🏷️ Basic Information

Make:

BMW

Model:

740iL

Model Code:

E38

Year:

1998

Generation Name:

Fourth Generation (E38)

Vin Code:

WBAB***

👋 Introduction

Market Position:

The 1998 BMW 740iL represented the pinnacle of German luxury and engineering in its era, competing directly with flagship sedans from Mercedes-Benz (S-Class), Audi (A8), and Lexus (LS).

Competitive Analysis:

The E38 7 Series offered a blend of potent V8 performance, refined ride quality, and advanced (for the time) technology. Its longer wheelbase 'iL' variant provided superior rear-seat legroom, targeting executives and those prioritizing passenger comfort.

Key Features:

Iconic 'Bangle-free' design, potent V8 engine, luxurious interior appointments, advanced safety features, and BMW's renowned driving dynamics. The 'iL' designation signifies the long-wheelbase version.

📋 Manual Details

Coverage Areas:

Complete service, repair, maintenance, diagnostics, troubleshooting, wiring diagrams, specifications, and procedures for the 1998 BMW 740iL.

Page Count:

Est. 1000+ pages (Software)

Manual Type:

Official Service & Repair Manual Software

Language:

English

Format:

Digital Software (Likely PDF or proprietary executable)

📖 Manual Coverage

Systems Covered:

Engine (M62B44), Drivetrain, Transmission (GM 5L40-E), Suspension, Steering, Brakes (ABS, DSC), Electrical System (incl. EML, DME, ABS/ASC, SRS), Climate Control, Bodywork, Interior Systems, Diagnostic Trouble Codes (DTCs).

Procedures Included:

Scheduled Maintenance, Routine Inspections, Engine Overhaul, Transmission Service & Rebuild, Brake System Repair, Suspension Component Replacement, Steering System Diagnosis, Electrical System Troubleshooting, Wiring Diagram Interpretation, Diagnostic Procedures, Component Testing, Removal & Installation of all major assemblies.

Technical Depth:

Comprehensive, covering everything from basic fluid changes and filter replacements to in-depth engine and transmission diagnostics, electronic control unit (ECU) troubleshooting, and body panel repair. Includes detailed torque specifications and alignment procedures.

📊 Manual Specifications

File Format:

Digital Software (Format specific to the licensed provider, likely searchable and bookmarkable)

Print Quality:

N/A (Digital Format)

Binding Type:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Code:

M62B44

Engine Type:

Naturally Aspirated V8

Engine Displacement:

4.4 Liters (4398 cc)

Bore X Stroke:

94.0 mm x 79.2 mm

Compression Ratio:

10.0:1

Valvetrain:

DOHC, 4 valves per cylinder (32 total)

Horsepower Hp:

282 hp @ 5400 rpm

Torque Lb Ft:

317 lb-ft @ 3600 rpm

Fuel Delivery:

Bosch Motronic M5.2 Engine Management System with Multi-point Fuel Injection

Recommended Fuel:

Premium Unleaded Gasoline (91+ Octane)

Engine Oil Capacity:

8.5 Liters (9.0 Quarts) with filter

Coolant Capacity:

11.5 Liters (12.1 Quarts)

🔧 Transmission

Transmission Type:

5-Speed Automatic

Transmission Model:

GM 5L40-E

Optional Transmission:

N/A (Only automatic offered for 740iL in this year)

Transmission Features:

Adaptive Shift control, Steptronic manual shifting capability.

Transmission Fluid Type:

BMW ATF JWS 3309 (or equivalent Dexron III/Mercon)

Transmission Fluid Capacity:

8.3 Liters (8.8 Quarts) (Dry Fill)

📐 Dimensions

Wheelbase:

3.125 meters (123.0 inches)

Length:

5.114 meters (201.3 inches)

Width:

1.862 meters (73.3 inches)

Height:

1.418 meters (55.8 inches)

Front Headroom:

39.3 inches

Rear Headroom:

38.5 inches

Front Legroom:

41.5 inches

Rear Legroom:

44.4 inches

Trunk Volume:

550 Liters (19.4 cu ft)

Curb Weight:

1910 kg (4211 lbs)

Gross Vehicle Weight Rating:

2450 kg (5401 lbs)

🛡️ Safety Features

NHTSA Front Driver Side Impact:

4/5 Stars (Estimated based on era)

NHTSA Front Passenger Side Impact:

4/5 Stars (Estimated based on era)

Active Features:

Anti-lock Braking System (ABS), Automatic Stability Control (ASC) / Dynamic Stability Control (DSC) (optional/later standard), Traction Control.

Passive Features:

Front Airbags (Driver & Passenger), Side Airbags (optional), Crumple Zones, Reinforced Safety Cage, Seatbelt Pretensioners.

💡 Technology Features

Infotainment System:

BMW Professional Radio/Cassette/CD Player, optional navigation system (CCC Generation 1), Harman Kardon audio system (optional).

Driver Assistance:

Park Distance Control (PDC) (optional), Cruise Control, Rain Sensing Wipers (optional).

Connectivity:

On-board computer, optional integrated cellular phone.

Lighting:

Xenon Headlights (optional), Automatic Headlight Control.

🔧 Maintenance

Oil Change Interval:

Variable service interval indicated by 'Condition Based Service' (CBS) system, typically every 10,000-15,000 miles or 12-24 months, whichever comes first. Consult manual for specific CBS parameters.

Spark Plug Replacement:

Approx. 60,000 miles (refer to manual for exact specification and type)

Coolant Flush Interval:

Every 2-4 years or 30,000-60,000 miles

Engine Oil Specification:

BMW Longlife-98 (e.g., Castrol Syntec 5W-40 or equivalent synthetic).

Brake Fluid Specification:

DOT 4

Power Steering Fluid Specification:

Pentosin CHF 11S or ZF Servotronic Fluid

Known Issues:

N62/M62 VANOS seal degradation, coolant expansion tank failure, ABS/ASC sensor issues, oxygen sensor failure, mass airflow sensor issues, valve cover gasket leaks, EWS immobilizer problems, window regulator failures, pixelation on the instrument cluster display.

📚 Vehicle History

Brand Heritage:

BMW, established in 1916, has a long-standing reputation for producing high-performance luxury vehicles with a focus on driving dynamics and engineering excellence.

Model Evolution:

The E38 generation of the 7 Series, introduced in 1994, succeeded the E32. It was characterized by a more streamlined design and significant technological advancements. The 740iL was a core model in the lineup, offering a potent V8 engine in a long-wheelbase chassis.

Production Period:

1994-2001 (E38 Generation)

Manufacturing Locations:

Germany (Dingolfing Plant)

🏆 Awards & Recognition

Recognitions:

While specific awards for the 1998 model year are less commonly documented than modern vehicles, the E38 generation was widely praised by automotive journalists for its refined driving experience, luxurious interior, and advanced technology, solidifying BMW's position in the luxury sedan segment.