Chassis Codes:
E90 (Sedan), E91 (Touring/Wagon), E92 (Coupe), E93 (Convertible)
Applicable Years:
2006, 2007, 2008, 2009, 2010
Target Audience:
Mechanical technicians familiar with BRP products and general automotive practices, as well as knowledgeable DIY enthusiasts.
Value Proposition:
Provides dealer-level service information, enabling owners to save money and perform repairs like a professional.
Accuracy:
Endeavored to ensure accuracy of information.
Completeness:
A complete service manual with all necessary instructions.
Safety Emphasis:
Emphasizes safety equipment and precautions, including the use of torque wrenches.
Special Tool Identification:
Refers to and illustrates BMW special tools with their part numbers.
Engine:
Detailed repair, overhaul, tune-ups, lubrication, fuel system, ignition.
Drivetrain:
Transmission disassembly and assembly, potential coverage of drivetrain components.
Electrical System:
Comprehensive coverage of electrical systems.
Chassis:
Suspension, steering, brakes, exhaust system.
Body:
Bodywork repair and related procedures.
Cooling System:
Includes repair and maintenance of radiators, water pumps, thermostats, and coolant hoses.
Exhaust System:
Information on exhaust components, catalytic converters, and mufflers.
Steering System:
Covers power steering components, steering rack, and alignment procedures.
Brake System:
Detailed procedures for brake pad and rotor replacement, caliper service, brake fluid bleeding, and ABS system components.
Maintenance:
Routine maintenance and servicing procedures.
Repair:
Diagnostic and repair procedures for various faults and issues.
Assembly Disassembly:
Detailed instructions for component and system removal and installation.
Diagnostics:
Troubleshooting and diagnostic procedures.
Tune Ups:
Includes procedures for spark plug replacement, ignition system checks, and fuel system adjustments for optimal performance.
Tire Wheel Service:
Information on tire pressures, wheel torque specifications, and potentially wheel bearing replacement.
HVAC System:
Likely covers climate control system components, refrigerant, and common repair procedures.
Depth:
Advanced diagnostics, engine and transmission disassembly/rebuild, proprietary component details.
Diagnostic Tools:
Implies use of diagnostic tools and procedures common in BMW dealerships, potentially referencing ISTA/D or similar diagnostic software concepts.
Engine Variants:
This manual covers various engine variants typical for the E90/E91/E92/E93 generation, likely including N52 (3.0L naturally aspirated inline-6), N54 (3.0L twin-turbocharged inline-6), N55 (3.0L single-turbocharged inline-6), and N43/N45/N46 (2.0L/2.5L naturally aspirated inline-4) engines depending on the specific market and model designation (e.g., 320i, 323i, 325i, 328i, 330i, 335i).
Horsepower Range:
Typically ranging from approximately 170 hp to over 300 hp, depending on the specific engine variant.
Torque Range:
Varies significantly with engine variant, from around 160 lb-ft to over 300 lb-ft.
Fuel Delivery:
Likely includes fuel injection systems (port or direct injection depending on engine).
Fuel Type:
Premium unleaded gasoline.
Common Engines:
N52B30 (325i/330i), N54B30 (335i), M54B25 (325i - early production overlap).
Standard Transmission:
Manual transmission (e.g., Getrag GS6-37DZ) and automatic transmission (e.g., ZF 6HP series) were common.
Optional Transmission:
All-wheel drive (xDrive) variants often feature specific transmission configurations.
Transmission Fluid:
Specific ZF Lifeguard fluids or equivalent are often required for automatic transmissions, manual gear oil specifications vary.
Transmission Codes Examples
Common Transmissions:
ZF 6HP19 / 6HP26 (automatic), Getrag GS6-37DZ (manual).
Body Styles:
Sedan (E90), Touring/Wagon (E91), Coupe (E92), Convertible (E93).
Curb Weight:
Ranges from approximately 3,300 lbs to over 4,000 lbs depending on body style and drivetrain.
Exterior Dimensions Examples
Wheelbase:
Varies by body style, e.g., E90 Sedan: ~108.7 inches.
Length:
Varies by body style, e.g., E90 Sedan: ~180.9 inches.
Gross Vehicle Weight Rating:
Typically around 4,500 - 5,000 lbs.
NHTSA Ratings:
Generally received high safety ratings from NHTSA and IIHS during its production years.
Active Safety:
Dynamic Stability Control (DSC), Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Traction Control System (TCS).
Passive Safety:
Multiple airbags (front, side, curtain), crumple zones, reinforced passenger cell.
Infotainment System:
iDrive system (various iterations), professional navigation, Bluetooth connectivity, satellite radio, CD changer.
Driver Assistance Features:
Parking sensors (PDC), adaptive headlights, cruise control, rain-sensing wipers, automatic climate control.
Connectivity Options:
BMW Assist, Bluetooth for phone calls and audio streaming.
Oil Change Interval:
Typically every 10,000-15,000 miles or as indicated by the vehicle's Condition Based Service (CBS) system.
Brake Fluid Change:
Generally recommended every 2 years.
Engine Oil Type:
BMW Longlife-01 (LL-01) or BMW Longlife-04 (LL-04) compliant synthetic oils, typically 0W-30 or 5W-30 viscosity.
Coolant Type:
BMW Premium Coolant (G48) or equivalent ethylene glycol-based antifreeze.
Common Problems:
Water pump/thermostat failure (especially electric water pumps on later models), ignition coil/spark plug issues, oil filter housing gasket leaks, VANOS system issues, power steering leaks, fuel injector problems (especially on direct injection engines), CCV (Crankcase Ventilation) system failures, suspension component wear (bushings, control arms).
Preventative Maintenance:
Regular oil changes, coolant flushes, attention to oil leaks, and replacement of worn suspension components are crucial.
Fluid Specifications Examples
Transmission Fluid Auto:
ZF Lifeguardfluid 6 (or equivalent approved for 6HP series).
Manual Transmission Fluid:
BMW MTF LT-2 or equivalent manual transmission fluid (viscosity varies).
Power Steering Fluid:
Pentosin CHF 11S or equivalent hydraulic fluid.
Brand Focus:
BMW is renowned for its 'Ultimate Driving Machine' philosophy, emphasizing performance, luxury, and driver engagement.
Generation:
The E90 generation succeeded the E46 and introduced significant technological advancements and design updates, marking BMW's fifth generation of the 3 Series sedan.
Production Years:
2005-2013 (global production, with specific models and variants fitting the 2006-2010 timeframe).
