BMW 518i 1981 Full Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 518i Year: 1981 Codes Chassis Code: E28 👋 Introduction Market Position Segment: Executive Sedan Target Audience: Owners seeking in-depth repair and maintenance knowledge,...

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Taper: Car

Distributeur:

UGS: 421386

Mots clés: 1981 518i BMW Car Cars Misc

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Model:

Year:

Codes

Chassis Code:

👋 Introduction

Market Position

Segment:

Executive Sedan

Target Audience:

Owners seeking in-depth repair and maintenance knowledge, independent mechanics, restoration enthusiasts

Competitive Analysis

Competitors 1981:

Mercedes-Benz W123, Audi 100, Volvo 240

Key Features

Bmw Philosophy:

Emphasis on driving dynamics, build quality, and performance engineering

E28 Platform:

Introduction of the E28 platform, a significant evolution of BMW's mid-size luxury sedan with improved aerodynamics and chassis dynamics.

📋 Manual Details

Coverage Areas

Engine Service:

Complete engine overhaul, diagnosis, component replacement

Transmission Service:

Manual and automatic transmission repair, fluid changes, clutch replacement

Electrical System:

Wiring diagrams, component testing, troubleshooting starting and charging systems, lighting, instrumentation

Fuel System:

Fuel injection system (Bosch L-Jetronic), fuel pump, injectors, fuel filter replacement

Suspension And Steering:

Front and rear suspension components, shock absorbers, springs, steering rack, tie rods

Brake System:

Disc brake overhaul, caliper servicing, master cylinder replacement, brake bleeding procedures

Body And Chassis:

Body panel repair, rust prevention, door mechanisms, interior trim removal and installation

Heating And Air Conditioning:

HVAC system operation, component testing, refrigerant handling (where applicable)

Diagnostic Procedures:

Troubleshooting guides for common issues, fault code interpretation (where applicable)

Page Count

Estimated Pages:

700-900

Manual Type

Type:

Full Service Repair Manual

Language

Language:

English

Format

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered

Powertrain:

Engine mechanicals, fuel delivery, ignition, exhaust, transmission, driveline

Chassis:

Suspension (front and rear), steering, brakes (front and rear discs), wheels, tires

Electrical:

Battery, charging system, starting system, lighting, wipers, horn, instrumentation, fuel injection control, engine management

Body:

Exterior panels, doors, windows, locks, seals, interior trim, seats, dashboard

Procedures Included

Preventive Maintenance:

Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspection and adjustment

Troubleshooting:

System-specific diagnostic flowcharts, symptom-based troubleshooting guides

Repair And Rebuild:

Engine overhaul (pistons, rings, bearings, valves), cylinder head service, transmission rebuilds, brake caliper overhaul, suspension component replacement

Adjustment:

Valve clearance adjustment, ignition timing adjustment, idle speed adjustment

Component Replacement:

Alternator, starter motor, fuel pump, water pump, radiator, clutch assembly, shock absorbers, brake pads/rotors

Technical Depth

Depth:

Comprehensive: From basic maintenance to complete engine and transmission rebuilds, including detailed electrical system diagnostics.

📊 Manual Specifications

File Format

Searchability:

Searchable text for quick information retrieval

Printability:

Printable pages for workshop use

Print Quality

Image Resolution:

High-resolution images and diagrams for clarity

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Code:

Configuration:

Inline 4-cylinder, SOHC

Displacement:

1.8 Liters (1766 cc)

Bore X Stroke:

89.0 mm x 80.0 mm

Compression Ratio:

8.3:1

Performance

Horsepower Net:

90 PS (89 bhp / 66 kW) at 5500 rpm

Torque Net:

140 Nm (103 lb-ft) at 3000 rpm

Fuel System

Fuel Injection Type:

Bosch L-Jetronic (Lambda Control)

Fuel Type:

Unleaded Gasoline (Octane Rating 91 or higher recommended)

Engine Management

Ignition System:

Electronic Ignition (Distributor-based)

Cooling System

Cooling Type:

Water-cooled

Lubrication System

Oil Capacity With Filter:

4.5 Liters (4.8 US qt)

Recommended Oil Viscosity:

SAE 10W-40 or 15W-40 (depending on climate)

🔧 Transmission

Standard

Type:

4-speed Manual

Optional

Type:

3-speed ZF Automatic (e.g., ZF 3HP22)

Features

Clutch Type:

Single dry plate, hydraulically operated

Fluid Specs

Manual Transmission Fluid:

GL-4 75W-90 Synthetic (or equivalent)

Automatic Transmission Fluid:

Dexron II (or equivalent)

📐 Dimensions

Exterior

Length:

4,620 mm (181.9 in)

Width:

1,700 mm (66.9 in)

Height:

1,420 mm (55.9 in)

Wheelbase:

2,795 mm (110.0 in)

Front Track:

1,430 mm (56.3 in)

Rear Track:

1,456 mm (57.3 in)

Weights

Curb Weight Manual:

1,300 kg (2,866 lbs)

Curb Weight Automatic:

1,330 kg (2,932 lbs)

Gross Vehicle Weight Rating:

1,800 kg (3,968 lbs)

Payload Capacity:

500 kg (1,102 lbs)

🛡️ Safety Features

Ratings

Crash Test Era:

Era-specific safety standards; frontal impact performance was typical for its time.

Active Features

Brakes:

Front: Ventilated Disc, Rear: Disc

Parking Brake:

Mechanical, acting on rear wheels

Passive Features

Seatbelts:

Front: 3-point inertia reel seatbelts

Steering Column:

Collapsible steering column for improved occupant protection

Headrests:

Integrated front headrests

💡 Technology Features

Infotainment

Radio:

Typically an AM/FM radio with cassette player, often with analog tuning.

Speakers:

Door-mounted or dashboard speakers, often 4 or 6.

Driver Assistance

Anti-lock Braking System (ABS) was an optional feature on some E28 models, but not standard on the 518i.

Cruise Control:

Optional cruise control available on some models.

Connectivity

Original Connectivity:

N/A (Pre-digital era)

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 10,000 km (6,000 miles) or 12 months, whichever comes first.

Air Filter Replacement:

Every 20,000 km (12,000 miles) or as needed based on driving conditions.

Spark Plug Replacement:

Every 40,000 km (24,000 miles)

Brake Fluid Flush:

Every 24 months

Coolant Flush:

Every 24-36 months

Fluid Specifications

Coolant Type:

Ethylene Glycol-based antifreeze (e.g., BMW P/N 82 14 9 401 697 or equivalent) mixed 50/50 with distilled water.

Brake Fluid Type:

DOT 3 or DOT 4

Known Issues

Fuel System Issues:

Clogged fuel injectors, failing fuel pump, faulty airflow meter in L-Jetronic system.

Cooling System Issues:

Radiator leaks, thermostat failure, heater core leaks, water pump leaks.

Electrical Issues:

Corroded wiring harnesses, failing alternator or starter, intermittent electrical components due to age.

Rust Prone Areas:

Wheel arches, rocker panels, sills, rear spring support towers.

Suspension Wear:

Worn control arm bushings, ball joints, and shock absorbers leading to imprecise handling and noise.

📚 Vehicle History

Brand Heritage

Bmw Legacy:

BMW's long-standing reputation for engineering excellence, performance, and luxury.

Model Evolution

E12 To E28 Transition:

The E28 succeeded the E12 5 Series, representing a refinement of its predecessor with updated styling, improved aerodynamics, and enhanced technology.

Production

Production Period:

1981-1987

Manufacturing Locations:

Germany, South Africa, Mexico

E28 Significance:

The E28 platform was a critical model for BMW, solidifying its position in the executive sedan market and paving the way for future 5 Series generations.

🏆 Awards & Recognition

Recognitions

E28 Reputation:

The E28 generation was widely praised for its driving dynamics, build quality, and performance, establishing the BMW 5 Series as a benchmark in its class.