2004 BMW 745I Service & Repair Manual Software

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🏷️ Basic Information Identification Make: BMW Model: 745i Year: 2004 Codes Chassis Code: E66 Engine Code Typical: N62B44 👋 Introduction Market Position Segment: Full-size Luxury Sedan Target Audience: Luxury car...

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Description

🏷️ Basic Information

Identification

Make:

Model:

Year:

Codes

Chassis Code:

Engine Code Typical:

N62B44

👋 Introduction

Market Position

Segment:

Full-size Luxury Sedan

Target Audience:

Luxury car owners seeking to maintain or repair their 2004 BMW 745i, independent repair shops, BMW enthusiasts.

Competitive Analysis

Competitors:

Mercedes-Benz S-Class (W220), Audi A8 (D3), Lexus LS (XF30), Jaguar XJ (X350).

Key Features Vehicle

Features:

Advanced iDrive infotainment system, sophisticated suspension, powerful V8 engine, luxurious interior appointments, optional xDrive all-wheel drive.

Key Features Manual

Benefits:

Provides official, accurate technical data, covers complex systems often poorly documented in generic manuals, enables cost-effective DIY repairs.

📋 Manual Details

Coverage Areas

Coverage Scope:

Comprehensive Service and Repair

Page Count

Estimated Pages:

1000+

Manual Type

Type:

Digital Service Manual Software

Language

Language:

English

Format

Format:

Software (likely PDF or proprietary digital format)

📖 Manual Coverage

Systems Covered

Engine:

All aspects of the N62 V8 engine, including diagnostics, repair, overhaul, timing system, cooling, lubrication, fuel injection, ignition.

Transmission:

GM 6L45/6L40 automatic transmission, including diagnostics, overhaul, fluid services, electronic controls.

Drivetrain:

All-wheel drive (xDrive) system, differentials, driveshafts, CV joints.

Suspension:

Front and rear suspension components, active damping systems (EDC), air suspension, alignment specifications.

Brakes:

Hydraulic brake system, ABS, DSC (Dynamic Stability Control), brake pad/rotor replacement, brake bleeding procedures, parking brake.

Steering:

Hydraulic power steering system, steering rack, power steering fluid specifications.

Electrical:

Complete electrical system, including wiring diagrams, fuse box layouts, lighting, power windows, mirrors, seats, starter, alternator.

Body:

Body panels, doors, hood, trunk, bumpers, trim, glass, sunroof operation.

HVAC:

Climate control system, refrigerant R134a, compressor, condenser, evaporator, blower motor, diagnostic procedures.

Interior:

Interior trim removal and installation, seats, dashboard, headliner, airbags.

Infotainment:

iDrive system, audio components, navigation system, instrument cluster.

Procedures Included

Maintenance:

Oil change intervals and procedures, filter replacements (oil, air, cabin), spark plug replacement, coolant flush, brake fluid flush.

Diagnostics:

Troubleshooting guides, diagnostic trouble codes (DTCs) interpretation, use of BMW diagnostic tools (e.g., DIS, ISTA/D).

Repair:

Detailed step-by-step repair instructions for all major systems, component replacement, assembly/disassembly procedures.

Installation:

Procedures for installing common replacement parts and accessories.

Calibration:

Calibration procedures for electronic systems, sensors, and actuators.

Technical Depth

Depth:

Expert-level, covering complete overhauls, advanced diagnostics, and detailed electronic system analysis.

📊 Manual Specifications

File Format

Compatibility:

Compatible with most modern operating systems (Windows, macOS) via PDF reader or specific software viewer.

Print Quality

Printability:

High-resolution, printable pages for workshop use.

Binding Type

Binding:

N/A (Digital)

Paper Type

Paper Type:

N/A (Digital)

⚙️ Engine Specifications

Primary Engine

Engine Type:

Naturally Aspirated V8

Engine Code:

N62B44

Displacement:

4.4 Liters (4398 cc)

Bore X Stroke:

92.0 mm x 82.7 mm

Compression Ratio:

10.0:1

Valvetrain:

DOHC, 4 valves per cylinder, VANOS (Variable Valve Timing)

Performance

Horsepower Hp:

329 hp @ 6100 RPM

Torque Lb Ft:

330 lb-ft @ 3600 RPM

Fuel System

Fuel Delivery:

Sequential Electronic Fuel Injection (SEFI)

Fuel Type:

Premium Unleaded Gasoline (91+ Octane)

Cooling System

Coolant Type:

BMW Blue Antifreeze/Coolant (G48 ethylene glycol-based)

Lubrication System

Oil Type:

SAE 0W-30 or 0W-40 Synthetic (BMW LL-01 approved)

Oil Capacity Quarts:

8.5 US quarts (8.0 Liters)

🔧 Transmission

Standard

Transmission Type:

6-speed Automatic (GM 6L45)

Optional

All Wheel Drive:

Optional xDrive AWD System

Features

Transmission Modes:

Steptronic manual shifting mode, Adaptive Transmission Control (ATC).

Fluid Specs

Automatic Transmission Fluid:

Dexron VI or approved equivalent

Fluid Capacity Quarts

Automatic Transmission Fluid Capacity:

Approx. 10 US quarts (9.5 Liters) - may vary based on torque converter fill

📐 Dimensions

Exterior

Wheelbase Inches:

116.4 inches

Length Inches:

199.7 inches

Width Inches:

73.5 inches

Height Inches:

58.2 inches

Weights

Curb Weight Lbs:

4233 - 4409 lbs (depending on configuration)

Gross Vehicle Weight Rating Gvwr Lbs:

5512 lbs (typical)

Towing Capacity Lbs:

Not Recommended/Not Specified

Payload Capacity Lbs:

Approx. 1279 lbs

🛡️ Safety Features

Ratings

NHTSA Front Impact Driver:

5 Stars

NHTSA Front Impact Passenger:

5 Stars

NHTSA Side Impact Front Seat:

5 Stars

NHTSA Side Impact Rear Seat:

5 Stars

IIHS Front Crash:

IIHS Side Impact:

Active Features

Traction Control:

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

Brakes:

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

Passive Features

Airbags:

Frontal airbags, front side-impact airbags, head protection system (HPS) curtain airbags for front and rear occupants.

Seatbelts:

Pretensioning front seatbelts, rear seatbelt reminders.

💡 Technology Features

Infotainment

System Name:

iDrive (CCC - Car Communication Computer)

Display Size:

8.8-inch central display

Features:

Navigation system, radio, CD player, climate control integration, vehicle settings, Bluetooth (optional).

Driver Assistance

Features:

Adaptive Cruise Control (ACC), Park Distance Control (PDC), Rain-sensing wipers, Automatic headlights.

Connectivity

Features:

Onboard computer, optional Bluetooth hands-free system.

🔧 Maintenance

Service Intervals

Oil Change Interval Miles:

Typically 10,000-15,000 miles or 12-24 months, based on BMW Condition Based Service (CBS) system.

Air Filter Replacement:

Every 30,000 miles or as per CBS indicator.

Cabin Filter Replacement:

Every 15,000-30,000 miles or annually, depending on driving conditions.

Spark Plug Replacement:

Every 60,000 miles (Long-life spark plugs, e.g., NGK BKR6EQUP).

Brake Fluid Flush:

Every 2 years, regardless of mileage.

Coolant Flush:

Every 4-5 years or 50,000-75,000 miles (depending on coolant type and condition).

Fluid Specifications

Power Steering Fluid:

Pentosin CHF 11S or BMW approved equivalent.

Brake Fluid Type:

DOT 4 LV (Low Viscosity)

Known Issues

Common Problems Engine:

Valve stem seals (oil consumption), coolant expansion tank leaks, VANOS solenoid issues, ignition coil failures, oil pan gasket leaks, eccentric shaft sensor failures.

Common Problems Electrical:

CCC (Car Communication Computer) module failures (iDrive system), LCM (Light Module Control) issues, battery drain due to modules not sleeping, alternator failures.

Common Problems Suspension:

Air suspension compressor failures, air strut leaks, Active Roll Stabilization (ARS) hydraulic leaks.

Common Problems Transmission:

Mechatronic sleeve seal leaks, torque converter issues, transmission control module (TCM) problems.

📚 Vehicle History

Brand Heritage

Heritage:

BMW (Bayerische Motoren Werke AG) is a German luxury vehicle manufacturer, renowned for its performance-oriented vehicles and engineering excellence.

Model Evolution

Generation:

E65/E66 (Fourth Generation 7 Series)

Introduction Year:

2001 (for E65/E66 generation)

Key Changes For 2004:

Introduction of the 745i model, replacing the 740i and 750i from the previous generation, featuring the new N62 V8 engine. Minor updates to iDrive and feature packaging.

Production

Production Location:

Dingolfing, Germany

Production Years For Model:

2002-2005 (as 745i, replaced by 750i in 2006)

🏆 Awards & Recognition

Recognitions

Ward S Auto:

Ward's 10 Best Engines - N62 V8 engine recognized for its performance and technology.

Ratings

Consumer Reports:

Mixed reviews historically, often cited for reliability concerns but praised for luxury and driving dynamics.

Certifications

Emissions Standards:

Meets or exceeds EPA and CARB emissions standards for its model year.