Class Segment:
Executive Sedan
Target Market:
Affluent individuals seeking a blend of luxury, performance, and engineering prowess.
Key Competitors:
Mercedes-Benz W123/W124, Audi 100, Jaguar XJ6.
Design Philosophy:
Understated elegance, driver-focused ergonomics, robust engineering.
Reputation:
Known for its superior handling, build quality, and reliable straight-six engines.
Engine:
Complete engine service, overhaul, troubleshooting, tuning.
Fuel System:
Fuel injection system (Bosch L-Jetronic), fuel pump, injectors, fuel lines, fuel tank.
Ignition System:
Ignition timing, spark plugs, coils, distributor, electronic control unit (ECU).
Cooling System:
Radiator, fan, water pump, thermostat, coolant hoses, heater core.
Exhaust System:
Exhaust manifold, catalytic converter (if applicable for region/year), muffler, exhaust pipes.
Transmission:
Manual and Automatic transmission service, repair, fluid changes, clutch operation.
Drivetrain:
Driveshafts, CV joints, differential, rear axle.
Suspension:
Front and rear suspension components, shock absorbers, struts, control arms, bushings, springs.
Steering:
Steering rack, power steering pump, steering column, tie rods.
Brakes:
Front and rear disc brakes, brake calipers, master cylinder, brake lines, parking brake.
Electrical System:
Battery, alternator, starter motor, wiring diagrams, lighting, fuses, relays, dashboard instrumentation.
Climate Control:
Heater, ventilation, air conditioning (HVAC) system components and service.
Body And Chassis:
Body panel repair, door mechanisms, glass replacement, chassis lubrication, rust prevention.
Diagnostic Troubleshooting:
Systematic troubleshooting guides for common and uncommon problems.
Maintenance:
Oil changes, filter replacements, fluid checks, tune-ups, belt replacement.
Repair:
Step-by-step repair instructions for all major mechanical and electrical components.
Overhaul:
Complete engine and transmission overhaul procedures.
Disassembly Reassembly:
Detailed instructions for complete disassembly and reassembly of components.
Technical Specifications:
Torque values, clearances, fluid capacities, electrical resistance values.
Wiring Diagrams:
Comprehensive electrical system wiring diagrams for all systems.
Depth:
In-depth technical information, suitable for complete rebuilds.
Engine Code:
M30B32 (likely for the 528i, though E28 also used M30B28)
Engine Type:
SOHC Inline 6-Cylinder
Displacement:
2.8 Liters (2788 cc) or 3.2 Liters (3200 cc) depending on specific model year and market.
Horsepower:
Approx. 181 hp @ 5800 rpm (for M30B32) or 170 hp @ 5800 rpm (for M30B28).
Torque:
Approx. 214 lb-ft @ 3500 rpm (for M30B32) or 195 lb-ft @ 3500 rpm (for M30B28).
Fuel Injection:
Bosch L-Jetronic electronic fuel injection.
Fuel Type:
Unleaded Gasoline
ECU:
Engine Control Unit (ECU) for fuel and ignition management.
Oil Change Interval:
Every 5,000-7,500 miles or 6-12 months, depending on driving conditions.
Spark Plug Replacement:
Approximately every 20,000-30,000 miles.
Timing Belt Replacement:
Not applicable, uses a timing chain.
Engine Oil Type:
API SG/SH rated, SAE 20W-50 or 15W-40 for most conditions (refer to manual for specific climate recommendations).
Engine Oil Capacity:
Approx. 5.5 Liters (5.8 US Quarts) with filter change.
Coolant Type:
BMW Blue Antifreeze/Coolant or equivalent (ethylene glycol based) at a 50/50 mix with distilled water.
Transmission Fluid Type Manual:
GL-4 SAE 75W-90 or 80W-90 gear oil.
Transmission Fluid Type Automatic:
Dexron III ATF or equivalent.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid.
Common Issues:
Cooling system leaks (hoses, radiator), vacuum hose deterioration, fuel distributor issues, rust in common areas (wheel wells, rockers), wear on suspension bushings, electrical component aging.
Brand Legacy:
BMW's reputation for engineering excellence and 'Ultimate Driving Machine' ethos.
E28 Generation:
The E28 was the second generation of the 5-Series, succeeding the E12 and preceding the E34. Introduced in 1981.
Design Influence:
Designed by Klaus Kapitza, featuring a sharper, more angular aesthetic than its predecessor.
Manufacturing Locations:
Primarily produced in Dingolfing, Germany.
Key Variants:
518i, 520i, 524d, 524td, 525i, 528i, 535i, M535i, M5 (E28S38).
