🏷️ Basic Information

Make:

BMW

Model:

528i

Model Code:

E28

Production Years Covered:

1981-1988

Engine Code:

M30B28 (various iterations)

👋 Introduction

Market Position:

The BMW 528i (E28) represented BMW's mid-size luxury sedan, positioned as a performance-oriented executive car offering refined handling, a powerful engine, and high-quality construction. It competed with models from Mercedes-Benz (W123/W124 E-Class), Audi, and Cadillac.

Competitive Analysis:

The E28 5-series, particularly the 528i, was lauded for its superior driving dynamics and driver engagement compared to many competitors. Its robust engineering and performance, especially with the M30 engine, made it a favorite among enthusiasts and a benchmark for sport sedans.

Key Features:

Renowned handling, powerful inline-6 engine, driver-focused interior, solid build quality, sophisticated suspension design.

📋 Manual Details

Coverage Areas:

Full mechanical and electrical systems, maintenance, troubleshooting, repair procedures, specifications, and diagrams for the BMW 528i E28 chassis.

Page Count:

Estimated 500-1000+ pages (typical for comprehensive workshop manuals of this era).

Manual Type:

Workshop Repair Service Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Systems Covered:

Engine (M30 inline-6, fuel injection, ignition, cooling, lubrication), Drivetrain (transmission, clutch, driveshaft, differential), Suspension (front & rear, springs, shocks, bushings), Brakes (hydraulic system, calipers, rotors, parking brake), Steering (power steering system, steering column), Electrical System (battery, alternator, starter, lighting, fuses, relays, wiring diagrams), Fuel System (tank, pump, lines, injectors), Exhaust System, Climate Control, Body & Chassis, Interior Components, Diagnostics & Troubleshooting.

Procedures Included:

Routine maintenance (oil changes, filter replacements, spark plugs, belts), component removal and installation, engine overhaul, transmission overhaul, brake system service, suspension component replacement, steering system repair, electrical diagnostics, fuel system cleaning and repair, heating and A/C system service, body panel alignment and repair, troubleshooting common issues, diagnostic fault codes (where applicable).

Technical Depth:

Comprehensive. Covers everything from basic preventative maintenance to in-depth component overhaul and advanced diagnostic procedures, including torque specifications, timing procedures, and electrical schematics.

📊 Manual Specifications

File Format:

PDF

Print Quality:

High-resolution scans suitable for printing or digital viewing, preserving original diagrams and clarity.

Binding Type:

N/A (Digital PDF Download)

Paper Type:

N/A (Digital PDF Download)

⚙️ Engine Specifications

Primary Engine:

M30B28 inline-6, SOHC, 12-valve

Horsepower:

Approximately 182-184 hp @ 5800 rpm (depending on market and specific version)

Torque:

Approximately 203-207 lb-ft @ 4500 rpm (depending on market and specific version)

Fuel System:

Bosch L-Jetronic or Motronic fuel injection

Displacement:

2.8 Liters (2788 cc)

Engine Codes Variations:

M30B28 (primary engine for 528i, though other M30 variants like 3.2L were in other models of the E28)

Cooling System:

Pressurized coolant system with fan and thermostat.

Lubrication System:

Wet sump with oil pump and oil filter.

🔧 Transmission

Standard Transmission:

4-speed manual (ZF S4-18/3, later Getrag 260 5-speed became more common)

Optional Transmission:

3-speed automatic (ZF 3HP22)

Features:

Rear-wheel drive, robust construction, often featuring a limited-slip differential as an option.

Transmission Fluid Manual:

GL-4 gear oil (e.g., Castrol EP 75W/90, Pentosin).

Transmission Fluid Automatic:

Dexron III (or equivalent)

📐 Dimensions

Length:

Approx. 4719 mm (185.8 in)

Width:

Approx. 1700 mm (66.9 in)

Height:

Approx. 1410 mm (55.5 in)

Wheelbase:

Approx. 2795 mm (110.0 in)

Curb Weight:

Approx. 1400-1500 kg (3086-3307 lbs), depending on transmission and options.

Trunk Capacity:

Approx. 460 liters (16.2 cu ft)

🛡️ Safety Features

Safety Ratings:

While official crash test ratings from modern agencies (NHTSA, IIHS) are not directly applicable to vehicles of this era, the E28 was built with a focus on structural integrity and passive safety features for its time.

Active Features:

Four-wheel disc brakes (ventilated front), power-assisted steering, ABS (optional on later models).

Passive Features:

Reinforced passenger cell, crumple zones, padded dashboard, seatbelts (three-point front, two-point rear initially, later three-point rear).

💡 Technology Features

Infotainment Features:

Basic AM/FM radio, cassette player, optional upgraded sound systems. Analog gauges and controls.

Driver Assistance Features:

Limited by modern standards. Optional ABS on later models, power steering, cruise control.

Connectivity Features:

None by modern standards. Primarily mechanical and electrical systems.

🔧 Maintenance

Oil Change Interval:

Recommended every 5,000-7,500 miles or 6-12 months, using synthetic or high-quality conventional oil.

Spark Plug Replacement:

Approximately every 20,000-30,000 miles, depending on plug type (e.g., copper vs. platinum).

Timing Belt Or Chain:

The M30 engine uses a timing chain, which is designed for the life of the engine but may require tensioner inspection and replacement due to wear.

Engine Oil Specification:

API SG or higher, SAE 10W-40 or 15W-40 (check manual for exact viscosity based on temperature).

Coolant Specification:

BMW Blue Antifreeze/Coolant concentrate mixed 50/50 with distilled water.

Brake Fluid Specification:

DOT 3 or DOT 4 brake fluid.

Engine Oil Capacity:

Approx. 6.5 liters (6.9 US quarts) with filter change.

Coolant Capacity:

Approx. 10.5 liters (11.1 US quarts).

Common Issues:

Cooling system component failure (radiator, hoses, water pump), fuel injector seals, fuel pump relays, idle control valve issues, door seal degradation, wiring harness brittleing, rust in common areas (wheel arches, rocker panels), EPROM in ECU failure (Motronic models).

Oil Filter Part Number Example:

Mann-Filter W901/1, Mahle OC153 (Verify specific PN for the vehicle's exact build).

Air Filter Part Number Example:

Mann-Filter C34145, Mahle LX31 (Verify specific PN for the vehicle's exact build).

📚 Vehicle History

Brand Heritage:

BMW has a long-standing reputation for building sporty, luxurious, and technologically advanced vehicles, with a particular emphasis on driving pleasure. The '5 Series' designation signifies BMW's executive sedan offering.

Model Evolution:

The E28 generation succeeded the E12 5 Series and was produced from 1981 to 1988. It featured a more modern design, improved aerodynamics, and updated engineering, including the introduction of the sophisticated Motronic engine management system in later models. The E28 also served as the basis for the highly successful M5 (E28 S38).

Production Locations:

Primarily Dingolfing, Germany.

Production Timeline:

1981-1988

🏆 Awards & Recognition

Recognitions:

The E28 generation was highly regarded for its driving dynamics and build quality, contributing to BMW's reputation as a leading manufacturer of premium, sporty sedans. While specific 'awards' are less common for individual models of this era, its critical reception and enduring desirability are testaments to its excellence.