🏷️ Basic Information

Make:

BMW

Model:

518i

Year:

1984

Chassis Code:

E28

Engine Code Range:

M10 family

👋 Introduction

Segment:

Executive/Luxury Mid-size Sedan

Competitors:

Mercedes-Benz W124 E-Class, Audi 100, Volvo 740/760, Saab 9000, Jaguar XJ.

Distinguishing Attributes:

Renowned BMW driving dynamics, refined interior, robust build quality, and the efficiency of the 518i's fuel-injected engine for its era.

📋 Manual Details

Systems Covered:

Engine mechanical, Engine electrical, Fuel system, Ignition system, Cooling system, Lubrication system, Exhaust system, Transmission (manual and automatic), Clutch, Driveshaft, Differential, Suspension (front and rear), Steering, Brakes (front and rear), Electrical system (lighting, accessories, dashboard), Body and chassis, Interior trim, Heating and ventilation, Air conditioning (if equipped).

Estimated Pages:

500-700

Type:

Service and Repair Workshop Manual

Content Focus:

Technician-focused, providing in-depth procedural information, specifications, and diagnostic guidance.

Language:

English

Format:

Digital (likely PDF, based on typical offerings)

📖 Manual Coverage

Engine Mechanical:

Detailed disassembly, inspection, and reassembly procedures for cylinder head, engine block, pistons, connecting rods, crankshaft, camshaft, timing system, and lubrication components. Torque specifications for all critical fasteners.

Engine Electrical:

Wiring diagrams, starter system, alternator, battery, ignition system components (coil, distributor, spark plugs), and engine control unit (ECU) diagnostics.

Fuel System:

Bosch L-Jetronic fuel injection system (for the 'i' designation), fuel pump, fuel injectors, fuel pressure regulator, fuel lines, and troubleshooting of fuel delivery issues.

Transmission:

Service and repair for the Getrag 260 5-speed manual transmission and optional ZF 4HP22 automatic transmission, including clutch replacement, gear linkage adjustments, and transmission fluid service.

Brakes:

Disc brake system (front and rear), hydraulic system components, brake fluid specifications, bleeding procedures, brake pad and rotor replacement, parking brake system.

Suspension Steering:

Front MacPherson strut suspension, rear semi-trailing arm suspension, shock absorber replacement, spring replacement, ball joint inspection, power steering system service and troubleshooting.

Bodywork:

Body panel repair, door mechanisms, window regulators, lock systems, exterior trim, and corrosion prevention advice.

Maintenance:

Oil and filter changes, air filter replacement, spark plug replacement, coolant service, brake fluid flush, transmission fluid service, differential fluid service, fuel filter replacement, belt inspections and adjustments.

Troubleshooting:

Systematic diagnostic procedures for common problems related to engine performance, starting issues, electrical faults, braking problems, and suspension noise.

Repair:

Step-by-step instructions for major component removal, repair, and installation, including engine rebuild, transmission overhaul, suspension component replacement, and body panel repair.

Diagnostics:

Diagnostic flowcharts for engine, fuel, ignition, and electrical systems. Basic electrical testing procedures, multimeter usage for fault finding.

Electrical Repairs:

Headlight/taillight bulb replacement, fuse box identification and replacement, battery testing and replacement, starter motor and alternator testing and replacement.

Depth:

Comprehensive, covering from routine maintenance to complete engine and transmission overhauls. Includes detailed diagnostic procedures and specifications required for professional repair.

Diagnostic Tools:

Specifies required tools, including specialized BMW engine timing tools, torque wrenches, multimeter, and diagnostic equipment relevant for L-Jetronic systems.

📊 Manual Specifications

File Type:

Likely PDF, optimized for searchability and clear image rendering.

Searchability:

Fully searchable text for quick access to specific topics and procedures.

Image Resolution:

High-resolution scans of original diagrams and photographs, ensuring clarity of technical illustrations.

Binding:

N/A (Digital Format)

Paper Quality:

N/A (Digital Format) - If printed, typically on durable, semi-gloss paper for workshop use.

Scope:

This workshop manual aims for complete coverage of all service, repair, and diagnostic procedures required to maintain and repair the BMW 518i (E28) from 1984.

⚙️ Engine Specifications

Engine Type:

Inline 4-cylinder, SOHC

Engine Code:

M10B18

Displacement:

1.8 Liters (1766 cc)

Bore X Stroke:

89.0 mm x 80.0 mm

Compression Ratio:

8.3:1 (typical)

Horsepower:

99 hp @ 5800 rpm (approx.)

Torque:

135 Nm (99 lb-ft) @ 3700 rpm (approx.)

0 To 60 Mph:

Approx. 11.5 - 12.5 seconds (for manual transmission, highly dependent on condition).

Injection System:

Bosch L-Jetronic Fuel Injection

Fuel Type:

Unleaded Petrol (Regular Octane)

Oil Capacity:

Approx. 4.5 Liters (4.8 US quarts) with filter change

Coolant Capacity:

Approx. 7.0 Liters (7.4 US quarts)

🔧 Transmission

Type:

Getrag 260 5-speed Manual

Type:

ZF 4HP22 4-speed Automatic

Manual Fluid Spec:

BMW G3 (or equivalent API GL-4) SAE 75W-90 gear oil

Automatic Fluid Spec:

ATF Dexron II (or equivalent)

📐 Dimensions

Length:

4620 mm (181.9 in)

Width:

1700 mm (66.9 in)

Height:

1415 mm (55.7 in)

Curb Weight Manual:

Approx. 1320 kg (2910 lbs)

Curb Weight Auto:

Approx. 1350 kg (2976 lbs)

Gross Vehicle Weight Rating:

Approx. 1800 kg (3968 lbs)

Wheelbase:

2795 mm (110.0 in)

Trunk Volume:

Approx. 0.465 m³ (16.4 cu ft)

🛡️ Safety Features

Crash Test Data:

Limited official crash test data available for this specific model and year; E28 platform generally considered robust for its era.

Braking System:

Front ventilated discs, rear solid discs. Power assisted with potentially optional ABS on later models/specific markets.

Seatbelts:

Three-point inertia-reel seatbelts in front, lap belts in rear (typical for the era).

Headrests:

Front and rear headrests

💡 Technology Features

Audio System:

Typically an aftermarket or original BMW radio/cassette player. Analog controls for climate and other functions.

ABS:

Optional, not standard across all models. If equipped, it's an early iteration of ABS.

Connectivity Features:

None by modern standards; focused on mechanical and basic electrical systems.

🔧 Maintenance

Oil Change:

Every 10,000 km (6,000 miles) or 6 months, whichever comes first. (Recommended for optimal engine life).

Spark Plugs:

Every 20,000-30,000 km (12,000-18,000 miles), depending on type. (Refer to manual for specific plug part numbers).

Air Filter:

Every 20,000 km (12,000 miles) or annually.

Engine Oil Spec:

API SG/SH or ACEA A2/A3, SAE 10W-40 or 15W-50 (depending on climate). Consult manual for precise BMW approval or viscosity recommendations.

Coolant Type:

Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio). BMW Blue coolant (G48) or equivalent.

Brake Fluid Spec:

DOT 4

Power Steering Fluid:

BMW Power Steering Fluid (or CHF 11 S / Dexron III for later E28 variants, consult manual for certainty)

Common Wear Items:

Front control arm bushings, rear trailing arm bushings, heater control valve, fuel pump, ignition module, exhaust system components, rust in common E28 areas (e.g., jacking points, rear arches).

Ljetronic Issues:

Potential for vacuum leaks, faulty airflow meter sensor, or worn injector seals impacting idle and fuel mixture.

Cooling System:

Thermostat failure, radiator leaks, water pump issues are common with age. Hoses should be inspected and replaced periodically.

📚 Vehicle History

Bmw Philosophy:

BMW's commitment to 'The Ultimate Driving Machine' ethos, focusing on driver engagement, performance, and build quality.

E28 Generation:

The E28 generation (1981-1988) was an evolution of the E12, featuring improved aerodynamics, updated styling, and more advanced engineering. The 518i was an entry-level variant within this lineup.

E28 Variants:

The E28 was offered in various engine sizes, including 518i, 520i, 525i, 528i, 535i, and the M535i. The 518i represented the most accessible entry point into the E28 range.

Manufacturing Period:

The E28 generation was produced from 1981 to 1988. The 518i model was available during this period, particularly in European markets.

🏆 Awards & Recognition

Industry Standing:

The E28 generation was well-regarded for its driving dynamics and build quality, contributing to BMW's reputation as a premium automotive manufacturer.