2004 BMW 3 Series Convertible Owners Manual

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🏷️ Basic Information Identification Make: BMW Model: 3 Series Convertible Year: 2004 Chassis Code: E46 Body Style: Convertible 👋 Introduction Market Position Segment: Premium Compact/Mid-size Sports Sedan/Coupe/Convertible segment Brand Perception:...

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Description

🏷️ Basic Information

Identification

Make:

Model:

3 Series Convertible

Year:

Chassis Code:

Body Style:

Convertible

👋 Introduction

Market Position

Segment:

Premium Compact/Mid-size Sports Sedan/Coupe/Convertible segment

Brand Perception:

Synonymous with driving dynamics, luxury, and performance.

Competitive Analysis

Key Rivals:

Audi A4 Cabriolet, Mercedes-Benz CLK Convertible, Lexus IS Convertible (later generations), Infiniti G35 Convertible.

Key Features

Driving Dynamics:

Renowned for its balanced chassis, rear-wheel-drive bias, and engaging steering.

Convertible Experience:

Offers a refined open-air driving experience with a well-insulated cabin and a smooth power-operated soft top.

Build Quality:

Typical BMW high standards in materials and assembly.

📋 Manual Details

Coverage

Manual Type:

Owner's Manual

Language:

English

Format:

Digital PDF (Instant Download)

Source:

Original BMW Factory Owners Manual

Page Count:

Estimated 150-200 pages (typical for E46 generation owner's manuals)

📖 Manual Coverage

Systems Covered

Engine:

Operation, recommended fuel, break-in period, basic checks

Transmission:

Operation (automatic/manual), gear selection, fluid considerations

Brakes:

Brake system overview, parking brake, ABS operation

Electrical System:

Lighting operation, battery, fuses, power windows, central locking

Convertible Top:

Operation, care, maintenance of the power convertible top mechanism

Climate Control:

HVAC system operation, climate control settings, recirculation

Infotainment:

Radio operation, CD player, navigation system (if equipped), speaker layout

Safety Features:

Airbags, seatbelt operation, child seat installation (LATCH/ISOFIX), traction control (ASC+T)

Procedures Included

Daily Checks:

Checking fluid levels (oil, coolant, washer fluid), tire pressure, lights

Instrument Cluster:

Understanding warning lights, gauges, and information displays

Refueling:

Fuel type recommendations, fuel filler flap operation

Tire Changes:

Jack points, spare tire location, lug nut torque specifications

Wiper Blade Replacement:

Instructions for replacing front and rear wiper blades

Bulb Replacement:

Basic guidance on replacing exterior and interior bulbs (may vary in complexity)

Convertible Top Care:

Cleaning and conditioning the fabric top, proper storage

Parking:

Parking brake usage, parking on inclines

Emergency Procedures:

Jump starting, changing a flat tire, what to do in case of an accident

Technical Depth

Level:

Owner-focused, covering operation, basic checks, and essential maintenance. Does not include in-depth diagnostic procedures or repair instructions typically found in a service manual.

📊 Manual Specifications

File Attributes

File Format:

Print Quality:

High-resolution, derived from original factory scans, suitable for printing.

Searchability:

Text-searchable PDF for easy information retrieval.

Binding Type

Applicable:

Not applicable for digital download.

Paper Type

Applicable:

Not applicable for digital download.

⚙️ Engine Specifications

Primary Engine Options

Engine Variants:

Commonly featured 2.5L Inline-6 (M54B25) and 3.0L Inline-6 (M54B30) engines.

Performance 30I

Displacement 30I:

2.979 cc (3.0 Liters)

Horsepower 30I:

225 hp @ 6000 rpm (approx.)

Torque 30I:

214 lb-ft @ 3500 rpm (approx.)

Performance 25I

Displacement 25I:

2.494 cc (2.5 Liters)

Horsepower 25I:

184 hp @ 6000 rpm (approx.)

Torque 25I:

175 lb-ft @ 3500 rpm (approx.)

Fuel System

Injection Type:

Multi-point fuel injection (Bosch Motronic)

Engine Management

Ignition:

Distributorless ignition (DIS) with individual coil packs

Coolant

Coolant Type:

BMW Blue Antifreeze/Coolant (G48 or equivalent)

🔧 Transmission

Standard Transmission

Type:

5-speed Manual Transmission (Getrag GS5-39DZ on some models)

Optional Transmission

Type:

5-speed Steptronic Automatic Transmission (GM A5S390R or similar)

Features

Steptronic:

Allows manual gear selection via shifter or steering wheel paddles (optional).

Fluid Spec Auto

Fluid Type:

Dexron III or Dexron VI (check specific model/transmission)

Fluid Spec Manual

Fluid Type:

BMW MTF LT-1 or MTF LT-2 (Manual Transmission Fluid)

📐 Dimensions

Exterior

Length:

Approx. 172.2 inches (4374 mm)

Width:

Approx. 68.3 inches (1735 mm)

Height:

Approx. 53.6 inches (1362 mm)

Wheelbase:

Approx. 103.2 inches (2620 mm)

Interior

Seating Capacity:

Cargo

Trunk Volume Top Up:

Approx. 13.1 cu ft (370 L)

Trunk Volume Top Down:

Approx. 8.1 cu ft (229 L)

Weights

Curb Weight Manual:

Approx. 3500-3700 lbs (1588-1678 kg)

Curb Weight Auto:

Approx. 3550-3750 lbs (1610-1701 kg)

🛡️ Safety Features

Ratings

NHTSA Front Impact:

Likely 4 or 5 stars (typical for BMW of this era, but specific convertible ratings can vary)

IIHS Side Impact:

Likely Good (typical for BMW of this era, but specific convertible ratings can vary)

Active Features

Standard Anti-lock Braking System

Traction Control:

Standard Automatic Stability Control + Traction (ASC+T)

Stability Control:

Dynamic Stability Control (DSC) often optional or standard on higher trims.

Passive Features

Airbags:

Front airbags, side-impact airbags in doors, often rollover protection system (pop-up roll bars)

Seatbelts:

Three-point inertia-reel seatbelts with pretensioners

Child Restraint

Latch Isofix:

ISOFIX mounting points for child seats (may require specific adapters)

💡 Technology Features

Infotainment

Head Unit:

BMW Business CD or Professional RDS radio with CD player, often with cassette functionality.

Navigation:

Optional MKIV Navigation system with CD-ROM maps.

Audio System:

Standard 6-speaker system, optional Harman Kardon premium sound system.

Driver Assistance

Parking Sensors:

Optional Park Distance Control (PDC).

Cruise Control:

Standard cruise control.

Connectivity

Bluetooth:

Optional Bluetooth phone integration (via adapter or built-in module).

Climate Control

Automatic Climate Control:

Optional dual-zone automatic climate control.

🔧 Maintenance

Service Intervals Oil

Oil Change:

Typically every 7,500-15,000 miles or as indicated by the Condition Based Service (CBS) system, using BMW Longlife-01 approved synthetic oil.

Oil Filter Part Number:

BMW 11 42 7 541 827 (may vary based on exact engine, check compatibility)

Service Intervals Coolant

Coolant Flush:

Recommended every 2-4 years or as per CBS.

Fluid Specifications Brake

Brake Fluid Type:

DOT 4 (BMW High Performance Brake Fluid)

Fluid Specifications Power Steering

Power Steering Fluid Type:

BMW ATF Dexron III or equivalent

Known Issues

Cooling System:

Plastic coolant expansion tanks are prone to cracking; water pump and thermostat housing can also leak.

Oil Leaks:

Valve cover gasket, oil pan gasket, and oil filter housing gasket are common leak points.

Suspension:

Front control arm bushings (bushings themselves and/or the entire arm) can wear, leading to steering looseness and tire wear.

Convertible Top Mechanism:

Hydraulic cylinders for the top can leak; microswitches and motors can fail.

Window Regulators:

Window regulators can fail, causing windows to drop or operate slowly.

📚 Vehicle History

Brand Heritage

Legacy:

BMW has a long history of producing sporty, driver-focused vehicles, particularly with its '3 Series' line, known for its blend of performance and luxury.

Model Evolution

E46 Generation:

The E46 generation (1999-2006) represented a significant evolution in BMW's design and engineering, offering improved dynamics, technology, and refinement over its E36 predecessor.

Convertible Development:

The E46 convertible continued the tradition of offering a stylish and engaging open-top experience, building on the strengths of the coupe platform.

Production

Manufacturing Locations:

Primarily manufactured in Germany (e.g., Dingolfing plant).

🏆 Awards & Recognition

Recognitions

Car And Driver 10 Best:

BMW 3 Series variants (sedan, coupe) were frequent recipients of Car and Driver's 10Best awards during this era, highlighting its overall excellence.

Ratings

Consumer Reports:

Typically rated well for performance and driving experience, though reliability scores could be mixed depending on specific components and maintenance history.