BMW 8 Series 1989 Factory Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 8 Series Year: 1989 Codes Chassis Code: E31 👋 Introduction Market Position Segment: Luxury Grand Tourer (GT) Predecessor: BMW 6 Series (E24) Target...

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Description

🏷️ Basic Information

Identification

Make:

Model:

8 Series

Year:

Codes

Chassis Code:

👋 Introduction

Market Position

Segment:

Luxury Grand Tourer (GT)

Predecessor:

BMW 6 Series (E24)

Target Audience:

Affluent buyers seeking performance, luxury, and advanced technology

Competitive Analysis

Primary Competitors:

Mercedes-Benz S-Class Coupe, Porsche 928, Jaguar XJS

Key Features

Design Language:

Aerodynamic, flowing lines, low drag coefficient, iconic Hofmeister kink

Engineering Philosophy:

Performance-oriented luxury, driver-focused cockpit, advanced technological integration

Interior Appointments:

Premium materials, ergonomic design, driver-centric controls

📋 Manual Details

Coverage Areas

Primary Coverage:

North America

Secondary Coverage:

Europe, Global

Page Count

Estimated Pages:

1500+

Manual Type

Type:

Factory Service Manual / Workshop Manual

Language

Language:

English

Format

Format:

Digital (likely PDF)

📖 Manual Coverage

Systems Covered

Engine:

All Engine Variants (V8 M60B40, V12 M70B50)

Transmission:

Automatic (4HP24, 4HP22-EH), Manual (Getrag 420G - specific models/regions)

Drivetrain:

Rear-Wheel Drive (RWD)

Suspension:

Front (Double Wishbone), Rear (Trailing Arm)

Brakes:

Front (Vented Discs), Rear (Discs), ABS (Anti-lock Braking System)

Steering:

Hydraulic Power Steering, Servotronic (speed-sensitive)

Electrical:

Comprehensive wiring diagrams, diagnostic procedures, component testing

Body:

Body and chassis repair, panel replacement, trim, aerodynamics

HVAC:

Automatic Climate Control, diagnostics and repair

Interior:

Seats, upholstery, dashboard, interior trim

Procedures Included

Maintenance:

Oil changes, fluid checks, filter replacements, spark plug service

Diagnostics:

Troubleshooting guides, fault code interpretation, component testing

Repair:

Engine rebuilds, transmission overhaul, suspension component replacement, brake system repair

Adjustments:

Valve adjustments, idle speed adjustments, shift linkage adjustments

Installation:

Component installation and removal procedures

Troubleshooting Electrical:

Detailed wiring diagrams and troubleshooting trees for electrical faults

Technical Depth

Depth:

Comprehensive (from basic maintenance to complete engine/transmission overhauls)

Diagnostic Level:

Advanced diagnostics, including DME (Digital Motor Electronics) and transmission control unit (TCU) diagnostics

Rebuild Procedures:

Detailed procedures for engine and transmission rebuilds, including specifications and torque values

Special Tools:

Lists and descriptions of BMW special tools required for specific procedures

📊 Manual Specifications

File Format

Searchable Text:

Yes (typically PDF)

Printable:

Print Quality

Diagram Clarity:

High (original factory quality)

Text Legibility:

Excellent

Binding Type

Original Binding:

Hardcover / Comb-bound (depending on original issuance)

Digital Binding:

N/A (digital format)

Paper Type

Original Paper:

High-quality, durable paper stock

Digital Resolution:

High resolution for clear image reproduction

⚙️ Engine Specifications

Primary Engine

Engine Code V8:

M60B40

Engine Type V8:

4.0L V8 DOHC 32-valve

Bore Stroke V8:

84 mm x 90 mm

Compression Ratio V8:

10.0:1

Horsepower V8:

282 hp @ 5800 rpm

Torque V8:

295 lb-ft @ 4500 rpm

Engine Code V12:

M70B50

Engine Type V12:

5.0L V12 SOHC 24-valve

Bore Stroke V12:

84 mm x 91 mm

Compression Ratio V12:

8.8:1

Horsepower V12:

295 hp @ 5200 rpm

Torque V12:

332 lb-ft @ 3900 rpm

Fuel System

Fuel Delivery:

Bosch Motronic Engine Management (Sequential Fuel Injection)

Fuel Type:

Premium Unleaded Gasoline (91+ octane)

🔧 Transmission

Standard

Standard Transmission:

4-Speed Automatic (4HP24 for V8, 4HP22-EH for V12)

Optional

Optional Transmission:

5-Speed Manual (Getrag 420G - E31 850i/Ci, limited availability/regions)

Features

Automatic Modes:

Sport and Comfort modes (on some models)

Transmission Fluid V8 Auto:

Dexron III / Mercon (refer to manual for specific part number/type)

Transmission Fluid V12 Auto:

Dexron III / Mercon (refer to manual for specific part number/type)

Manual Fluid:

BMW MTF LT-2 (refer to manual for specific part number/type)

📐 Dimensions

Exterior

Length:

191.1 inches (4855 mm)

Width:

71.7 inches (1820 mm)

Height:

51.1 inches (1298 mm)

Wheelbase:

111.4 inches (2830 mm)

Front Track:

61.0 inches (1550 mm)

Rear Track:

60.2 inches (1530 mm)

Weights

Curb Weight V8:

approx. 3,800 lbs (1724 kg)

Curb Weight V12:

approx. 4,200 lbs (1905 kg)

Refer to vehicle specific plate

Towing Capacity:

Not Specified / Not Recommended

🛡️ Safety Features

Ratings

NHTSA Rating 1989:

Not readily available for this era's specific models

Active Features

Standard (Bosch ABS III)

Traction Control:

ASC (Automatic Stability Control) - Optional on V8, Standard on V12

Headlights:

Retractable Halogen (later models received HID option)

Passive Features

Airbags:

Driver's Airbag (Standard), Passenger Airbag (Optional, later became standard)

Seatbelts:

Automatic front seat belts, manual rear seat belts

Body Construction:

High-strength steel unibody with crumple zones

💡 Technology Features

Infotainment

Radio:

BMW Professional RDS Cassette Player

Navigation:

Optional BMW Trafficmaster or early Navigation systems (depending on market/year)

Climate Control:

Dual-zone automatic climate control

Driver Assistance

Cruise Control:

Standard electronic cruise control

Parking Assistance:

Rear parking sensors (optional on later models)

Connectivity

Phone Integration:

Optional BMW car phone preparation

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 7,500-10,000 miles or annually (refer to manual)

Spark Plug Replacement:

V8: 60,000 miles; V12: 30,000 miles (refer to manual for specific types)

Coolant Flush Interval:

Every 2-3 years or 30,000 miles

Brake Fluid Flush:

Every 2 years

Fluid Specifications

Engine Oil Capacity V8:

8.5 US quarts (8.0 Liters) with filter (refer to manual for specific grade)

Engine Oil Capacity V12:

7.9 US quarts (7.5 Liters) with filter (refer to manual for specific grade)

Coolant Type:

BMW Blue Antifreeze/Coolant (G48 specification)

Power Steering Fluid:

BMW CHF 11S or equivalent (refer to manual)

Known Issues

Cooling System E31:

Plastic coolant pipes prone to cracking, radiator leaks, fan clutch failure

Electronics E31:

Central locking issues, headlight leveling system failures, ABS sensor problems

V12 Complexity:

Dual VANOS system (on later models) and complex ignition system require specialized knowledge

Interior Wear:

Creaking trim, headliner sagging, seat bolster wear

Suspension Bushings:

Worn control arm bushings and subframe bushings can lead to poor handling

📚 Vehicle History

Brand Heritage

Bmw Philosophy:

Ultimate Driving Machine, performance, luxury, innovation

Model Evolution

E31 Introduction:

Introduced in 1989 as a successor to the E24 6 Series, marking a new era of BMW grand touring

Design Inspiration:

Pioneered advanced aerodynamics and integrated technology

Engine Development:

Featured BMW's first production V8 and the smooth M70 V12 engine

Production

Production Years:

1989 - 1999

Manufacturing Location:

Dingolfing, Germany

Total Production Units:

approx. 30,600 units

🏆 Awards & Recognition

Recognitions

Design Awards:

Often cited for its timeless and aerodynamic design

Performance Accolades:

Praised for its V12 engine and sophisticated chassis dynamics

Certifications

Euro Ncap Rating:

Not applicable for 1989 model year.