Model:
3 Series, 5 Series
Covered Models:
316, 316i, 318i, 320i, 325i, 518, 518i, 525i, 528i, 535i, M535i
Product Type:
Automotive Repair Manual (Downloadable)
Generation Name:
E30 (3 Series), E28 (5 Series)
Era Market Position:
The E30 and E28 generations represented BMW's core offering in the premium compact and executive sedan/coupe segments, respectively. They were known for their engaging driving dynamics, build quality, and sporting appeal.
Key Competitors:
3 Series: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75. 5 Series: Mercedes-Benz W124 E-Class, Audi 100/200, Jaguar XJ.
Vehicle Highlights:
Rear-wheel drive chassis, balanced weight distribution, driver-focused interiors, high-revving engines (particularly the M20 inline-six), excellent handling characteristics.
Manual Value Proposition:
Essential resource for owners seeking to maintain, repair, and understand their classic BMW. Provides in-depth technical data beyond basic owner's manuals.
Powertrain:
Engine (M10, M20 families), Fuel System, Ignition System, Exhaust System, Cooling System, Transmission (Manual & Automatic), Drivetrain (Driveshaft, Differential).
Chassis:
Suspension (Front & Rear), Steering System, Brakes (Hydraulic, ABS if applicable), Wheels, Tires.
Electrical:
Wiring Diagrams, Lighting, Starting & Charging System, Ignition, Instruments & Gauges, Climate Control, Power Accessories, ECU & Sensor Diagnostics.
Bodywork:
Body Panels, Doors, Windows, Seats, Interior Trim, Exterior Trim, Bumpers, Seals.
Maintenance:
Scheduled Maintenance Intervals, Oil & Filter Changes, Fluid Replenishments, Belt & Hose Inspections/Replacements, Spark Plug Replacement, Air Filter Service.
Repair And Rebuild:
Complete engine rebuild procedures, transmission overhaul, brake caliper and master cylinder replacement, suspension component replacement, electrical component troubleshooting and repair.
Diagnostics And Troubleshooting:
System-specific fault finding guides, common symptom analysis, diagnostic trouble codes (if applicable for the era), step-by-step troubleshooting flowcharts.
Specifications And Tolerances:
Torque specifications for all fasteners, engine clearances, bearing tolerances, suspension alignment specifications, valve lash settings.
Depth Of Information:
Highly detailed, suitable for professional mechanics and experienced DIY enthusiasts. Covers everything from routine maintenance to complete component overhauls and diagnostics.
Searchability:
Likely text-searchable if OCR'd from original scans, enabling quick information retrieval.
Print Quality:
Digital format; quality is dependent on the source scan. Typically aims for high resolution for clarity of diagrams and text.
Binding Type:
Not applicable (Digital Download)
Paper Type:
Not applicable (Digital Download)
Engine Families:
M10 (4-cylinder), M20 (6-cylinder)
3 Series Engines:
316 (1.8L M10), 316i (1.8L M10, later 1.6L M40), 318i (1.8L M10, later 1.8L M40), 320i (2.0L M20), 325i (2.5L M20).
5 Series Engines:
518/518i (1.8L M10), 525i (2.5L M20), 528i (2.8L M20), 535i (3.4L M30), M535i (3.4L M30).
Typical Horsepower Range:
75 HP (early 316) to 218 HP (M535i).
Typical Torque Range:
105 Nm (early 316) to 290 Nm (M535i).
Fuel Injection Systems:
Bosch L-Jetronic, LE-Jetronic, Motronic (various versions depending on model and year).
Carburetion:
Some early 316 models may have used Solex carburetors.
Standard Transmission Type:
4-speed and 5-speed Manual Transmissions (Getrag).
Optional Transmission Type:
3-speed and 4-speed ZF Automatic Transmissions.
Transmission Features:
Close-ratio gearboxes available on performance models, robust construction for both manual and automatic units.
Crash Test Era Context:
While formal crash test ratings as we know them today were less prevalent and standardized, these vehicles were engineered with a focus on occupant safety for their time, featuring crumple zones and safety cell construction.
Braking System:
Front ventilated discs, rear solid discs (standard). Optional ABS available on higher-trim models.
Passive Safety:
Three-point seatbelts, energy-absorbing steering column, reinforced body structure, safety glass.
Original Infotainment:
Analog gauges, AM/FM radio, cassette player. Higher-end models offered premium sound systems (e.g., Bavaria C, Blaupunkt).
Driver Assistance Features:
ABS (Anti-lock Braking System) on select models, limited electronically controlled features compared to modern vehicles.
Original Connectivity:
None in the modern sense. Focus was on mechanical and electrical integration.
Oil Change Interval:
Typically 7,500 - 10,000 miles (12,000 - 16,000 km) or annually, depending on driving conditions and oil used.
Coolant Flush Interval:
Every 2 years or 30,000 miles (48,000 km).
Timing Belt Replacement:
M20 engines (6-cylinders) require timing belt replacement every 40,000 - 50,000 miles (64,000 - 80,000 km). M10 and M40 engines use chains which have longer service lives but still require inspection.
Engine Oil Specification:
API SF/SG, SAE 10W-40 or 15W-50, depending on climate. Check manual for specific grades.
Coolant Specification:
Ethylene Glycol based antifreeze, mixed with distilled water (50/50 ratio). BMW specifies specific coolants.
Transmission Fluid Manual:
GL-4 Gear Oil (e.g., Castrol TWS 75W-90 or equivalent).
Transmission Fluid Automatic:
Dexron II or Dexron III ATF (check specific model).
Brake Fluid Specification:
DOT 3 or DOT 4 Brake Fluid.
Common E30 E28 Issues:
Cooling system leaks (radiator, hoses, water pump), fuel pump failures, fuel injector issues, instrument cluster failures (pixelation on some later models), rear subframe cracking (E30), differential mounts wear, rust in common areas (wheel arches, sills, battery tray).
Typical Repair Focus:
Suspension bushings, control arms, ball joints, ignition system components (distributor, coils, spark plug wires), fuel injection system servicing.
Bmw Philosophy:
BMW's history is rooted in engineering excellence, performance ('The Ultimate Driving Machine'), and sophisticated design, all of which are hallmarks of the E30 and E28 generations.
E30 Evolution:
Launched in 1982, the E30 3 Series replaced the acclaimed E21. It offered improved handling, more interior space, and a wider range of engine options. Introduced coupes, sedans, convertibles, and wagons (Touring).
E28 Evolution:
Introduced in 1981, the E28 5 Series was a more refined and luxurious evolution of the E12. It was characterized by its sharper styling, improved aerodynamics, and the introduction of the legendary M535i and the first M5 (E28 S38).
Production Period:
E30: 1982-1994 (production ended later in some markets). E28: 1981-1988.
Manufacturing Locations:
Primarily Germany, with some assembly in other international locations.
