Market Position:
The BMW E30 3 Series, particularly the 320i, was a benchmark in the compact executive sedan market, offering a blend of sporty handling, refined engineering, and premium appeal. This manual targets owners and independent workshops seeking to maintain and repair these classic vehicles.
Competitive Analysis:
Competed against vehicles like the Mercedes-Benz 190E, Audi 80/90, and Alfa Romeo 75. The E30 was lauded for its driving dynamics and build quality.
Key Features:
User-friendly layout, step-by-step instructions, detailed diagrams and illustrations, comprehensive coverage of all vehicle systems, essential for maintaining the classic BMW driving experience.
Coverage Areas:
All mechanical and electrical systems, bodywork, interior, maintenance, troubleshooting, diagnostics, and repair.
Page Count:
Estimated 1000+ pages (typical for comprehensive workshop manuals)
Manual Type:
Professional Workshop Service & Repair Manual
Format:
Downloadable Digital Format (likely PDF)
Engine:
Complete overhaul, fuel injection (Bosch Motronic), ignition system, cooling system, lubrication system, exhaust system, engine diagnostics.
Transmission:
Manual transmission (Getrag 260) and automatic transmission (ZF 4HP22), clutch, driveshaft, differential, axle shafts.
Brakes:
Front disc brakes, rear drum brakes (or optional rear disc for later models), brake system hydraulics, ABS (if equipped), parking brake.
Suspension Steering:
Front MacPherson struts, rear semi-trailing arms, shock absorbers, springs, ball joints, tie rods, steering rack, power steering system.
Electrical:
Wiring diagrams, battery, alternator, starter, lighting system, instrument cluster, fuse box, relays, power windows, central locking, radio.
Bodywork Chassis:
Body panel removal/installation, frame specifications, doors, hood, trunk, bumpers, interior trim, sound deadening.
Maintenance:
Oil changes, filter replacements, spark plug service, coolant flushes, brake fluid replacement, belt checks and replacement, lubrication points.
Troubleshooting:
Diagnostic flowcharts, fault code interpretation (where applicable), symptom-based problem solving.
Repair:
Engine rebuild procedures, transmission overhaul, brake caliper rebuild, suspension component replacement, electrical component repair.
Diagnostics:
Component testing, sensor readings, fuel pressure testing, compression testing, electrical circuit testing.
Technical Depth:
Comprehensive from basic fluid changes to complete engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.
File Format Details:
High-resolution PDF, searchable text, bookmark functionality for easy navigation, printable pages.
Print Quality:
Professional quality, clear diagrams and text, suitable for printing.
Binding Type:
N/A (Digital Download)
Paper Type:
N/A (Digital Download)
Engine Type:
Inline 6-cylinder, 24-valve (SOHC)
Displacement:
1990 cc (2.0 Liters)
Bore X Stroke:
80.0 mm x 66.0 mm
Compression Ratio:
8.8:1 or 9.4:1 (depending on market and specific engine variant)
Horsepower:
Approximately 129-137 hp (DIN) at 6000 rpm
Torque:
Approximately 174-180 Nm (128-133 lb-ft) at 4300 rpm
Fuel System Type:
Bosch LE-Jetronic or Motronic fuel injection
Fuel Type:
Unleaded gasoline (RON 95 recommended)
Engine Oil Capacity:
Approx. 4.25 liters (4.5 US quarts) with filter change
Standard Transmission:
5-speed manual (Getrag 260)
Optional Transmission:
4-speed automatic (ZF 4HP22)
Clutch Type:
Single dry plate, hydraulically actuated
Manual Transmission Fluid:
API GL-4 SAE 75W-90 (or equivalent)
Automatic Transmission Fluid:
Dexron III (or equivalent)
Length:
Approx. 4340 mm (170.9 in)
Width:
Approx. 1640 mm (64.6 in)
Height:
Approx. 1380 mm (54.3 in)
Wheelbase:
Approx. 2570 mm (101.2 in)
Curb Weight:
Approx. 1220-1280 kg (2690-2820 lbs)
Gross Vehicle Weight:
Approx. 1700 kg (3748 lbs)
Fuel Tank Capacity:
Approx. 55 liters (14.5 US gallons)
Crash Test Ratings:
As this is a pre-airbag era vehicle, formal crash test ratings from modern agencies are not directly comparable. However, the E30 chassis was known for its robust construction and safety cage.
Active Features:
Power-assisted steering, disc/drum brake system, limited-slip differential (optional).
Passive Features:
Safety cage construction, crumple zones, padded dashboard, three-point seatbelts (front), head restraints.
Infotainment Features:
Basic analog radio, cassette player, optional period-specific CD players. Limited connectivity by modern standards.
Driver Assistance Features:
Anti-lock Braking System (ABS) was optional on some models and years.
Connectivity Options:
None by modern definition. Primarily focused on mechanical and electrical functionality.
Oil Change Interval:
Every 10,000-15,000 km (6,000-9,000 miles) or annually, whichever comes first (depending on driving conditions).
Spark Plug Replacement:
Every 30,000-40,000 km (20,000-25,000 miles).
Coolant Replacement Interval:
Every 2 years or 40,000 km (25,000 miles).
Timing Belt Replacement:
Every 60,000-100,000 km (37,000-60,000 miles) or 5-7 years for M20 engines.
Coolant Type:
BMW-approved antifreeze/coolant (G48 or equivalent) mixed 50/50 with distilled water.
Brake Fluid:
DOT 4 (or DOT 3 if specified by BMW for the specific model year).
Power Steering Fluid:
ATF Dexron II/III or CHF 11S (refer to manual for exact specification).
Known Issues:
Cracked dashboards, sagging headliners, coolant expansion tank leaks, rear trailing arm bushing wear, fuel pump failures, starter motor issues, occasional vacuum leaks, seized heater control valves.
Oil Filter Part Number Example:
Mann-Filter W920/17, Mahle OX 155D, or OEM 11 42 1 730 245
Air Filter Part Number Example:
Mann-Filter C2526/1, Mahle LX32
Brand Heritage:
BMW, founded in 1916, has a long-standing reputation for producing premium, driver-focused vehicles with a strong emphasis on engineering and performance. The 'Ultimate Driving Machine' slogan was cemented with models like the E30.
Model Evolution:
The E30 was the second generation of the 3 Series, succeeding the E21. It introduced a more refined chassis, independent rear suspension, and a wider range of engine options, solidifying its position as a benchmark sports sedan. The 320i was a popular entry-level model in many markets.
Production Years:
1982-1994 (E30 platform)
Manufacturing Locations:
Germany, South Africa, USA, Mexico.
Sales Figures:
Over 2.3 million E30s were produced globally across all body styles and variants.
