🏷️ Basic Information Identification Make: BMW Model: 316 Model Variant: 316i Year: 1986 Codes Chassis Code Prefix: E30 👋 Introduction Market Position Vehicle Segment: Compact executive sedan/coupe Brand Perception: Known for sporty handling, driver engagement, and premium build quality. Competitive Analysis Key Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Volvo 240. Key Features Driving Dynamics: Renowned for its balanced chassis, rear-wheel-drive dynamics, and responsive steering. Build Quality: High-quality materials and construction, characteristic of BMW. Engineering Philosophy: Focus on driver-centric design and mechanical precision. 📋 Manual Details Coverage Areas Manual Type: Service Repair Workshop Manual Language: English Format: Likely Printed/Digital (PDF) Intended Audience: Professional Mechanics and Advanced DIY Enthusiasts 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, tuning, diagnostics, fuel injection system (Bosch L-Jetronic/Motronic), ignition system, cooling system, exhaust system. Transmission: Manual and automatic transmission service, repair, overhaul, clutch service, driveshaft, differential. Brakes: Front and rear brake systems (disc/drum), ABS (if equipped), hydraulic system, parking brake. Suspension And Steering: Front and rear suspension components, shock absorbers, springs, bushings, steering rack, power steering system. Electrical System: Complete electrical diagrams, wiring harnesses, battery, alternator, starter, lighting, instrumentation, fuses, relays, onboard computer diagnostics (limited for the era). Body And Chassis: Body panel removal and installation, interior trim, glass, body sealing, chassis adjustments, alignment. Heating Ventilation And Air Conditioning: HVAC system operation, components, and service. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plug replacement, belt tensioning, fluid checks. Troubleshooting: Diagnostic procedures for common problems, symptom-based troubleshooting guides, electrical fault finding. Repair: Detailed step-by-step repair instructions for all major components, including engine rebuilds, transmission overhauls, brake caliper replacement, etc. Installation: Component removal and installation procedures for all major systems. Technical Depth Engine Diagnostics: Advanced engine diagnostics, timing adjustments, fuel pressure testing, emissions control system. Electrical Diagnostics: In-depth electrical troubleshooting using wiring diagrams, multimeter usage, component testing. Rebuild Procedures: Comprehensive rebuild procedures for engines and transmissions, including torque specifications and tolerances. 📊 Manual Specifications File Format Likely Format: PDF (searchable text, printable) Print Quality Typical Quality: High-resolution scans of original factory documentation Binding Type If Printed: Likely perfect bound or spiral bound for ease of use Paper Type If Printed: Durable paper stock suitable for workshop environments Completeness Coverage Scope: Comprehensive, covering all aspects of service and repair as performed by authorized technicians. ⚙️ Engine Specifications Primary Engine Engine Code Family: M10 / M40 (likely M10 for early 316i E30, potentially M40 later) Engine Type: Inline-4 Cylinder, DOHC (for M40) or SOHC (for M10) Displacement: 1.8 Liters (approx. 1766cc for M10, or 1795cc for M40) Performance Horsepower: Approximately 105-115 hp (depending on specific engine variant and market) Torque: Approximately 150-160 Nm (111-118 lb-ft) Fuel System Fuel Delivery: Bosch L-Jetronic or Motronic electronic fuel injection (EFI) Fuel Type: Unleaded Gasoline Engine Management Ignition System: Electronic Ignition System Emission Controls: Catalytic converter (depending on market), secondary air injection (possible) 🔧 Transmission Standard Transmission Type: 4-speed manual transmission Optional Transmission Type: Optional 3-speed or 4-speed automatic transmission Features Clutch Type: Single dry plate clutch Gear Ratios: Specific gear ratios will be detailed in the manual. 📐 Dimensions Exterior Body Styles: 2-door sedan, 4-door sedan, convertible, touring (wagon - less common for 316i) Wheelbase: Approximately 2570 mm (101.2 in) Length: Approximately 4325 mm (170.3 in) Width: Approximately 1640 mm (64.6 in) Height: Approximately 1380 mm (54.3 in) Weights Curb Weight: Approximately 1100-1250 kg (2425-2755 lbs), depending on body style and equipment Gross Vehicle Weight: Specific GVWR available in manual. Cargo Trunk Capacity: Sufficient for a compact executive sedan of its era, detailed in manual. 🛡️ Safety Features Ratings Crash Test Data: Limited formalized crash test data available for this era and specific model, but generally considered safe for its time. Active Features Braking System: Front disc brakes, rear drum brakes. Optional ABS (Anti-lock Braking System) may have been available. Passive Features Seat Belts: Three-point seat belts (front), lap belts (rear). Body Structure: Reinforced chassis and body construction. 💡 Technology Features Infotainment Audio System: Factory fitted AM/FM radio with cassette player, basic speaker system. Display: Analog gauges for speedometer, tachometer, fuel, and temperature. Warning lights. Driver Assistance ABS: Optional Anti-lock Braking System (ABS) available on some models. Cruise Control: Optional cruise control system may be fitted. Connectivity Connectivity Features: None by modern standards; basic radio antenna connection. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000 - 10,000 km (3,000 - 6,000 miles) or 6-12 months, consult manual for exact recommendation. Spark Plug Replacement: Every 20,000 - 40,000 km (12,000 - 25,000 miles), depending on plug type. Timing Belt Replacement: If equipped with M40 engine, timing belt replacement is critical (e.g., every 60,000 km or 4 years). M10 engines use a timing chain. Fluid Specifications Engine Oil Type: API SG or SH, SAE 15W-40 or 10W-40 (consult manual for specific viscosity and API rating for the...