Covered Years:
1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991
Generation Years:
1982-1994 (global, E30 platform)
Segment:
Compact Executive Sedan/Coupe/Convertible
Target Demographic:
Enthusiasts seeking a sporty, reliable, and well-built European automobile.
Competitors:
Mercedes-Benz W201 (190E), Audi 80/90, Alfa Romeo 75, Volvo 240, Saab 900
Design Philosophy:
Classic BMW driving dynamics, build quality, and understated elegance.
Manual Value:
Essential for maintaining the longevity and performance of the E30 platform.
Powertrain:
Engine, Fuel System, Cooling System, Exhaust System, Drivetrain (Transmission, Driveshafts)
Chassis:
Suspension (Front & Rear), Steering System, Brakes (Hydraulic & Parking), Wheels & Tires
Electrical:
Battery, Charging System, Ignition System, Lighting, Instrumentation, Wiper/Washer, Horn, Power Accessories, ECU Diagnostics
Body:
Body Panels, Doors, Windows, Seats, Interior Trim, Body Sealing, Paint
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, lubrication
Troubleshooting:
Diagnostic charts, symptom-based troubleshooting for various systems
Repair:
Component removal, disassembly, inspection, repair, reassembly, and installation for most systems
Adjustments:
Valve adjustments, idle speed settings, brake adjustments
Diagnostics:
Basic electrical checks, fuel pressure testing, ignition timing verification, fault code reading (where applicable)
Depth:
Comprehensive: Covers everything from routine maintenance and adjustments to major component overhauls and in-depth diagnostics.
Target Audience:
Professional technicians and experienced DIY mechanics
Engine Code:
M10 (specific variants apply, e.g., M10B18)
Engine Type:
Inline 4-cylinder, SOHC (Single Overhead Camshaft)
Displacement:
1.8 Liters (1766 cc)
Horsepower Range:
Approximately 100-105 hp @ 5800-6000 rpm (depending on specific market and tuning)
Torque Range:
Approximately 103-106 lb-ft @ 3250-3700 rpm (depending on specific market and tuning)
Fuel Delivery:
Bosch L-Jetronic or Motronic fuel injection
Fuel Type:
Unleaded gasoline (Octane rating specified in manual)
Coolant Type:
Ethylene Glycol based coolant (BMW recommends specific formulation)
Coolant Capacity:
Approx. 7.0 Liters (14.8 US pints)
Oil Type:
Refer to manual for specific viscosity (e.g., 15W-40, 20W-50 often recommended for M10 engine)
Oil Capacity:
Approx. 4.5 Liters (9.5 US pints) with filter change
Ignition Type:
Electronic ignition with distributor
Transmission Type:
4-speed manual transmission
Transmission Type:
3-speed automatic transmission (ZF 3HP22)
Clutch Type:
Dry single-plate clutch
Manual Fluid Type:
GL-4 Gear Oil (e.g., SAE 75W-90 or 80W-90)
Automatic Fluid Type:
Dexron III (or equivalent ATF)
Length:
Approx. 4357 mm (171.5 in) for Sedan
Width:
Approx. 1676 mm (66.0 in)
Height:
Approx. 1380 mm (54.3 in) for Sedan
Curb Weight:
Approx. 1200 kg (2645 lbs) for Sedan
Gross Vehicle Weight:
Refer to vehicle plate or manual for specific GVWR
Trunk Capacity:
Approx. 425 Liters (15.0 cu ft) for Sedan
Crash Test Data:
No standardized NHTSA/IIHS ratings for this era in the modern sense. Refer to manual for BMW's internal safety design principles.
Brakes:
Front: Ventilated Disc; Rear: Disc. ABS available on later models/options.
Steering:
Recirculating ball steering, power steering optional/standard depending on market and trim.
Seatbelts:
3-point front seatbelts, rear seatbelts (lap belts in some early models).
Body Construction:
Reinforced safety cell, crumple zones.
Audio System:
Factory-installed AM/FM radio with cassette player, often with upgraded speaker options.
Display:
Basic analog gauges for speed, RPM, fuel, and temperature. Warning lights for system status.
ABS:
Anti-lock Braking System (ABS) was an optional feature, more common on later production years.
Telematics:
None (This era predates modern telematics and infotainment systems.)
Power Features:
Optional power windows, mirrors, and central locking.
Oil Change Interval:
Typically every 5,000-7,500 miles (8,000-12,000 km) or annually, refer to manual for precise recommendation.
Air Filter Replacement:
Every 15,000-20,000 miles (24,000-32,000 km) or as needed based on driving conditions.
Spark Plug Replacement:
Every 20,000-30,000 miles (32,000-48,000 km), depending on plug type.
Brake Fluid:
DOT 3 or DOT 4 (refer to manual for exact specification and change interval)
Coolant:
Ethylene Glycol based, typically a 50/50 mix with distilled water.
Common Wear Items:
Fuel pump, fuel injectors, ignition components (coil, distributor cap/rotor), rear subframe bushings, cooling system components (radiator, hoses), front control arm bushings.
Engine Performance:
M10 engine can develop oil leaks from the front crank seal or valve cover gasket.
Electrical Systems:
Wiring harness degradation, faulty grounds, and aged electrical connectors are common.
Chassis Integrity:
Rust is a significant concern, particularly in the sills, wheel arches, and rear shock towers.
Parts Source:
Many OEM and aftermarket parts are still available, but some specific components may be scarce.
Bmw Legacy:
BMW is renowned for its 'Ultimate Driving Machine' slogan, emphasizing performance, engineering, and driver engagement.
E30 Introduction:
The E30 generation, launched in 1982, succeeded the E21 and became one of BMW's most iconic and successful models, defining the compact executive segment.
318I Positioning:
The 318i represented the entry-level performance offering within the E30 range, offering a balance of efficiency and driving pleasure.
Production Period:
1983-1991 for the 318i model within the E30 lifecycle.
Manufacturing Locations:
Primarily Germany (Munich, Dingolfing), but also South Africa and other assembly plants globally.
Critical Acclaim:
The E30 platform, including the 318i, was widely praised for its handling, build quality, and driver-focused design, earning numerous accolades from automotive publications during its production run.
Collectibility:
Highly regarded by enthusiasts, with certain E30 models (like M3 and Alpina variants) achieving collector status. The 318i is appreciated for its purity and balance.
Driving Dynamics:
Consistently ranked among the best-handling cars of its era.
