🏷️ Basic Information

Make:

BMW

Model:

645Ci

Year:

2005

Body Style:

2-door Coupe

Chassis Code:

E63

👋 Introduction

Positioning:

The BMW 645Ci (E63) was positioned as a luxury grand tourer, blending performance, comfort, and advanced technology, targeting affluent buyers seeking a sophisticated coupe experience.

Competitors:

Competed with vehicles like the Mercedes-Benz CL-Class, Jaguar XK, and Porsche 911 (though the 911 is a sports car, it occupied a similar price/performance segment for some buyers).

Defining Characteristics:

Powerful V8 engine, sleek styling, luxurious interior, advanced iDrive infotainment system, optional Adaptive Drive suspension system.

📋 Manual Details

Primary Coverage:

2005 BMW 645Ci 2-door Coupe (E63 Chassis)

Engine Coverage:

4.4L V8 (N62B44)

Transmission Coverage:

6-speed Steptronic Automatic Transmission

Estimated Page Count:

Approximately 300-400 pages

Type:

Owner's Manual

Language:

English

Format:

Printed Booklet

📖 Manual Coverage

Powertrain:

Engine (N62B44 V8), lubrication, cooling, fuel delivery, ignition, exhaust.

Drivetrain:

Automatic transmission (Steptronic), differentials, drive shafts.

Chassis And Suspension:

Steering, suspension components (adaptive drive), brakes (ABS, DSC), wheel and tire information.

Electrical And Electronics:

Battery, lighting, instrument cluster, onboard computer, iDrive system, climate control, power accessories.

Body And Interior:

Doors, windows, seats, safety restraints, interior trim, convertible top operation (if applicable, though this is a coupe).

Basic Operations:

Starting and driving, parking, fuel filling, checking fluids, operating controls.

Maintenance Tasks:

Tire pressure checks, fluid level checks, bulb replacement, windshield wiper replacement.

Troubleshooting Guidance:

Warning lights and indicators, basic system malfunctions.

Safety Features Operation:

Seat belt usage, airbag system explanations, child seat installation guidance.

Depth:

Comprehensive overview for the owner. Focuses on operation, maintenance, and basic troubleshooting. Does not cover in-depth mechanical repair or diagnostic procedures typically found in a service manual.

📊 Manual Specifications

Digital Format Options:

Typically available as a PDF for digital download or as a physical printed copy.

Print Quality:

High-quality printing with clear text and diagrams, matching OEM standards.

Binding:

Stapled or perfect bound, designed for durability in automotive environments.

Paper Quality:

Durable, semi-gloss paper stock to resist wear and tear.

⚙️ Engine Specifications

Engine Code:

N62B44

Engine Type:

4.4-liter naturally aspirated V8

Aspiration:

Naturally Aspirated

Valvetrain:

DOHC, 4 valves per cylinder, VANOS (variable valve timing), Valvetronic (variable valve lift)

Horsepower:

325 hp @ 6100 rpm

Torque:

330 lb-ft @ 3600 rpm

Fuel Delivery:

Electronic fuel injection (Bosch Motronic ME9.0)

Fuel Type:

Premium Unleaded (91+ Octane)

Engine Oil Capacity:

Approx. 8.5 liters (8.9 US quarts)

🔧 Transmission

Transmission Type:

6-speed Steptronic Automatic Transmission

Optional Transmission:

None for the 645Ci in 2005 (a 6-speed manual was available in other markets or later models/trims).

Steptronic Operation:

Driver-selectable manual gear shifting via selector lever or steering wheel paddle shifters.

Transmission Fluid Type:

BMW LT-3 (or equivalent ATF specified by BMW)

Transmission Fluid Capacity:

Approximately 9.0 liters (9.5 US quarts) for a complete fill, though often serviced in smaller quantities.

📐 Dimensions

Length:

4817 mm (189.6 inches)

Width:

1854 mm (73.0 inches)

Height:

1373 mm (54.1 inches)

Wheelbase:

2781 mm (109.5 inches)

Front Headroom:

Approx. 980 mm (38.6 inches)

Front Legroom:

Approx. 1050 mm (41.3 inches)

Trunk Volume:

450 liters (15.9 cubic feet)

Curb Weight:

Approx. 1770 kg (3893 lbs)

Gross Vehicle Weight Rating:

Approx. 2230 kg (4916 lbs)

🛡️ Safety Features

NHTSA Front Impact Rating:

Not explicitly rated by NHTSA for this specific model year, but typically high for BMW vehicles of this era.

IIHS Crash Test Results:

Good in frontal offset and side impact tests (based on similar E63/E64 models).

Dynamic Stability Control:

Standard DSC (Dynamic Stability Control)

Anti Lock Braking System:

Standard ABS (Anti-lock Braking System)

Traction Control:

Standard DTC (Dynamic Traction Control)

Adaptive Drive:

Optional, combines Active Roll Stabilization (ARS) and Dynamic Drive Control (DDC).

Airbags:

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

Seat Belts:

Three-point inertia-reel seat belts with pretensioners and force limiters for all seating positions.

💡 Technology Features

I Drive System:

BMW's iDrive infotainment system with a central control knob, 7-inch LCD screen, radio, CD player, and optional navigation, Bluetooth, and enhanced connectivity.

Audio System:

Standard Hi-Fi sound system, optional Logic 7 premium audio system.

Parking Assistance:

Optional Park Distance Control (PDC) - front and rear.

Cruise Control:

Standard cruise control, optional Active Cruise Control (ACC) with stop-and-go functionality.

Bluetooth:

Optional Bluetooth hands-free interface with compatible mobile phones.

Usb Auxiliary Input:

Not standard on all models; often integrated with optional multimedia packages.

🔧 Maintenance

Oil Change Interval:

Typically indicated by the Condition Based Service (CBS) system, often around 10,000-15,000 miles or 12-24 months, depending on driving conditions.

Major Service Intervals:

Spark plugs typically at 60,000-100,000 miles. Coolant flush and transmission fluid change recommended at intervals suggested by CBS or manufacturer (e.g., 50,000-100,000 miles).

Coolant Type:

BMW Blue Antifreeze/Coolant (G48) or equivalent silicate-free ethylene glycol coolant.

Brake Fluid Type:

DOT 4, or BMW Super DOT 4.

Power Steering Fluid:

Pentosin CHF 11S or BMW approved alternative.

Common Wear Items:

Valve stem seals (oil consumption), ignition coils, VANOS solenoids, coolant expansion tank/hoses, electronic water pump.

Common Electrical Issues:

iDrive system glitches, battery issues (due to high electrical draw), ABS/DSC sensor failures.

Common Suspension Issues:

Front control arm bushings, Active Drive components (if equipped) can be costly to repair.

📚 Vehicle History

Bmw Heritage:

Bayerische Motoren Werke AG (BMW) is a German luxury and premium performance vehicle manufacturer with a long history dating back to 1916, known for its 'Ultimate Driving Machine' philosophy.

E63 Generation Introduction:

The E63 generation of the 6 Series was introduced in 2003 as a successor to the E24 and replaced the E64 Convertible in 2004. The 645Ci was a prominent model in this generation.

Engine Transition:

The N62 V8 engine was a departure from previous V8s, featuring Valvetronic and Double VANOS for improved efficiency and responsiveness.

Production Location:

Dingolfing, Germany

Production Years E63:

2003-2010 (645Ci model primarily 2003-2005, succeeded by 650i).

🏆 Awards & Recognition

Automotive Press Awards:

While specific awards for the 2005 645Ci might be limited, the E63 generation generally received positive reviews for its styling and performance from automotive journalists.

Owner Satisfaction Trends:

Owner satisfaction tends to be high for the driving experience and luxury, though maintenance costs and reliability are noted concerns common to high-performance European vehicles.