Heating, Ventilation, and Air Conditioning: Blower motor, heater core, evaporator core, refrigerant system, controls, diagnosis.
Procedures Included
Maintenance:
Oil change intervals, fluid checks and changes (coolant, brake fluid, power steering fluid, transmission fluid, differential fluid), filter replacements (oil, fuel, air), spark plug replacement, belt inspection and replacement, battery maintenance.
Repair:
Engine rebuild procedures, cylinder head removal and installation, gasket replacement, component replacement (alternator, starter, fuel pump, water pump, thermostat), transmission overhaul, clutch replacement, brake caliper and rotor replacement, suspension component replacement, steering box adjustment/replacement.
Diagnostics:
Troubleshooting common issues, diagnostic trouble codes (if applicable to this era), fuel injection system diagnosis, ignition system diagnosis, electrical system fault finding, diagnostic charts, symptom-based troubleshooting.
Complete electrical system wiring schematics for all major systems, including engine management, lighting, accessories, and comfort features.
Technical Depth
Depth:
Comprehensive, covering routine maintenance to full engine and transmission rebuilds. Detailed torque specifications, clearances, and diagnostic procedures.
📊 Manual Specifications
File Format
Digital Format:
PDF, High-Resolution Scans
Searchability:
Searchable Text Layer Included
Print Quality
Scan Quality:
Clear, legible text and diagrams. Original factory printing quality preserved.
Binding Type
Binding:
N/A (Digital Format)
Paper Type
Paper Type:
N/A (Digital Format)
⚙️ Engine Specifications
Primary Engine
Engine Type:
Naturally Aspirated Inline-6 Cylinder
Displacement:
2.8 Liters (2788 cc)
Bore X Stroke:
86.0 mm x 80.0 mm
Compression Ratio:
8.8:1
Valvetrain:
SOHC (Single Overhead Camshaft), 2 Valves per Cylinder
Performance
Horsepower:
181 hp @ 5800 rpm (approx.)
Torque:
230 Nm (169 lb-ft) @ 4000 rpm (approx.)
Fuel System
Injection System:
Bosch L-Jetronic Electronic Fuel Injection
Fuel Type:
Unleaded Gasoline (Premium Recommended)
Ignition System
Ignition Type:
Electronic Ignition System (Distributor-based)
Cooling System
Cooling Type:
Water-Cooled, Thermostatically Controlled
🔧 Transmission
Standard
Transmission Type:
Getrag 260 5-speed Manual
Optional
Transmission Type:
ZF 4HP22 4-speed Automatic
Features
Clutch Type:
Hydraulically Actuated Single Dry Plate (Manual)
Automatic Features:
Lock-up torque converter in 3rd and 4th gear for improved efficiency.
Fluid Specs
Manual Transmission Fluid:
BMW MTF LT-2 or equivalent (e.g., Pentosin MTF.2)
Automatic Transmission Fluid:
Dexron III or equivalent (BMW Part No. 83 22 9 407 870)
📐 Dimensions
Exterior
Length:
4744 mm (186.8 in)
Width:
1700 mm (66.9 in)
Height:
1410 mm (55.5 in)
Wheelbase:
2795 mm (110.0 in)
Weights
Curb Weight Manual:
1480 kg (3263 lbs)
Curb Weight Automatic:
1520 kg (3351 lbs)
Gross Vehicle Weight Rating:
2000 kg (4409 lbs)
Payload Capacity:
520 kg (1146 lbs)
Towing Capacity:
1500 kg (3307 lbs) (Braked)
Wheels And Tires
Standard Wheel Size:
14-inch or 15-inch Alloy Wheels
Standard Tire Size:
205/60R14 or 205/55VR15
Wheelbase Bolt Pattern:
5x120
Wheel Offset:
ET15 to ET22 (depending on wheel size)
🛡️ Safety Features
Ratings
Crash Test Data:
Limited official crash test data for this specific year from modern agencies. E28 platform generally considered robust for its era.
Active Features
ABS:
Standard on 528i models (Bosch ABS II system).
Passive Features
Airbags:
Driver's side airbag became optional/standard later in the E28 production run, availability for 1987 may vary by market/option.
Seat Belts:
3-point inertia-reel seat belts front and rear.
Body Structure:
Reinforced safety cage, crumple zones.
💡 Technology Features
Infotainment
Audio System:
Factory AM/FM Cassette Stereo System (Brand varied, e.g., Blaupunkt, Becker). Optional CD player may have been available late in production or aftermarket.
Speakers:
Typically 4 to 6 speakers (door, rear parcel shelf).
Driver Assistance
Cruise Control:
Standard or optional depending on market and trim. Electronically controlled.
Connectivity
Phone Integration:
Not available (designed pre-mobile phone era).
🔧 Maintenance
Service Intervals
Oil Change:
Every 5,000 - 7,500 miles (8,000 - 12,000 km) or 6-12 months, whichever comes first.
Air Filter:
Inspect every 15,000 miles (24,000 km), replace as needed.
Fuel Filter:
Replace every 30,000 miles (48,000 km).
Spark Plugs:
Replace every 30,000 miles (48,000 km) with appropriate NGK or Bosch plugs.
Coolant Flush:
Every 2 years or 30,000 miles (48,000 km).
Brake Fluid Flush:
Every 2 years, regardless of mileage.
Fluid Specifications
Engine Oil:
API SG or higher, SAE 15W-40 or 20W-50 recommended (check manual for precise spec).
Engine Oil Capacity:
6.5 Liters (6.9 US Quarts) with filter change.
Coolant:
50/50 mix of BMW Blue/Green Antifreeze and distilled water.
Power Steering Fluid:
ATF Dexron II/III or Pentosin CHF 11S (check manual).
Known Issues
Engine Common Issues:
Oil leaks from valve cover and oil pan gaskets, coolant hose failures, occasional injector issues, AFM (Air Flow Meter) problems.
BMW's reputation for building driver-focused, high-quality sedans with sporting capabilities.
Model Evolution
E28 Generation:
The E28 generation, produced from 1981 to 1988, was the second generation of the 5 Series. It evolved from the E12, featuring improved aerodynamics, more advanced technology, and revised suspension.
528I Placement:
The 528i represented the mid-to-high end of the E28 range, offering a potent inline-six engine known for its smoothness and durability.
Production
Production Years E28:
1981-1988
Manufacturing Locations:
Germany (Dingolfing), South Africa, other assembly plants.
🏆 Awards & Recognition
Recognitions
E28 Reputation:
The E28 generation was critically acclaimed for its blend of performance, luxury, and refinement, often cited as one of the best handling sedans of its time. Considered a modern classic.
Ratings
Road Test Reviews:
Contemporary reviews praised its potent engine, precise steering, and comfortable ride. Often compared favorably to its German competitors.
Certifications
Manual Quality:
Factory certified documentation, providing the most accurate and detailed technical data.
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