Engine:
M10 (4-cylinder, 1.8L) engine system, including fuel, ignition, cooling, lubrication, and emissions control.
Transmission:
Manual and Automatic transmission systems, including clutch, gearbox, driveshafts, and differential.
Suspension:
Front and rear suspension systems, including struts, control arms, springs, shock absorbers, and steering linkage.
Brakes:
Front and rear brake systems, including discs, calipers, master cylinder, brake lines, and parking brake.
Electrical:
Complete electrical system, including battery, alternator, starter motor, ignition system, lighting, instrumentation, and wiring diagrams.
Bodywork:
Body and chassis structural information, including body panel repair, door mechanisms, glass replacement, and interior trim.
Fuel System:
Detailed procedures for fuel pump, injectors, fuel lines, pressure regulator, and fuel filter replacement/service.
Exhaust System:
Information on exhaust manifold, catalytic converter (if applicable), mufflers, and exhaust pipe replacement.
Steering System:
Service and repair of the steering rack, tie rods, steering shaft, and power steering pump/lines.
Body And Interior:
Covers interior trim removal, seat adjustment mechanisms, door lock and window regulator repair, and basic body panel alignment.
Maintenance:
Routine maintenance procedures: oil changes, filter replacements, fluid checks, spark plug replacement, belt adjustments, and tune-ups.
Repair:
Detailed repair procedures for all major mechanical and electrical components, including engine overhaul, transmission rebuild, brake system repair, and suspension work.
Troubleshooting:
Diagnostic procedures and troubleshooting guides for common and uncommon issues, with symptom-based problem diagnosis.
Specifications:
Torque specifications, clearances, timing settings, and other critical technical data for all components.
Diagnostics:
Troubleshooting guides using systematic approaches, including electrical system diagnostics via wiring diagrams.
Depth:
Comprehensive, covering basic maintenance to complete engine and transmission rebuilds. Suitable for professional mechanics and advanced DIY enthusiasts.
Diagrams Illustrations:
Includes detailed exploded views, schematics, and repair illustrations to guide complex procedures.
Engine Type:
Inline-4, Naturally Aspirated
Displacement:
1.8 Liters (1766 cc)
Bore X Stroke:
89.0 mm x 80.0 mm
Compression Ratio:
8.3:1 (typical)
Horsepower:
90-102 hp @ 5000-5800 rpm (depending on market and specific tuning)
Torque:
130-135 Nm (96-99 lb-ft) @ 3000-3200 rpm
Fuel Delivery:
Bosch L-Jetronic or K-Jetronic fuel injection (specific variant may differ)
Fuel Type:
Unleaded Gasoline (Octane rating appropriate for period, e.g., 91 RON)
Ignition Type:
Electronic Ignition (e.g., BMW Electronic Ignition System)
Cooling Type:
Water-Cooled, Pressurized
Oil Capacity:
Approximately 4.5 Liters (4.8 US Quarts) with filter change
Recommended Oil Grade:
e.g., SAE 20W-50 or 15W-40 (consult manual for exact specification based on climate)
Transmission Type Std:
4-speed Manual Transmission
Transmission Type Opt:
3-speed or 4-speed Automatic Transmission (e.g., ZF 3HP22)
Clutch Type:
Single Dry Plate Clutch
Manual Transmission Fluid:
GL-4 Gear Oil (e.g., SAE 75W-90 or 80W-90)
Automatic Transmission Fluid:
Dexron-II (or equivalent)
Audio System:
Factory radio/cassette player (e.g., Blaupunkt or Grundig), often with premium speaker options.
ABS:
Optional on most E28 models, standard on some later higher-spec variants.
HVAC System:
Manual climate control with optional air conditioning and heated rear window.
Headlights:
Halogen headlights, often with integrated fog lights in bumper design.
Oil Change Interval:
Typically every 7,500 - 10,000 miles (12,000 - 16,000 km) or annually, whichever comes first.
Spark Plug Replacement:
Approximately every 20,000 - 30,000 miles (32,000 - 48,000 km) depending on plug type.
Timing Belt Or Chain:
The M10 engine uses a timing chain, which typically does not have a scheduled replacement interval but should be inspected for wear and noise.
Coolant:
BMW Coolant/Antifreeze (50/50 mix with distilled water), typically ethylene glycol based.
Brake Fluid:
DOT 3 or DOT 4 brake fluid.
Power Steering Fluid:
ATF Dexron-II (or equivalent, if equipped with power steering)
Common E28 Issues:
Cooling system leaks (radiator, hoses, water pump), electrical system gremlins (especially wiring harness insulation breakdown), fuel distributor issues (K-Jetronic), rust in common areas (wheel arches, sills, battery tray), differential seals leaking.
Common M10 Engine Issues:
Oil leaks from seals and gaskets, potential timing chain stretch over high mileage, distributor cap and rotor wear.
Bmw Legacy:
BMW, established in 1916, has a long-standing reputation for building sporty, luxurious, and technically advanced vehicles, often referred to as the 'Ultimate Driving Machine'.
E28 Generation:
The E28 is the second generation of the BMW 5 Series, produced from 1981 to 1988. It succeeded the E12 and was replaced by the E34. The E28 featured cleaner styling, improved aerodynamics, and a more sophisticated chassis.
Production Years:
1981-1988 (E28 Generation)
Manufacturing Locations:
Germany (primarily Dingolfing)
