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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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🏷️ 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 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:
Good
IIHS Side Impact:
Good
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.