Market Segment:
Compact executive sports sedan, renowned for driving dynamics and build quality
Competitors:
Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Volvo 240
Driving Dynamics:
Legendary handling, balanced chassis, rear-wheel drive architecture
Build Quality:
Exceptional German engineering and robust construction
Heritage:
Continuation of BMW's performance-oriented lineage
Engine Mechanical:
Complete disassembly, inspection, repair, and reassembly of all engine components
Engine Management:
Fuel injection (Bosch Motronic), ignition systems, emissions control systems
Transmission:
Manual and automatic transmission overhaul, clutch service, driveline components
Chassis And Suspension:
Front and rear suspension, steering system, wheel bearings, chassis lubrication
Brakes:
Disc brake systems (front and rear), ABS (if equipped), parking brake, hydraulic system
Electrical System:
Wiring diagrams, starter, alternator, battery, lighting, instrumentation, power windows/locks
Body And Interior:
Body panel repair, interior trim removal and installation, HVAC system
Troubleshooting:
Diagnostic charts, symptom-to-cause analysis for common issues
Routine Maintenance:
Oil changes, filter replacements, fluid checks, spark plug replacement
Component Rebuild:
Engine, transmission, differential, brake calipers, starter, alternator
Diagnostics:
Step-by-step diagnostic procedures for electrical and mechanical issues
Adjustments:
Valve adjustments, timing adjustments, idle speed adjustments
Specifications:
Torque specifications for all fasteners, clearances, fluid capacities
Depth:
Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds
Target Audience:
DIY mechanics, professional technicians, restorers
Engine Code Example:
M20 (e.g., 2.5L inline-six)
Engine Configuration:
Inline-four and inline-six cylinder, naturally aspirated
Displacement Common:
2.3L (2300 cc), 2.5L (2500 cc), 2.7L (2700 cc)
Horsepower Range:
Approximately 125 hp (2.3L) to 170 hp (2.5L)
Torque Range:
Approximately 130 lb-ft to 165 lb-ft
Fuel Delivery:
Bosch Motronic electronic fuel injection (EFI)
Fuel Type:
Unleaded gasoline (premium recommended)
Wheelbase E30:
Approx. 104.3 inches (2649 mm)
Length E30 Sedan:
Approx. 170.5 inches (4330 mm)
Width E30:
Approx. 65.7 inches (1670 mm)
Height E30:
Approx. 55.1 inches (1400 mm)
Curb Weight Range:
Approx. 2700 - 3000 lbs (1225 - 1360 kg), depending on engine and options
Gross Vehicle Weight Rating:
Typically around 3700 lbs (1678 kg)
NHTSA Front Impact:
Not rated by modern NHTSA standards, but generally considered safe for its era
ABS:
Anti-lock Braking System (ABS) available as an option, particularly on higher-trim models
Traction Control:
Not typically available on 1987 models
Seatbelts:
Three-point front seatbelts, two-point rear seatbelts
Crumple Zones:
Designed with front and rear crumple zones for energy absorption
Oil Change Interval:
Recommended every 5,000-7,500 miles (8,000-12,000 km) or annually, whichever comes first
Coolant Flush:
Every 2 years or 30,000 miles (48,000 km)
Timing Belt:
The M20 engine uses a timing belt, typically recommended for replacement every 60,000 miles (96,000 km) or 5 years
Engine Oil Type:
API SF or SG rated, SAE 15W-40 or 20W-50 depending on climate. Consult manual for exact viscosity.
Coolant Type:
Ethylene glycol based coolant (50/50 mix with distilled water). BMW blue coolant or equivalent.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid
Transmission Fluid Manual:
GL-4 gear oil, SAE 75W-90 or 80W-90
Transmission Fluid Automatic:
Dexron III ATF (or equivalent)
Cooling System:
Cracked plastic coolant expansion tanks, failing water pumps, hose degradation
Fuel System:
Clogged fuel injectors, failing fuel pumps, diaphragm tears in the fuel distributor (early models)
Electrical:
Corroded ground points, failing alternator voltage regulators, faulty dashboard warning lights
Suspension:
Worn control arm bushings, cracked sway bar links, sagging rear springs
Rust:
Common areas for rust include wheel arches, rocker panels, jacking points, and rear shock towers
Bmw Legacy:
BMW's long history of producing driver-focused vehicles with sporty characteristics
E30 Introduction:
Introduced globally in late 1982 (as a 1983 model), the E30 represented the second generation of the 3 Series
E30 Lifespan:
Produced from 1982 to 1991 (in most markets)
E30 Body Styles:
Available as a 2-door sedan, 4-door sedan, convertible, and limited production M3 (E30 Sport Evolution)
Production Locations:
Primarily Dingolfing, Germany, with some assembly in other locations
