BMW 320i 320iA 320i(1.8L) 320iA (1.8L) 1975 1976 1977 1978 1979 1980 1981 1982 1983 Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: BMW Model: 3 Series Chassis Code: E21 Engine Variants Covered: 320i, 320iA, 320i(1.8L), 320iA (1.8L) Model Years Covered: 1975, 1976, 1977, 1978, 1979, 1980, 1981,...

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Taper: Car

Distributeur:

UGS: 92427

Mots clés: 1975 1976 1977 1978 1979 1980 1981 1982 1983 3 Series 320i 320i(1.8L) 320iA 320iA (1.8L) BMW Car Cars

Variantes de produits

Description

🏷️ Basic Information

Identification

Make:

Model:

3 Series

Chassis Code:

Engine Variants Covered:

320i, 320iA, 320i(1.8L), 320iA (1.8L)

Model Years Covered:

1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983

👋 Introduction

Market Position

The BMW E21 represented BMW's entry into the compact executive sports sedan segment, challenging established models.

Segment:

Compact Executive / Sport Sedan

Competitive Analysis

Key Competitors:

Mercedes-Benz W123, Audi 80/Fox, Alfa Romeo Alfetta, Ford Granada

Key Features

Design Philosophy:

Iconic 'Bangle' design elements, driver-focused cockpit, BMW's renowned handling characteristics.

Manual Value:

Essential resource for owners and mechanics to maintain, diagnose, and repair the classic BMW E21, enabling DIY maintenance and preserving vehicle value.

📋 Manual Details

Coverage Areas

Manual Type:

Workshop Service Repair Manual

Page Count:

Language:

English

Format:

PDF (Digital Download)

Delivery Method:

Instant Download

📖 Manual Coverage

Systems Covered

Engine:

Complete Overhaul, Diagnosis, Tuning

Engine Electrical:

Ignition System, Starting System, Charging System, Sensor Diagnostics

Fuel System:

Fuel Pump, Injectors, Fuel Lines, Fuel Tank, Fuel Pressure Regulation

Cooling System:

Radiator, Fan, Water Pump, Thermostat, Hoses, Antifreeze Specifications

Exhaust System:

Catalytic Converter (if applicable), Muffler, Exhaust Pipes, Gaskets

Clutch:

Clutch Operation, Disc, Pressure Plate, Release Bearing, Hydraulic System

Transmission:

Manual and Automatic Transmission Overhaul, Gear Ratios, Fluid Specifications, Shifter Linkage

Drivetrain:

Drive Shaft, Universal Joints, Differential, Axles

Front Axle:

Suspension Components, Ball Joints, Bushings, Control Arms

Steering:

Steering Rack, Tie Rods, Power Steering System (if equipped), Wheel Alignment Specifications

Rear Axle:

Suspension Components, Shock Absorbers, Control Arms, Bushings

Brakes:

Disc Brakes (Front and Rear), Brake Calipers, Rotors, Pads, Master Cylinder, Brake Lines, Bleeding Procedures, Parking Brake

Pedal Assembly:

Brake Pedal, Accelerator Pedal, Clutch Pedal (Manual)

Wheels And Tires:

Tire Pressure Specifications, Wheel Bolt Patterns, Rim Sizes

Body:

Body Panel Repair, Rust Prevention, Door Mechanisms, Window Regulators, Bumpers

Body Interior Equipment:

Dashboard, Trim Panels, Door Panels, Center Console

Seats:

Seat Adjustment Mechanisms, Upholstery Repair

Sliding Roof:

Sunroof Mechanism, Seals, Operation

Chassis Electrical:

Wiring Diagrams, Fuses, Relays, Lighting Circuits, Horn

Instruments:

Speedometer, Tachometer, Fuel Gauge, Warning Lights, Instrument Cluster Repair

Lights:

Headlights, Taillights, Turn Signals, Interior Lights, Bulb Specifications

HVAC:

Heating System, Ventilation, Air Conditioning (if equipped), Blower Motor, Controls

Radio And Accessories:

Antenna, Speaker Installation, Electrical Accessory Circuits

Equipment Parts And Accessories:

Engine and Chassis Component Identification and Installation

Procedures Included

Preventative Maintenance:

Scheduled Maintenance, Fluid Changes, Filter Replacements, Inspections

Troubleshooting:

Diagnostic Guides, Common Faults and Solutions, Electrical System Diagnosis

Repair:

Step-by-Step Repair Procedures for all Major Systems

Rebuild:

Detailed Engine and Transmission Rebuild Procedures

Restoration:

Guidance for restoring various components and systems

Technical Depth

Depth:

Comprehensive (covers everything from basic maintenance to complete engine rebuilds)

Detail Level:

Illustrated with clear step-by-step instructions, including exploded views and diagrams

Target Audience:

Professional Technicians, Mechanics, and DIY Enthusiasts

📊 Manual Specifications

File Format

File Type:

Compatibility:

Windows, Linux, Mac (requires PDF Reader)

Searchability:

Likely searchable text (typical for official PDF manuals)

Printability:

Printable without restrictions

Zoomability:

Zoomable illustrations

Compression:

May be zipped (requires WinZip or WinRAR for unzipping)

File Size Indication:

Up to 5GB (check specific listing for exact size)

Print Quality

Quality:

High Resolution (as expected from an original factory manual)

Binding Type

Type:

Not Applicable (Digital Download)

Paper Type

Type:

Not Applicable (Digital Download)

⚙️ Engine Specifications

Primary Engine

Engine Code:

M10 (variants for 320i)

Engine Type:

Inline-4 Cylinder, SOHC (Single Overhead Camshaft)

Displacement:

1.8 Liters (approx. 1766cc)

Performance

Horsepower Range:

Approximately 100-115 hp (depending on specific market and tune)

Torque Range:

Approximately 100-115 lb-ft (depending on specific market and tune)

Fuel System

Fuel Delivery:

Bosch L-Jetronic Fuel Injection (for 320i models)

Fuel Type:

Unleaded Gasoline (typically 91 RON or higher)

Technical Details

Bore X Stroke:

84.0 mm x 80.0 mm (typical for 1.8L M10)

Compression Ratio:

Typically 8.3:1 or 8.8:1 (depending on variant)

Ignition System:

Electronic Ignition (e.g., breakerless)

🔧 Transmission

Standard

Type:

4-speed Manual Transmission

Optional

Type:

3-speed ZF Automatic Transmission (denoted by 'A' in model name, e.g., 320iA)

Features

Manual Gear Ratios:

Specific ratios available within the manual for detailed analysis.

Automatic Features:

Torque converter, likely with a lock-up feature in later models.

📐 Dimensions

Exterior

Length:

Approx. 4360 mm (171.7 in)

Width:

Approx. 1610 mm (63.4 in)

Height:

Approx. 1380 mm (54.3 in)

Weights

Curb Weight:

Approx. 1200 - 1300 kg (2645 - 2866 lbs), depending on transmission and options.

🛡️ Safety Features

Ratings

Crash Test Info:

While specific ratings from modern agencies are not available for this era, the E21 featured crumple zones and a robust safety cell for its time.

Active Features

Braking System:

Front disc brakes, rear drum brakes.

Passive Features

Seatbelts:

Standard lap and shoulder belts (front), lap belts (rear).

Steering Column:

Collapsible steering column for improved impact protection.

💡 Technology Features

Infotainment

Audio System:

Factory radio typically a simple AM/FM unit, often with a cassette player in later models. Upgrades are common.

Driver Assistance

Systems:

No significant electronic driver assistance systems were standard or commonly available during this period.

Connectivity

Features:

Basic electrical connectivity for lights, ignition, and accessories.

🔧 Maintenance

Service Intervals

Oil Change:

Typically every 5,000 - 7,500 miles or 6-12 months, check manual for specific recommendations.

Tune Up:

Spark plugs, ignition points (if applicable), fuel filter, air filter usually recommended every 15,000 - 30,000 miles.

Timing Belt Chain:

M10 engines utilize a timing chain, which is generally maintenance-free for the life of the engine but requires inspection for wear.

Fluid Specifications

Engine Oil:

Refer to manual for specific API service classification and viscosity (e.g., SAE 20W-50, 15W-40 typical for the era).

Coolant:

BMW approved coolant (typically ethylene glycol based) mixed with distilled water (50/50 ratio).

Transmission Fluid Manual:

GL-4 gear oil (e.g., SAE 75W-90 or 80W-90)

Transmission Fluid Automatic:

Dexron II or equivalent ATF (Automatic Transmission Fluid).

Brake Fluid:

DOT 3 or DOT 4 brake fluid.

Power Steering Fluid:

ATF (Automatic Transmission Fluid) or specific power steering fluid.

Known Issues

Rust:

Common rust points include wheel arches, rocker panels, strut towers, and the spare tire well.

Fuel Injection:

Aging fuel injectors, fuel pressure regulators, and electrical connections can lead to performance issues.

Electrical Gremlins:

As with many cars of this era, aging wiring harnesses, grounds, and switches can cause intermittent electrical problems.

Suspension Wear:

Bushings, ball joints, and tie rod ends are common wear items, impacting handling and alignment.

📚 Vehicle History

Brand Heritage

Legacy:

BMW has a long-standing reputation for building sporty, driver-oriented sedans, a legacy heavily influenced by the E21.

Model Evolution

Generation:

The E21 was the first generation of the BMW 3 Series, replacing the BMW 02 Series.

Key Innovations:

Introduction of McPherson struts in the front suspension for improved handling and ride comfort compared to its predecessor.

Production

Production Years:

1975-1983

Manufacturing Locations:

Germany (primarily Dingolfing plant)

🏆 Awards & Recognition

Recognitions

Industry Accolades:

While specific annual awards are not widely documented, the E21 was lauded for its driving dynamics and build quality, establishing the 3 Series as a benchmark.

Certifications

Manual Authenticity:

Stated as an 'original BMW E21... manual,' suggesting it's a factory-produced document.