Market Position:
The BMW 3 Series (E30) was a cornerstone of BMW's compact executive car lineup, renowned for its sporty handling and premium feel, appealing to driving enthusiasts and those seeking a refined yet practical vehicle.
Competitors:
Mercedes-Benz 190E, Audi 80/90, Ford Sierra, Alfa Romeo 75.
Key Features:
Rear-wheel drive chassis, balanced weight distribution, driver-focused interior, durable engineering, sporty aesthetics.
Manual Value Proposition:
This comprehensive workshop manual provides essential information for maintaining, diagnosing, and repairing the BMW 316/316i (E30), empowering owners and independent mechanics with the knowledge to keep these classic vehicles in optimal condition.
Engine Mechanical:
Engine removal/installation, cylinder head, crankshaft, pistons, connecting rods, timing system, lubrication system, cooling system.
Engine Management:
Fuel injection system (Bosch Motronic), ignition system, emissions control, sensor diagnostics, ECU.
Transmission:
Manual and Automatic transmission overhaul, clutch, driveshafts, differential.
Suspension:
Front and rear suspension components, shock absorbers, springs, bushings, alignment.
Steering:
Steering rack, power steering system, steering column.
Brakes:
Brake system diagnostics, front/rear brake calipers, rotors, pads, master cylinder, ABS (if equipped).
Electrical System:
Battery, charging system, starter, lighting, wipers, horn, power windows, central locking, fuse box diagrams.
Body And Chassis:
Body panel removal/installation, interior trim, doors, hood, trunk, glass replacement.
HVAC:
Heating, ventilation, and air conditioning system diagnosis and repair.
Maintenance:
Scheduled maintenance (oil changes, filter replacements, spark plugs), fluid level checks, belt inspections.
Troubleshooting:
Diagnostic charts, common fault identification, symptom-based troubleshooting for engine, electrical, and mechanical issues.
Repair:
Step-by-step repair procedures for all major mechanical and electrical components.
Diagnostics:
Detailed diagnostic procedures for engine management systems, including sensor testing and fault code interpretation (where applicable).
Rebuilding:
Comprehensive instructions for engine and transmission rebuilds.
Technical Depth:
Intermediate to Advanced. Covers routine maintenance, component replacement, system diagnosis, and complete overhauls.
Engine Type 316:
Inline 4-cylinder, SOHC
Displacement 316:
1766 cc
Bore X Stroke 316:
89.0 mm x 71.0 mm
Compression Ratio 316:
8.5:1 or 9.5:1 (depending on market/variant)
Horsepower 316:
Approx. 90-102 hp @ 5500-5800 rpm
Torque 316:
Approx. 130-140 Nm (96-103 lb-ft) @ 3250-3500 rpm
Fuel System 316I:
Bosch L-Jetronic or Motronic fuel injection
Fuel Type:
Unleaded gasoline (premium recommended)
Engine Type 316I:
Inline 4-cylinder, DOHC
Displacement 316I:
1796 cc
Horsepower 316I:
Approx. 100-114 hp @ 5600-6000 rpm
Torque 316I:
Approx. 145-150 Nm (107-111 lb-ft) @ 3900-4300 rpm
Fuel System 316I:
Bosch Motronic electronic fuel injection and ignition
Body Styles:
2-door Sedan, 4-door Sedan, Convertible, Touring (Wagon)
Wheelbase:
Approx. 2570 mm (101.2 in)
Overall Length:
Approx. 4325-4380 mm (170.3-172.4 in) depending on body style
Curb Weight:
Approx. 1100-1250 kg (2425-2755 lbs) depending on body style and equipment
Safety Ratings:
Euro NCAP ratings not available for this generation; independently tested to contemporary safety standards. Known for good structural integrity.
Active Safety Features:
ABS (Anti-lock Braking System) optional on some models.
Passive Safety Features:
Reinforced passenger cell, crumple zones, safety belts, padded dashboard.
Infotainment Features:
Basic analog dashboard, optional upgraded stereo systems with cassette player. Limited integration by modern standards.
Driver Assistance Features:
ABS optional. No electronic stability control or advanced driver assistance systems.
Connectivity Features:
N/A (Analog systems, no built-in connectivity)
Oil Change Interval:
Every 7,500-10,000 miles or annually (refer to manual for specific recommendation).
Spark Plug Replacement:
Every 20,000-30,000 miles depending on plug type.
Timing Belt Replacement:
M40 engine (316i) requires timing belt replacement every 40,000-60,000 miles or 3-4 years due to potential failure leading to catastrophic engine damage. M10 engine has a timing chain.
Engine Oil Specification:
API SG or higher, viscosity typically 10W-40 or 15W-40 (refer to manual for precise recommendation based on climate).
Coolant Specification:
Ethylene glycol-based coolant, typically a 50/50 mix with distilled water. BMW Blue coolant or equivalent.
Brake Fluid Specification:
DOT 3 or DOT 4 brake fluid.
Known Issues M10:
Oil leaks from front crank seal and valve cover gasket. Carburetor tuning (on earlier non-injection models) can be finicky. Timing chain stretch can occur.
Known Issues M40:
Timing belt failure is a critical issue. Head gasket failures can occur. Valve stem seals may degrade causing oil consumption.
Known Issues General:
Rust formation (wheel arches, sills, battery tray). Worn suspension bushings. Heater control valve leaks. Check engine mounts.
Brand Heritage:
BMW (Bayerische Motoren Werke AG) has a long history of producing performance-oriented luxury vehicles, known for their 'Ultimate Driving Machine' philosophy.
E30 Introduction:
The E30 generation replaced the E21 and introduced significant advancements in chassis design, suspension, and engine technology. It marked BMW's entry into a more competitive compact executive segment.
E30 Lifespan:
Produced from 1982 to 1994 globally, with the 316 and 316i models being key volume sellers in many markets.
Production Location:
Primarily manufactured in Germany.
