Positioning:
The BMW 5 Series (E28) was positioned as a premium mid-size executive sedan, offering a balance of luxury, performance, and engineering prowess.
Competitors:
Competed with vehicles like the Mercedes-Benz W123/W124, Audi 100/200, and Jaguar XJ6.
Design Philosophy:
Emphasized driver-centric design, advanced engineering for its time, and high build quality.
Manual Value Proposition:
Provides essential, in-depth technical information for owners and mechanics to maintain and repair the BMW 518 (E28) effectively, covering both mechanical and electrical aspects comprehensively.
Years Covered:
1981, 1982, 1983, 1984, 1985
Models Covered:
All 518 models
Repair Scope:
Mechanical and Electrical Repairs (A-Z)
Estimated Page Count:
Varies (typical workshop manuals of this era are extensive, often 500+ pages)
Type:
Workshop Service Repair Manual
Format:
Digital (Printable Pages)
Engine:
Engine overhaul, tuning, cooling system, fuel system, lubrication system, ignition system, exhaust system
Transmission:
Manual and automatic transmission repair, clutch, driveshafts, differentials
Brakes:
Brake system diagnostics, repair, hydraulic components, parking brake
Suspension Steering:
Front and rear suspension components, shock absorbers, springs, steering system, power steering
Electrical:
Wiring diagrams, lighting system, starting and charging system, instrumentation, fuses, relays, electronic control units (ECU) for the era
Body Chassis:
Body panel repair, doors, windows, interior trim, chassis components, rust repair guidance
Maintenance:
Routine maintenance, oil changes, filter replacements, fluid checks, lubrication, tune-ups
Troubleshooting:
Diagnostic procedures for common problems, fault finding charts
Repair:
Step-by-step repair instructions for all major components and systems
Disassembly Reassembly:
Detailed instructions for component removal and installation
Specifications Data:
Torque specifications, clearances, fluid capacities, electrical resistance values
Depth:
Comprehensive: Covers basic maintenance to full engine and transmission rebuilds, including detailed electrical troubleshooting.
Diagrams Illustrations:
Includes numerous detailed pictures and diagrams for visual guidance.
Engine Code Family:
M10/M20 (depending on specific 518 variant)
Engine Type 518:
Inline-4 Cylinder (M10) or Inline-6 Cylinder (M20) depending on market and specific model year of the 518 designation.
Displacement 518I:
Approximately 1.8 Liters (1766cc) for early models, later 518i (in some markets) used the M20 1.8L Inline-6 (1771cc).
Horsepower 518:
Typically in the range of 90-105 hp, depending on engine and market.
Torque 518:
Approximately 140-150 Nm, depending on engine and market.
Fuel Delivery:
Carbureted (e.g., Solex, Pierburg) for early non-'i' models, Bosch L-Jetronic or Motronic fuel injection for 'i' models.
Era Safety Standards:
Designed to meet 1980s safety standards, including crumple zones and safety cage construction.
Braking System:
Front ventilated discs, rear solid discs (standard on most models).
Seatbelts:
Three-point seatbelts (front), two-point or three-point (rear depending on year/spec).
Steering Column:
Collapsible steering column.
Oil Change Interval:
Typically every 7,500 - 15,000 km (4,500 - 9,000 miles) or annually, depending on driving conditions and oil used. Consult specific manual for exact intervals.
Tune Up Interval:
Spark plug replacement, ignition system checks typically every 30,000 - 40,000 km (18,000 - 24,000 miles).
Engine Oil Type:
API SG or SH, SAE 15W-40, 10W-40, or 5W-30 depending on climate and manufacturer recommendations. Manual will specify exact BMW approval numbers.
Coolant Type:
Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid.
Transmission Fluid Manual:
GL-4 or GL-5 gear oil, viscosity to be specified in the manual (e.g., 75W-90).
Transmission Fluid Automatic:
ATF Dexron II or equivalent. Manual will specify exact type and capacity.
Rust Prone Areas:
Wheel arches, rocker panels, door bottoms, battery tray, rear shock mounts.
Electrical Gremlins:
Age-related issues with wiring harnesses, fuse boxes, and connector degradation are common.
Engine Maintenance:
Timing belt (if applicable for M20), fuel injectors, idle control valves, and cooling system hoses require regular attention.
Bmw Philosophy:
BMW's legacy of 'The Ultimate Driving Machine' was firmly established by this era, emphasizing performance and engineering.
E28 Development:
The E28 was an evolution of the E12 chassis, featuring updated styling, improved aerodynamics, and more advanced technology.
Production Years E28:
1981-1988
Manufacturing Locations:
Primarily Germany (Dingolfing plant).
