🏷️ Basic Information

Make:

BMW

Model:

335i

Chassis Code:

E90 (Sedan), E91 (Wagon), E92 (Coupe), E93 (Convertible)

Generation Code:

E90/E91/E92/E93

Generation Years:

2006-2013 (Specific to 335i variants covered)

👋 Introduction

Positioning:

The BMW 335i (E90/E91/E92/E93) was positioned as the performance-oriented, turbocharged variant of the highly acclaimed 3 Series, bridging the gap between the standard 3 Series models and the M3. It offered potent acceleration and a sophisticated driving experience.

Competitors:

Competed directly with the Audi A4 3.2 FSI quattro, Mercedes-Benz C350 Sport, Infiniti G37, and Lexus IS 350. Its twin-turbocharged engine provided a distinct power advantage in its segment.

Engine Technology:

The N54 engine was a groundbreaking introduction for BMW, featuring twin-turbocharging, direct injection (High Precision Injection), and Double VANOS. It delivered V8-like power with inline-six smoothness.

Driving Dynamics:

Renowned for its balanced chassis, responsive steering, and engaging driving dynamics, characteristic of the BMW 3 Series legacy.

Availability:

Offered in sedan, wagon, coupe, and convertible body styles, providing versatility for different consumer needs.

📋 Manual Details

Covered Years:

2006, 2007, 2008, 2009, 2010

Covered Models:

BMW 335i Sedan (E90), 335i Wagon (E91), 335i Coupe (E92), 335i Convertible (E93)

Type:

Service and Repair Manual

Language:

English

Format:

PDF

📖 Manual Coverage

Engine:

Comprehensive coverage of the N54 twin-turbocharged inline-six engine, including maintenance, diagnostics, and repair procedures for all major components. Details on fuel injection, ignition system, turbocharger system, cooling, and lubrication.

Transmission:

Detailed procedures for both the Getrag 6-speed manual transmission (GS6-53DZ) and the ZF 6-speed automatic transmission (6HP19TU/6HP26TU), including fluid changes, clutch replacement, and transmission control module diagnostics.

Drivetrain:

Coverage of the rear-wheel drive system, including driveshafts, differentials, and axle shafts. Information on axle ratio specifications and potential issues.

Brakes:

Complete brake system overhaul, including disc brake systems (front and rear), ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), and brake fluid service. Details on rotor and pad replacement, caliper servicing, and bleeding procedures.

Suspension:

Front and rear suspension systems, including strut replacement, shock absorber service, control arm bushings, sway bar links, and steering components. Alignment specifications and procedures.

Steering:

Power steering system, including hydraulic pump, steering rack, and tie rod ends. Troubleshooting for steering play and noises.

Electrical System:

In-depth coverage of the vehicle's electrical architecture, including battery, alternator, starter motor, lighting systems, power windows, central locking, and accessory circuits. Includes wiring diagrams and diagnostic procedures.

Climate Control:

Heating, ventilation, and air conditioning (HVAC) system, including refrigerant service, blower motor replacement, evaporator core diagnosis, and climate control module troubleshooting.

Body And Chassis:

Body panel repair, door mechanisms, trunk/boot lid, hood/bonnet service, and interior trim removal and installation. Chassis component identification and basic inspection.

Diagnostic Troubleshooting:

Extensive troubleshooting guides for common and uncommon issues, often referencing diagnostic trouble codes (DTCs) and specific test procedures for various modules (ECU, TCU, ABS, etc.).

Maintenance:

Scheduled maintenance tasks, including oil changes, filter replacements (oil, air, cabin, fuel), spark plug replacement, coolant flushes, brake fluid changes, and differential fluid changes.

Repair:

Detailed step-by-step repair instructions for virtually every component of the vehicle, from minor adjustments to major overhauls, including engine teardown and reassembly, transmission rebuilds, and component replacements.

Diagnostics:

Procedures for diagnosing faults using diagnostic tools (e.g., ISTA/D), interpreting error codes, and performing specific system tests. Includes troubleshooting flowcharts for various symptoms.

Wiring Diagrams:

Comprehensive electrical wiring diagrams for all major systems, crucial for electrical troubleshooting and repairs.

Specifications:

Torque specifications for critical fasteners, fluid capacities, electrical specifications, and diagnostic parameters.

Depth:

Expert-level detail covering everything from basic maintenance to complete engine and transmission overhauls. Suitable for professional technicians and experienced DIY enthusiasts.

📊 Manual Specifications

Format:

PDF

Searchable:

Yes (typically OCR processed for searchability)

Quality:

High resolution, suitable for printing individual pages or sections.

Binding:

Not applicable (Digital PDF format)

Paper Type:

Not applicable (Digital PDF format)

⚙️ Engine Specifications

Engine Code:

N54B30

Engine Type:

3.0L Twin-Turbocharged Inline 6-cylinder

Bore X Stroke:

84.0 mm x 89.6 mm

Displacement:

2979 cc (3.0 Liters)

Compression Ratio:

10.2:1

Horsepower:

300 hp @ 5800 rpm (approx.)

Torque:

300 lb-ft (407 Nm) @ 1300-5000 rpm (approx.)

Fuel Delivery:

Direct Injection (High Precision Injection - HPI)

Fuel Type:

Premium Unleaded Gasoline (91+ Octane Recommended)

Turbochargers:

Twin-turbocharged (Sequential Twin-Turbo: Smaller turbo for low-end response, larger turbo for high-end power)

Oil Type Capacity:

BMW Longlife-01 SAE 0W-30 Synthetic (approx. 6.5 liters / 6.9 US quarts)

Coolant Type:

BMW Blue Antifreeze/Coolant (Ethylene Glycol based, G48 formulation), 50/50 mix with distilled water

🔧 Transmission

Transmission Type:

Getrag 6-speed Manual Transmission (GS6-53DZ)

Transmission Type:

ZF 6-speed Steptronic Automatic Transmission (6HP19TU for RWD, 6HP26TU for AWD xDrive variants)

Automatic Features:

Steptronic manual shift mode, adaptive shift programs, Sport mode.

Manual Transmission Fluid:

BMW MTF LT-2 or equivalent (e.g., Castrol BOT 341, Pentosin MTF2)

Automatic Transmission Fluid:

ZF Lifeguardfluid 6 (equivalent to BMW Part No. 83 22 0 024 359)

📐 Dimensions

Wheelbase Sedan:

110.6 inches (2800 mm)

Length Sedan:

181.8 inches (4618 mm)

Width Sedan:

69.9 inches (1777 mm)

Height Sedan:

56.7 inches (1441 mm)

Curb Weight Sedan Manual:

3571 lbs (1620 kg)

Curb Weight Sedan Auto:

3660 lbs (1660 kg)

Gross Vehicle Weight Rating:

Approx. 4580 lbs (2077 kg) (Varies by body style and configuration)

Trunk Volume Sedan:

12.0 cubic feet (340 liters)

Standard Wheel Size:

17 inches (Optional 18 and 19 inches)

Standard Tire Size:

225/45R17 (Front), 255/40R17 (Rear, RWD) or 225/45R17 (All Around, xDrive)

Bolt Pattern:

5x120 mm

Center Bore:

72.5 mm

🛡️ Safety Features

NHTSA Front Impact:

5-Star (for relevant sedan and coupe models)

IIHS Top Safety Pick:

Yes (for relevant models, dependent on year and specific testing criteria)

Traction Control:

Dynamic Traction Control (DTC), Dynamic Stability Control (DSC)

Braking:

Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist

Airbags:

Frontal airbags, side-impact airbags, front and rear head protection airbags (curtain airbags).

Seatbelts:

Three-point inertia-reel seatbelts with front seat pretensioners and force limiters.

💡 Technology Features

System Name:

iDrive (CCC or CIC depending on model year and options)

Features:

Navigation system, radio (AM/FM/Satellite), CD player, auxiliary audio input, Bluetooth connectivity (optional), voice control (optional).

Features:

Parking distance sensors (front and rear), Adaptive Headlights (optional), Rain-sensing wipers, Cruise Control.

Bluetooth:

Optional, allowing hands-free calling and audio streaming. Requires pairing via iDrive.

🔧 Maintenance

Oil Change Interval:

Variable, typically indicated by the Condition Based Service (CBS) system. Generally, every 10,000-15,000 miles or annually, whichever comes first. Refer to manual for exact CBS reset procedures.

Brake Fluid Interval:

Every 2 years (regardless of mileage).

Spark Plug Interval:

Typically around 60,000 miles for the N54 engine (using appropriate spark plugs like NGK SILZKFR7B8).

Air Filter Interval:

Inspect every 15,000 miles, replace as needed (typically 30,000 miles).

Cabin Filter Interval:

Inspect every 15,000 miles, replace as needed (typically 15,000-30,000 miles).

Power Steering Fluid:

BMW Power Steering Fluid (Pentosin CHF 11S is a common equivalent for many BMWs, verify for E90 specifically)

Differential Fluid:

BMW SAF-XJ or SAF-XOS (Synthetic Gear Oil) 75W-140

Fuel Injectors:

Early N54 models (pre-2009) are known for injector failure, leading to misfires and rough running. Often requires replacement with updated Bosch injectors.

Turbochargers:

Wastegate rattle and eventual failure of the turbochargers' actuators or seals can occur. Common repair involves turbocharger replacement or actuator repair.

High Pressure Fuel Pump:

The eccentric shaft sensor and the high-pressure fuel pump (HPFP) can fail, causing engine stalling or difficulty starting. Updated HPFP models are available.

Pcv System:

The PCV (Positive Crankcase Ventilation) system, integrated into the valve cover, is prone to cracking, leading to vacuum leaks and rough idle.

Cooling System:

Water pump and thermostat failures are common, often with plastic components degrading over time. Requires replacement with the entire assembly.

📚 Vehicle History

Heritage:

BMW, known for its 'Ultimate Driving Machine' ethos, has a long history of producing sporty and luxurious sedans and coupes. The 3 Series is its most iconic and successful model line, representing the core of the brand's identity.

E90 Generation Introduction:

The E90 generation 3 Series was launched in 2005, with the 335i variant debuting for the 2007 model year, marking BMW's significant re-entry into high-volume turbocharged gasoline engines for its core sedan line.

N54 Engine Development:

The N54 engine was a technological leap for BMW, showcasing their commitment to performance and efficiency through turbocharging and direct injection. It quickly became a benchmark in its class for power output.

Manufacturing Locations:

Primarily produced at BMW's plants in Munich, Germany, and Dingolfing, Germany. Some models may have also been assembled in other international locations depending on market.

🏆 Awards & Recognition

Ward 3 Best Engines:

The N54 engine was a multiple recipient of the prestigious Ward's 10 Best Engines award shortly after its introduction due to its power, efficiency, and refinement.