Positioning:
Premium executive sedan, known for luxury, performance, and build quality.
Competitors:
Mercedes-Benz W123, Audi 5000, Volvo 760.
Distinctive Attributes:
Rear-wheel drive, sophisticated independent suspension, powerful inline-six engine, driver-focused interior.
Owner Profile:
Enthusiasts and owners seeking to maintain or restore their classic BMW.
Engine Mechanical:
Complete overhaul, component testing, specifications, troubleshooting
Engine Management:
Fuel injection (Bosch L-Jetronic), ignition system, emissions control
Transmission Manual:
Service, repair, and overhaul of Getrag 5-speed manual transmission
Transmission Automatic:
Service and repair of ZF 3HP22 automatic transmission (if equipped)
Drivetrain:
Driveshaft, differential, axle shafts
Suspension:
Front struts, rear semi-trailing arms, bushings, shocks, springs
Steering:
Power steering system, steering rack, tie rods
Brakes:
Front ventilated discs, rear discs, hydraulic system, parking brake
Electrical System:
Wiring diagrams, charging system (alternator, starter), lighting, instrumentation
Body And Chassis:
Body panels, doors, windows, interior trim, structural components
HVAC:
Heating, ventilation, and air conditioning system service
Fuel System:
Fuel tank, pump, lines, injectors, fuel pressure regulation
Maintenance Routine:
Oil changes, filter replacements, tune-ups, lubrication
Troubleshooting:
System diagnostics, common fault finding, guided repair steps
Repair Major:
Engine rebuilds, transmission overhaul, suspension component replacement
Diagnosis:
Detailed diagnostic procedures for all major systems
Specifications Torque:
Torque specifications for all critical fasteners
Wiring Diagrams:
Comprehensive electrical system wiring diagrams
Depth:
Comprehensive Factory Level - Suitable for professional technicians and advanced DIYers
Engine Type:
Inline 6-cylinder, SOHC
Displacement:
2788 cc (2.8 Liters)
Horsepower:
170 hp @ 5800 rpm (approximate, may vary slightly by market)
Torque:
240 Nm (177 lb-ft) @ 3500 rpm (approximate)
Injection System:
Bosch L-Jetronic Fuel Injection
Fuel Type:
Unleaded gasoline (Premium)
Cooling Type:
Water-cooled
Ignition Type:
Electronic Ignition
Type:
Getrag 260 5-Speed Manual
Type:
ZF 3HP22 3-Speed Automatic
Drive Type:
Rear Wheel Drive (RWD)
Manual Fluid:
BMW recommends specific MTF (Manual Transmission Fluid), e.g., SAE 75W-90 GL-4 or GL-5 (refer to manual for exact spec).
Automatic Fluid:
ZF requires specific ATF fluid, e.g., Dexron III or equivalent (refer to manual for exact spec).
Crash Testing:
No formal crash test ratings comparable to modern standards for this era.
Seatbelts:
3-point seatbelts in front and rear
Headrests:
Front and rear headrests
Construction:
Reinforced passenger cell, energy-absorbing zones
Brakes:
Four-wheel disc brakes (front ventilated)
Audio System:
Original factory AM/FM radio, often with cassette player. Aftermarket upgrades common.
Navigation:
Not available from factory.
Features:
ABS (Anti-lock Braking System) was optional or standard on some models, basic driver aids.
Features:
No integrated smartphone connectivity or Bluetooth from factory.
Oil Change:
Typically every 5,000-7,500 miles or 6-12 months, depending on driving conditions (refer to manual).
Air Filter:
Inspect every 15,000 miles, replace as needed (refer to manual).
Spark Plugs:
Typically every 30,000 miles (refer to manual for specific type and gap).
Timing Belt Chain:
M30 engine uses a timing chain, designed for the life of the engine; inspect tensioner and guides.
Engine Oil:
API SG/SH, SAE 20W-50 or 10W-40 depending on climate (refer to manual for precise specification).
Coolant:
BMW Blue Antifreeze/Coolant or equivalent ethylene glycol-based coolant (50/50 mix).
Brake Fluid:
DOT 4 Low Viscosity (LV) or DOT 3 brake fluid.
Power Steering Fluid:
ATF (Automatic Transmission Fluid) or CHF 11S depending on system variant (refer to manual).
Common Problems:
Coolant flange leaks, rear main seal leaks, fuel distributor issues (L-Jetronic), worn suspension bushings, rust in common areas (wheel arches, rocker panels).
Preventative Maintenance:
Regular inspection of cooling system components, timely replacement of aging rubber parts, and rust prevention.
Bmw Legacy:
BMW's reputation for building driver-focused, high-performance luxury vehicles.
E28 Introduction:
The E28 chassis replaced the E12 5 Series and introduced a more modern and aerodynamic design.
E28 Key Models:
Included models like the 528i, 533i, and the high-performance M535i and M5.
Production Period:
E28 generation produced from 1981 to 1988.
Manufacturing Locations:
Primarily Germany (Dingolfing Plant).
