Reputation:
Renowned for build quality, driving dynamics, and technological advancements of its era.
Key Competitors:
Mercedes-Benz W123/W124, Audi 100, Volvo 240/740, Cadillac Seville, Lincoln Continental.
Design Philosophy:
Classic BMW ' Hofmeister kink' design, driver-focused ergonomics, balanced weight distribution.
Powertrain Innovation:
Introduction of the M20 and M21 diesel engines, advanced fuel injection systems for the time.
Powertrain:
Engine mechanical, fuel system (EFI, diesel injection), cooling system, exhaust system, ignition system, transmission (manual and automatic), driveline, differential.
Chassis:
Suspension (front struts, rear semi-trailing arms), steering system (power steering), braking system (ABS availability), wheels and tires.
Electrical:
Wiring diagrams, starter system, charging system, lighting, instrumentation, climate control, power accessories (windows, mirrors, locks), cruise control, EATC (Electronic Automatic Temperature Control).
Body:
Body and frame, exterior trim, interior trim, seats, glass, sunroof, doors, hood, trunk lid.
Maintenance:
Scheduled maintenance, oil changes, fluid checks and changes, filter replacements, spark plug replacement, belt inspections and replacement.
Repair:
Engine overhaul, cylinder head removal/installation, piston/connecting rod service, crankshaft service, transmission rebuilds, clutch replacement, brake caliper/rotor service, shock absorber/strut replacement, power steering pump replacement.
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, testing procedures for electrical components, fuel system pressure testing, diagnostic trouble codes (where applicable).
Component Removal Installation:
Detailed step-by-step instructions for removing and installing all major components and sub-assemblies.
Depth:
Comprehensive, covering basic to advanced repair and overhaul procedures. Suitable for professional technicians and experienced DIY enthusiasts.
528E:
M20B27 'Eta' inline-6, 2.7L, 121 hp @ 4250 rpm, 170 lb-ft @ 3250 rpm. Known for exceptional low-end torque and fuel efficiency.
524Td:
M21D24 turbodiesel inline-6, 2.4L, 115 hp @ 4800 rpm, 175 lb-ft @ 2400 rpm. One of BMW's early successful turbodiesel offerings.
533I:
M30B32 inline-6, 3.2L, 197 hp @ 5500 rpm, 211 lb-ft @ 3500 rpm. Performance-oriented variant.
535I:
M30B34 inline-6, 3.4L, 215 hp @ 5700 rpm, 224 lb-ft @ 4000 rpm. Flagship gasoline model of the E28 generation.
Acceleration 0 60:
Varies by engine, typically 8-10 seconds for 535i.
Injection Type:
Bosch L-Jetronic or Motronic EFI (gasoline), Bosch VE rotary injection pump (diesel).
Fuel Type:
Unleaded gasoline (87 octane or higher), Diesel fuel.
Transmission Type:
Getrag 260 5-speed manual (common on most models). Getrag 265/6 6-speed manual was a rare option or for specific markets/performance models.
Transmission Type:
ZF 3 HP-22 3-speed automatic, ZF 4 HP-22 4-speed automatic (with lock-up torque converter).
Clutch:
Hydraulically actuated single dry plate clutch for manual transmissions.
Automatic Modes:
Automatic transmissions often featured 'Economy' and 'Sport' modes.
Length:
Approx. 187.4 inches (4760 mm)
Width:
Approx. 69.1 inches (1755 mm)
Height:
Approx. 55.1 inches (1400 mm)
Wheelbase:
Approx. 104.3 inches (2650 mm)
Curb Weight:
Approx. 3100-3400 lbs (1400-1550 kg), depending on engine and options.
NHTSA Rating:
Not rated under modern NHTSA standards due to era of manufacture.
ABS:
Anti-lock Braking System (ABS) available on later models and higher trims.
Traction Control:
Automatic Stability Control (ASC) was introduced on some late E28 models.
Airbags:
Driver airbag became standard in later production years. Passenger airbag was a rare option.
Seatbelts:
Three-point seatbelts in the front and rear.
Construction:
Unitized body construction with crumple zones.
Audio System:
Factory cassette player with optional CD changer. Speakers often located in doors and rear parcel shelf.
Climate Control:
Manual climate control or optional EATC (Electronic Automatic Temperature Control) with digital display and automatic fan/temperature regulation.
Cruise Control:
Standard cruise control on most models, operated via a steering column stalk.
Phone Integration:
No factory integrated Bluetooth or smartphone connectivity; aftermarket solutions available.
Oil Change:
Every 5,000-7,500 miles or 6-12 months, whichever comes first.
Transmission Fluid:
Manual: Inspect, change every 50,000-100,000 miles. Automatic: Change fluid and filter every 30,000-60,000 miles.
Coolant Flush:
Every 2-3 years or 30,000-50,000 miles.
Engine Oil:
API SN/SP or ACEA A3/B4, SAE 10W-40 or 15W-50 (depending on climate). Check manual for specific grade.
Manual Transmission Fluid:
BMW MTF LT-2 or equivalent GL-4 manual transmission fluid (e.g., Red Line MT-90).
Automatic Transmission Fluid:
Dexron III/Mercon equivalent (for 3 HP-22 and 4 HP-22). Consult manual for exact type.
Engine:
Head gasket leaks (especially M30), oil pan gasket leaks, timing chain guides (M20/M21), injector seals (diesel), fuel distributor issues (M1.3 Motronic).
Cooling System:
Radiator leaks, water pump failures, thermostat housing leaks, expansion tank cracks.
Electrical:
Corroded wiring connectors, faulty fuel pumps, intermittent gauge operation, door lock actuator failures, ABS sensor failures.
Suspension Steering:
Worn control arm bushings, worn ball joints, leaky power steering hoses, worn tie rod ends.
Common Parts:
Many common wear items are still available, but some specialized components may be scarce or require sourcing from specialist suppliers.
Bmw Legacy:
BMW's reputation for 'The Ultimate Driving Machine' was solidified with models like the E28, emphasizing performance, engineering, and driver engagement.
Predecessor:
BMW E12 5 Series (1972-1981).
Successor:
BMW E34 5 Series (1988-1996).
Production Years:
1981-1988.
Manufacturing Locations:
Mainly Dingolfing, Germany. Also produced under license in other countries.
Key Variants:
M535i (performance variant), Alpina B9/B10 variants.
