🏷️ Basic Information

Make:

BMW

Model:

3 Series

Chassis Code:

E30

Product Name:

BMW 3 Series E30 Technical Workshop Manual

Engine Codes Covered:

M10 (e.g., M10B18, M10B20), M20 (e.g., M20B23, M20B25), M40 (e.g., M40B18), M30 (e.g., M30B32 - though less common in E30, covered for completeness in some manuals)

Chassis Codes Covered:

E30 (all variants including coupe, sedan, convertible, touring)

👋 Introduction

Positioning:

The E30 3 Series is a legendary modern classic, known for its driving dynamics and build quality. This manual is essential for owners looking to maintain or restore these vehicles.

Manual Utility:

Competes with other official BMW workshop manuals and reputable aftermarket manuals, offering detailed, model-specific information for DIY enthusiasts and professional mechanics alike.

Ease Of Use:

Detailed instructions, exploded views, and diagrams simplify complex procedures, making it accessible for varying skill levels.

Comprehensiveness:

Covers all aspects of the vehicle, from routine maintenance to major overhauls, providing a complete resource.

Format Advantage:

Instant PDF download provides immediate access for urgent repairs or pre-purchase inspections.

📋 Manual Details

Coverage Years:

1983-1991

Estimated Page Count:

Extensive, typically 800-1500+ pages depending on specific edition and engine variants.

Type:

Workshop Service Repair Manual

Language:

English

Format:

PDF (Digital Download)

📖 Manual Coverage

Engine:

Engine mechanical, lubrication, cooling, fuel, ignition, exhaust, emissions control, engine management (DME/DDK).

Transmission:

Manual and Automatic transmission overhaul, repair, adjustment, and fluid specifications.

Drivetrain:

Clutch, driveshafts, differential, rear axle assembly.

Suspension:

Front and rear suspension components, steering system, shock absorbers, springs, bushings.

Brakes:

Brake system hydraulics, calipers, master cylinder, ABS (where applicable), brake pad/disc replacement, bleeding procedures.

Electrical:

Complete wiring diagrams, component location, starter, alternator, battery, lighting, instruments, relays, fuses, power windows, central locking.

Bodywork:

Body panel removal/installation, door mechanisms, interior trim, glass replacement, body maintenance, rust prevention.

Climate Control:

HVAC system diagnosis and repair, A/C system service (where applicable).

Maintenance:

Routine maintenance, oil changes, filter replacements, spark plug replacement, belt adjustments, fluid level checks.

Troubleshooting:

Diagnostic procedures, fault finding charts, symptom-based troubleshooting for common issues.

Repair:

Detailed step-by-step repair instructions for all major vehicle systems, component overhauls, and replacements.

Disassembly Assembly:

Exploded views and diagrams for correct disassembly and reassembly of all components.

Adjustments:

Precise adjustment procedures for engine timing, idle speed, valve clearances (where applicable), clutch, brakes, headlights.

Depth:

Comprehensive, covering basic DIY maintenance to advanced engine rebuilding and electrical diagnostics.

📊 Manual Specifications

File Type:

PDF

Searchability:

Likely text-searchable PDF, enabling quick keyword searches for specific procedures or components.

Print Readability:

Designed for clarity, with clear text and high-resolution diagrams suitable for printing.

Binding:

N/A (Digital Download)

Paper Quality:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Family 1:

M10 (4-cylinder, SOHC, 8-valve)

Engine Family 2:

M20 (6-cylinder, SOHC, 12-valve)

Engine Family 3:

M40 (4-cylinder, SOHC, 8-valve, later models)

Engine Family 4:

S14 (4-cylinder, DOHC, 16-valve, M3 models)

Typical Hp Range:

75 hp (316i) to 238 hp (M3 Evolution).

Typical Torque Range:

140 Nm (316i) to 320 Nm (M3 Evolution).

Fuel Delivery Types:

Carbureted (early models) and Bosch L-Jetronic/Motronic fuel injection (later models and higher trims).

🔧 Transmission

Standard Transmission:

4-speed or 5-speed manual transmission (Getrag 240, Getrag 260).

Optional Transmission:

3-speed or 4-speed automatic transmission (ZF 3HP22, ZF 4HP22).

Clutch Type:

Single dry plate clutch.

Transmission Fluid Spec Manual:

Manual transmission fluid (e.g., ATF or specific GL-4 gear oil depending on gearbox).

Transmission Fluid Spec Automatic:

Dexron III/Mercon ATF or equivalent for automatic transmissions.

📐 Dimensions

Length:

Approximately 4325-4340 mm (sedan/coupe), 4220 mm (convertible).

Width:

Approximately 1675-1680 mm.

Height:

Approximately 1365-1380 mm (sedan/coupe), 1370 mm (convertible).

Wheelbase:

Approximately 2570 mm.

Curb Weight:

Approximately 1150-1350 kg depending on engine and body style.

🛡️ Safety Features

Crash Testing Era:

Tested under 1980s safety standards; no modern standardized ratings (e.g., NCAP) apply directly.

Brakes:

Front disc brakes, rear drum brakes (standard on most models), optional front and rear discs with ABS on later/performance models.

Steering:

Recirculating ball steering, power steering optional/standard on higher trims.

Seatbelts:

Three-point inertia reel seatbelts (front), lap belts (rear).

Body Construction:

Unitized body construction with crumple zones.

💡 Technology Features

Radio System:

Early models featured basic AM/FM radios; later models offered premium sound systems with cassette players. Aftermarket upgrades are common.

ABS:

Anti-lock Braking System (ABS) was an option on many models and standard on some performance variants (e.g., M3).

Features:

Limited connectivity by modern standards; primarily focused on mechanical and electrical systems rather than advanced electronic integration.

🔧 Maintenance

Oil Change Interval:

Typically 10,000-15,000 km or annually, depending on driving conditions and oil used.

Major Service Intervals:

Timing belt replacement (M40) every 60,000 km or 4 years; chain maintenance for M10/M20/S14.

Engine Oil Type:

API SG/SH, SAE 15W-40, 10W-40, or 5W-30 depending on climate and specific engine. Consult manual for precise grades.

Coolant Type:

Ethylene glycol-based antifreeze with corrosion inhibitors (BMW P/N 82 14 9 404 076 or equivalent).

Brake Fluid Type:

DOT 3 or DOT 4 hydraulic brake fluid.

Common Engine Issues:

Oil leaks (valve cover, oil pan), fuel distributor issues (M10), coolant leaks (thermostat housing, water pump), idle control valve problems.

Common Electrical Issues:

Corroded wiring, faulty grounds, headlight switch failure, intermittent instrument cluster issues.

Common Suspension Issues:

Worn control arm bushings, worn ball joints, trailing arm bushings (common failure point on rear), strut mounts.

Common Body Issues:

Rust in common areas: jacking points, rear fender arches, front strut towers, battery tray, sunroof drains.

📚 Vehicle History

Bmw Philosophy:

BMW's 'Ultimate Driving Machine' ethos heavily influenced the E30's design, prioritizing driver engagement and performance.

Introduction:

Launched in 1982 as a successor to the E21, the E30 defined the compact executive sedan segment for BMW.

Body Styles:

Initially introduced as a 2-door sedan, it was later joined by a 4-door sedan, convertible, and the rare Touring (wagon) variant.

M3 Development:

The E30 M3, launched in 1986, was a homologation special for motorsport and is considered one of the greatest driver's cars of its era.

Production Years:

1982-1991 (with some convertible production extending slightly longer).

Key Production Locations:

Germany (Munich, Dingolfing), South Africa, USA.

🏆 Awards & Recognition

Critical Acclaim:

Widely praised for its handling, balance, and driver feedback. The E30 M3 is a multiple award winner and motorsport icon.

Collectible Status:

Considered a modern classic and highly collectible, particularly well-preserved examples and M3 variants.