Segment:
Executive Sedan (Luxury Mid-size)
Target Audience:
Enthusiasts, independent repair shops, owners seeking to maintain and repair their classic BMW
Competitors Era:
Mercedes-Benz W124 E-Class, Audi 100/200, Jaguar XJ
Vehicle Appeal:
BMW's renowned driving dynamics, robust inline-six engine, and solid build quality.
Manual Benefit:
Empowers owners to perform maintenance and repairs with confidence, reducing reliance on expensive dealership services.
Powertrain:
Engine (M30B28), Fuel System, Ignition System, Exhaust System, Cooling System, Lubrication System
Drivetrain:
Transmission (Manual and Automatic), Driveshaft, Differential, Axles
Chassis:
Suspension (Front & Rear), Steering System, Brakes (Hydraulic, ABS if applicable)
Electrical:
Wiring Diagrams, Lighting, Instrumentation, Ignition Switch, Battery, Alternator, Starter, Power Windows, Central Locking
Body:
Body Panels, Doors, Hood, Trunk, Interior Trim, Seats, Glass
Climate Control:
Heating, Ventilation, Air Conditioning (HVAC) System
Maintenance:
Oil Change, Filter Replacement, Spark Plug Replacement, Fluid Checks and Replenishments, Belt Inspection and Adjustment
Diagnostics:
Troubleshooting Guides, Fault Code Identification (if applicable), Component Testing Procedures
Repair:
Engine Rebuild, Transmission Overhaul, Brake Caliper Replacement, Suspension Component Replacement, Electrical Component Repair/Replacement
Adjustments:
Valve Adjustments, Carburetor/Fuel Injection Adjustments, Brake Adjustment
Special Tools:
Identification and usage of BMW-specific or recommended special tools
Depth:
Comprehensive (covering all aspects from basic maintenance to full engine and transmission rebuilds)
Diagnostic Level:
Advanced (includes detailed diagnostic flowcharts and component-level testing)
Rebuild Scope:
Full engine and transmission rebuild specifications, including torque values, clearances, and assembly procedures
Engine Type:
Inline-6 Cylinder, SOHC
Displacement:
2.8 Liters (2784 cc)
Horsepower:
Approx. 181 hp @ 5800 rpm (DIN)
Torque:
Approx. 230 Nm (169 lb-ft) @ 3500 rpm (DIN)
Fuel Delivery:
Bosch L-Jetronic Fuel Injection
Octane Rating:
Premium Unleaded Gasoline (91+ RON / 87+ AKI)
Type:
Electronic Ignition (Distributor-based)
Type:
Getrag 260 5-Speed Manual Transmission
Type:
ZF 4HP-22 4-Speed Automatic Transmission
Clutch:
Hydraulically Actuated Single Dry Plate Clutch (Manual)
Manual Transmission Fluid:
BMW approved gear oil (e.g., ATF Dextron II or equivalent for older specs)
Automatic Transmission Fluid:
BMW ATF Fluid (e.g., ATF Dextron III or equivalent)
Era Ratings:
NHTSA and IIHS ratings from this era are less standardized than modern tests; focus is on passive safety features.
Anti Lock Brakes:
Optional ABS (Anti-lock Braking System) available on some models
Seatbelts:
3-point front seatbelts, 2-point rear seatbelts (later models may have 3-point rear)
Body Structure:
Reinforced safety cage, crumple zones
Steering Column:
Collapsible steering column
Audio System:
Factory fitted cassette player with AM/FM radio, optional CD player in later years.
Display:
Analog gauges for speedometer, tachometer, fuel, engine temp. Warning lights for various systems.
Cruise Control:
Optional cruise control system.
Era Connectivity:
Limited to antenna for radio. No modern connectivity options.
Oil Change:
Every 5,000-7,500 miles or 6-12 months (depending on driving conditions)
Spark Plugs:
Inspect every 15,000 miles, replace as needed (typically every 30,000 miles)
Coolant Flush:
Every 2 years or 30,000 miles
Transmission Fluid:
Manual: Inspect periodically, change every 60,000 miles. Automatic: Change fluid and filter every 30,000-50,000 miles.
Engine Oil:
SAE 15W-40 or 20W-50 (depending on climate), API SG or better. Capacity: Approx. 6.0 Liters (6.3 US Quarts) with filter.
Coolant:
50/50 mix of BMW Blue Antifreeze/Coolant and distilled water.
Brake Fluid:
DOT 3 or DOT 4 compatible brake fluid.
Engine M30:
Head gasket leaks, oil pan gasket leaks, valve stem seals, timing chain stretch (though generally robust).
Electrical:
Wiring harness degradation (especially insulation), idle control valve issues, alternator regulator failure.
Suspension:
Worn control arm bushings, ball joints, shock absorbers.
Rust:
Common areas include wheel arches, rocker panels, battery tray, and trunk floor.
Oil Filter:
Examples: Mann-Filter W100/3, Bosch 3415 (verify with parts catalog for specific fitment)
Air Filter:
Examples: Mann-Filter C34130, Mahle LX30 (verify with parts catalog for specific fitment)
Bmw Philosophy:
Sheer Driving Pleasure - emphasis on performance, handling, and driver engagement.
E28 Introduction:
The E28 chassis succeeded the E12 and was produced from 1981 to 1988. The 528i variant was a significant model in this generation.
E28 Updates:
Received minor updates throughout its lifespan, including interior refinements and powertrain enhancements.
Manufacturing Locations:
Germany (Dingolfing plant)
Production Years:
1981-1988 (E28 chassis)
