🏷️ Basic Information

Make:

BMW

Model:

2 Series Convertible

Chassis Code:

E93

Model Years Covered:

2006, 2007, 2008, 2009, 2010

Engine Codes Covered:

N52B30, N54B30

👋 Introduction

Vehicle Class:

Compact Executive Convertible

Target Audience:

Enthusiasts, DIY mechanics, professional repair shops seeking in-depth technical information for the E93 generation convertible.

Competitors:

Audi A4 Cabriolet, Mercedes-Benz CLK Convertible, Lexus IS Convertible.

Vehicle Selling Points:

Retractable hardtop, rear-wheel drive dynamics, premium interior, advanced engine options (naturally aspirated and twin-turbo).

Manual Value Proposition:

Provides factory-level diagnostic and repair procedures, essential for maintaining the complex systems of this luxury convertible.

📋 Manual Details

Manual Type:

Factory Service Repair Manual

Language:

English

Format:

Digital (PDF)

Estimated Page Count:

Approximately 2000+ pages (comprehensive)

📖 Manual Coverage

Engine Mechanical:

Engine assembly, disassembly, cylinder head, crankshaft, pistons, connecting rods, timing systems, lubrication system, cooling system.

Engine Management:

Fuel injection, ignition system, emission control, engine sensors (DME - Digital Motor Electronics), diagnostic trouble codes (DTCs).

Transmission Manual:

Clutch, gearbox internal components, shifting mechanisms, overhaul procedures.

Transmission Automatic:

Automatic transmission assembly, valve body, torque converter, hydraulic control, electronic control unit (TCU - Transmission Control Unit), fluid specifications and changes.

Drivetrain:

Driveshafts, differential, axles, wheel bearings, limited-slip differential (if applicable).

Suspension:

Front suspension (struts, control arms, sway bar), rear suspension (multi-link, subframe), shock absorbers, springs, bushings.

Steering:

Power steering system (hydraulic), steering rack, steering column, alignment specifications.

Brakes:

Brake system hydraulics, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake discs, pads, calipers, parking brake, bleeding procedures, wear limits.

Electrical System Basic:

Battery, alternator, starter motor, wiring diagrams, fuses, relays, lighting system.

Body Exterior:

Body panels, doors, hood, trunk lid, convertible top mechanism, bumpers, glass replacement.

Body Interior:

Seats, dashboard, trim panels, airbags, seat belts, interior lighting.

Convertible Top:

Hydraulic pump, actuators, motors, sensors, control module, troubleshooting and repair of the retractable hardtop mechanism.

Climate Control:

HVAC system, air conditioning, heating, blower motor, refrigerant recharge, climate control module.

Infotainment And Electronics:

iDrive system (CCC/CIC), radio, navigation, speakers, telematics, central information display (CID).

Preventive Maintenance:

Scheduled maintenance tasks, fluid level checks, filter replacements, belt inspections.

Troubleshooting:

Diagnostic procedures for common and uncommon issues, symptom-based troubleshooting guides, diagnostic trouble code (DTC) interpretation.

Repair Procedures:

Step-by-step instructions for component removal, installation, and repair across all covered systems.

Overhaul Instructions:

Detailed procedures for rebuilding major components like engines and transmissions.

Diagnostic Testing:

Procedures for using diagnostic tools, testing electrical circuits, and verifying component operation.

Special Tools:

Identification and usage instructions for specialized BMW tools required for specific repairs.

Depth Level:

Comprehensive (from basic maintenance to full engine and transmission rebuilds).

Diagnostic Capability:

Detailed diagnostic information including wiring diagrams, sensor data interpretation, and troubleshooting trees.

📊 Manual Specifications

Document Type:

PDF

Searchability:

Fully searchable text content for quick information retrieval.

Printability:

Printable pages for in-hand reference.

Image Resolution:

High-resolution diagrams, illustrations, and photographs.

Binding:

N/A (Digital Format)

Paper Quality:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Option 1:

BMW 328i Convertible (E93)

Engine Code 1:

N52B30

Engine Type 1:

3.0L Inline 6-cylinder Naturally Aspirated

Displacement 1:

2996 cc (3.0 Liters)

Bore X Stroke 1:

85.0 mm x 88.0 mm

Compression Ratio 1:

10.7:1

Horsepower 1:

230 hp @ 6500 rpm

Torque 1:

214 lb-ft @ 2750 rpm

Fuel System 1:

Sequential Electronic Fuel Injection (SEFI)

Engine Management 1:

Bosch Motronic (DME)

Engine Option 2:

BMW 335i Convertible (E93)

Engine Code 2:

N54B30

Engine Type 2:

3.0L Inline 6-cylinder Twin-Turbocharged

Displacement 2:

2979 cc (3.0 Liters)

Bore X Stroke 2:

84.0 mm x 89.6 mm

Compression Ratio 2:

10.2:1

Horsepower 2:

300 hp @ 5800 rpm

Torque 2:

300 lb-ft @ 1300-5000 rpm

Fuel System 2:

High-Pressure Direct Injection (HPDI), Twin-Turbocharged

Engine Management 2:

Bosch Motronic (DME)

🔧 Transmission

Transmission Option 1:

6-speed Manual Transmission (GS6-37BZ)

Transmission Option 2:

6-speed Steptronic Automatic Transmission (GA6HP19Z)

Automatic Features:

Adaptive Shift Control (ASC), Sport Mode, Manual Shift Mode (via paddle shifters or gear selector).

Manual Transmission Fluid:

BMW MTF LT-3 (Pentosin FFL-3 or equivalent)

Automatic Transmission Fluid:

BMW ATF LT-5 (Pentosin ATF 1 or equivalent)

Manual Transmission Capacity:

Approx. 1.7 - 1.9 Liters

Automatic Transmission Capacity:

Approx. 8.0 Liters (total capacity, pan fill approx. 4.5 Liters)

📐 Dimensions

Length:

178.2 inches (4527 mm)

Width:

71.5 inches (1815 mm)

Height:

55.2 inches (1402 mm)

Wheelbase:

108.7 inches (2760 mm)

Front Track:

60.3 inches (1532 mm)

Rear Track:

61.0 inches (1550 mm)

Curb Weight 328I:

Approx. 3913 lbs (1775 kg)

Curb Weight 335I:

Approx. 4023 lbs (1825 kg)

Towing Capacity:

Not Recommended (as per manufacturer)

Trunk Volume Top Up:

13.1 cubic feet (370 Liters)

Trunk Volume Top Down:

8.5 cubic feet (240 Liters)

🛡️ Safety Features

NHTSA Overall:

Not explicitly rated for convertible variants in this generation by NHTSA, but based on coupe variants, generally good frontal and side impact performance.

Standard Active Safety:

Dynamic Stability Control (DSC), Dynamic Traction Control (DTC), Anti-lock Braking System (ABS), Electronic Brake Force Distribution (EBD), Brake Assist.

Standard Passive Safety:

Front airbags, front side-impact airbags, rollover protection system (automatically deploying hoops), front seat belt pretensioners, advanced crumple zones.

Convertible Specific Safety:

Reinforced A-pillars and windshield frame, integrated rollover protection system (steel hoops deploying from behind rear headrests).

💡 Technology Features

Infotainment System:

BMW iDrive (CCC or CIC depending on production date and options), typically featuring a 7-inch or 8.8-inch central display.

Audio Options:

Standard Hi-Fi system, optional Logic7 premium audio system.

Navigation:

Optional BMW Professional Navigation system.

Driver Assistance Features:

Park Distance Control (PDC), Adaptive Headlights (optional), Rain Sensor, Cruise Control.

Connectivity Options:

Bluetooth phone integration, USB audio interface (later models), SiriusXM Satellite Radio ready.

Keyless Entry:

Comfort Access System (keyless entry and start) available on higher trims/optional.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000-15,000 miles or 12-24 months, depending on driving conditions and oil quality, as indicated by the vehicle's Condition Based Service (CBS) system.

Engine Air Filter:

Replace every 30,000 - 50,000 miles or as indicated by CBS.

Cabin Air Filter:

Replace every 15,000 - 30,000 miles or annually, as indicated by CBS.

Spark Plugs N52:

Replace at 100,000 miles (original plugs), or sooner based on performance and condition.

Spark Plugs N54:

Replace at 45,000 - 60,000 miles (due to direct injection and turbocharging).

Brake Fluid Flush:

Every 2 years, regardless of mileage.

Coolant Flush:

First replacement at 5 years or 100,000 miles, then every 2-4 years or 30,000-50,000 miles thereafter (BMW Blue coolant).

Engine Oil Spec:

BMW Longlife-01 (LL-01) or BMW Longlife-01 FE (LL-01 FE) approved synthetic oil, typically 0W-30 or 5W-30.

Engine Oil Capacity N52:

Approx. 6.5 Liters (6.9 US Quarts)

Engine Oil Capacity N54:

Approx. 6.5 Liters (6.9 US Quarts)

Coolant Type:

BMW Blue Antifreeze/Coolant

Common Issues N54:

High-pressure fuel pump (HPFP) failure, vacuum leaks, injector issues, ignition coil failures, turbo wastegate rattle.

Common Issues N52:

Valve cover gasket leaks, oil pan gasket leaks, eccentric shaft sensor failure, VANOS solenoid issues.

Convertible Top Issues:

Hydraulic leaks in the top system, pump failure, sensor malfunctions, issues with the trunk lid mechanism.

Electrical Issues:

Water ingress in the trunk (especially for convertibles), prone to various electrical gremlins if not properly diagnosed.

📚 Vehicle History

Bmw Legacy:

BMW's long-standing reputation for performance, luxury, and engineering excellence, particularly in the sport sedan and coupe market.

E93 Introduction:

The E93 is the fourth generation of the BMW 3 Series convertible, introduced in 2006. It marked a significant shift from the previous generation's soft-top to a three-piece retractable hardtop, offering coupe-like refinement when the roof was up.

Platform Basis:

Based on the E92 coupe platform, sharing many mechanical and structural components.

Production Period:

2006 - 2013 (covering the 2006-2010 model years in this manual's scope)

Manufacturing Locations:

Primarily Germany (e.g., Dingolfing Plant).

🏆 Awards & Recognition

Ward Auto 10 Best Engines:

The N54 twin-turbocharged inline-6 engine was a recipient of the prestigious Ward's 10 Best Engines award for 2007 and 2008, recognized for its power, efficiency, and refinement.

Consumer Reports Ratings:

Consumer Reports generally rated the 3 Series convertible (E93) well for driving dynamics and interior quality, though reliability perceptions varied, particularly with the N54 engine.

Certification Standards:

Manufactured to meet all applicable global automotive safety and emissions standards for the model years covered.