants:
Offered with a range of inline-four and inline-six gasoline engines, and efficient diesel engines in certain markets.
Primary Coverage:
Repair, Maintenance, Diagnostics, Troubleshooting, Wiring Diagrams, Specifications
Type:
Workshop Service Repair Manual
Format:
PDF (Digital Download)
Powertrain:
Engine mechanical, Engine electrical, Fuel system, Exhaust system, Cooling system, Lubrication system, Ignition system
Drivetrain:
Manual transmission, Automatic transmission (Steptronic), Transfer case (if applicable), Drive shafts, Axles, Differentials
Chassis:
Suspension (front and rear), Steering system, Brakes (hydraulic, ABS, DSC), Wheels and Tires
Electrical:
Body electrical systems, Lighting, Instrumentation, Audio system, HVAC controls, Power windows/locks/seats, Cruise control, SRS (Airbag) system, ECU and modules, Wiring diagrams
Body:
Body panels, Doors, Hood, Trunk, Bumpers, Glass, Seals, Interior trim, Seats
Maintenance:
Oil change, Filter replacement, Fluid checks and top-offs, Spark plug replacement, Brake pad/rotor replacement, Belt inspection and replacement
Repair:
Engine assembly/disassembly, Transmission repair, Suspension component replacement, Brake system bleeding and component replacement, Electrical component diagnosis and replacement, Body panel repair and replacement
Diagnostics:
Troubleshooting guides, Diagnostic trouble codes (DTCs) and their meanings, Symptom-based troubleshooting, Electrical circuit testing
Depth:
Comprehensive from basic fluid changes and checks to complete engine and transmission rebuilds, including detailed diagnostic procedures and wiring schematics.
Engine Code Example:
N52B30 (3.0L inline-six)
Horsepower Range:
170 hp to 300 hp (depending on engine variant)
Torque Range:
200 lb-ft to 300 lb-ft (depending on engine variant)
Injection Type:
Fuel Injection (Direct Injection on later models/variants)
Gasoline Engines:
N46B20 (2.0L I4), N52B25 (2.5L I6), N52B30 (3.0L I6), N54B30 (3.0L Twin-Turbo I6 - 335i/xi)
Diesel Engines:
M47D20 (2.0L Turbo Diesel I4), N47D20 (2.0L Turbo Diesel I4), M57D30 (3.0L Turbo Diesel I6)
IIHS Top Safety Pick:
Many models received IIHS Top Safety Pick awards during these years.
Stability Control:
Dynamic Stability Control (DSC) standard
Traction Control:
Automatic Stability Control and Traction (ASC+T)
Airbags:
Frontal airbags, Side airbags, Head protection system (curtain airbags)
System:
iDrive infotainment system (CCC or updated CIC depending on year and options).
Features:
Navigation, Radio, CD/DVD player, Bluetooth connectivity (optional), Aux input.
Adaptive Headlights:
Optional Xenon headlights with adaptive cornering function.
Parking Sensors:
Optional Park Distance Control (PDC).
Bluetooth:
Optional Bluetooth hands-free interface.
Oil Change Interval:
Variable Service Interval (VSI) based on driving conditions, typically between 10,000-15,000 miles or 1-2 years.
Brakes Inspection:
Regular checks for pad wear and rotor condition, often indicated by the Condition Based Service (CBS) system.
Air Filter Replacement:
Recommended every 30,000-50,000 miles, or as indicated by the CBS system.
Cabin Filter Replacement:
Recommended annually or every 15,000-20,000 miles.
Engine Oil Spec:
BMW Longlife-01 (LL-01) or BMW Longlife-04 (LL-04) synthetic oil, typically 0W-30 or 5W-30.
Coolant Spec:
BMW Blue Antifreeze/Coolant (G48), mixed 50/50 with distilled water.
Brake Fluid Spec:
DOT 4 BMW Brake Fluid.
Transmission Fluid Atf Spec:
Dexron VI for automatic transmissions, specific manual transmission fluid for manual gearboxes.
Cooling System:
Water pump failure (especially electric pumps), coolant leaks from hoses and expansion tank.
Engine N54:
High-pressure fuel pump (HPFP) failures, clogged fuel injectors, vacuum leaks, turbocharger issues.
Suspension:
Worn control arm bushings, strut mounts, and tie rod ends leading to steering looseness and uneven tire wear.
Electrical:
CCC/iDrive system glitches, power seat module failures, battery drain issues (often related to faulty modules).
Oil Pan Gasket Leaks:
Common on higher mileage vehicles, requiring significant labor to replace.
Bmw Philosophy:
BMW is renowned for its 'Ultimate Driving Machine' slogan, emphasizing performance, handling, and engineering excellence.
E90 Introduction:
The E90 generation marked a significant redesign from the E46, introducing more advanced technology, refined powertrains, and modern styling.
Manufacturing Locations:
Primarily manufactured in Germany (e.g., Dingolfing, Munich) and also in South Africa.
