🏷️ Basic Information Identification Make: BMW Model: 3 Series Codes Chassis Code: E30 Generation Production Years: 1982-1994 (E30 Generation) 👋 Introduction Market Position Segment: Compact Executive Car / Sports Sedan Competitive Analysis Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Saab 900, Volvo 240/740 Key Features Vehicle Attributes: Renowned for its excellent handling, driver engagement, solid build quality, and relatively compact size. The E30 platform is highly regarded by enthusiasts. 📋 Manual Details Coverage Areas Covered Models And Years: BMW 3 Series E30, Model Years 1984-1990 Page Count Estimated Page Count: Varies by specific edition, typically 500-1000+ pages for comprehensive workshop manuals Manual Type Type: Workshop Manual / Service Manual / Repair Manual Language Language: English Format Format: Print (likely paper-bound, possibly spiral-bound for ease of use) 📖 Manual Coverage Systems Covered Engine Systems: Engine Management, Engine Mechanical, Ignition, Fuel System, Cooling System, Exhaust System, Emission Control Drivetrain Systems: Transmission and Clutch, Driveshaft Chassis Systems: Brakes, Suspension and Steering Body And Electrical: Body and Interior, Electrical System Specific Procedures: Engine timing adjustments, valve adjustment (M10), fuel injector testing, ignition coil replacement, spark plug service, clutch replacement, transmission fluid and filter change, brake pad and rotor replacement, brake caliper overhaul, power steering system checks, shock absorber and strut replacement, wheel bearing service, exhaust system repair, basic body panel alignment and repair, interior trim removal and installation, wiring harness tracing and repair, fuse and relay diagnostics. Procedures Included Maintenance: Lubrication and Maintenance, Scheduled Maintenance Repair: Engine Rebuild, Transmission Overhaul, Brake Service, Suspension Component Replacement, Electrical Diagnosis and Repair Troubleshooting: Diagnostic Procedures, Symptom-Based Troubleshooting Guides Technical Depth Depth: Comprehensive: Covers from basic maintenance and fluid changes to in-depth mechanical repairs, electrical diagnostics, and component overhaul. Suitable for professional technicians and advanced DIY enthusiasts. 📊 Manual Specifications File Format Format Details: Printed publication with clear diagrams and text. Searchable if a digital version (PDF) is also available, but the primary product appears to be print. Print Quality Quality: High-quality paper and printing for durability in a workshop environment. Clear, legible text and detailed illustrations/diagrams. Binding Type Binding: Likely stitched or glued binding for durability, potentially spiral-bound for lay-flat usability on workbenches. Paper Type Paper: Durable, possibly coated paper to resist grease and workshop grime. Completeness Coverage Scope: Designed to be a complete reference for maintaining and repairing all major mechanical and electrical systems of the specified E30 models. ⚙️ Engine Specifications Primary Engine 318I Engine: M10B18, 1.8L Inline-4, SOHC, Bosch L-Jetronic Fuel Injection 325 Engines: M20B27 'Eta' (Economy) Inline-6, SOHC, Bosch Motronic Fuel Injection (2.7L); M20B25 Inline-6, DOHC (later models), Bosch Motronic Fuel Injection (2.5L) Performance 318I Hp: Approximately 101-105 hp (varies by market and specific tune) 325 Hp 2.7: Approximately 121-125 hp (for M20B27 'Eta') 325I Hp 2.5: Approximately 168-171 hp (for M20B25) Fuel System Injection Type: Electronic Fuel Injection (EFI) - Bosch L-Jetronic or Motronic variants Engine Codes Engine Identification: M10 (4-cyl), M20 (6-cyl) Engine Management ECU Type: Bosch L-Jetronic or Motronic Diagnostic Ports: Early models may rely on analog diagnostic checks or specific test connectors for ECU diagnostics. Later models might feature early forms of OBD (On-Board Diagnostics) interfaces. 🔧 Transmission Standard Manual Transmission: 4-speed or 5-speed Getrag manual transmissions were common. Optional Automatic Transmission: ZF 3HP22 3-speed or 4HP22 4-speed automatic transmissions were optional. Features Clutch Type: Single dry plate, hydraulically operated clutch. Fluid Specs Manual Gearbox Fluid: BMW ATF DEXTRON II or equivalent GL-4 gear oil (check specific model/year manual for exact specification). Automatic Gearbox Fluid: ZF Lifeguardfluid 5 or equivalent ATF Dexron III/Mercon. 📐 Dimensions Exterior Wheelbase: Approx. 2570 mm (101.2 in) Length: Approx. 4360 mm (171.7 in) Width: Approx. 1670 mm (65.7 in) Height: Approx. 1380 mm (54.3 in) Weights Curb Weight Range: Approx. 1150 kg - 1350 kg (2535 lbs - 2976 lbs), depending on engine and options. 🛡️ Safety Features Ratings Crash Test Data: E30 models generally performed well for their era, though specific crash test data from modern standards is not applicable. Designed with crumple zones and safety cage. Active Features Braking System: Front ventilated disc brakes, rear solid disc brakes. ABS was optional on later models, particularly 325i/is. Passive Features Restraints: Seatbelts (front and rear), optional airbags on later models (less common). 💡 Technology Features Infotainment Audio System: Factory radio with cassette player. Speaker systems were basic by modern standards. Optional premium sound systems were available. Driver Assistance ABS: Anti-lock Braking System (ABS) was an optional feature on higher-end models and later production runs. Comfort Features Climate Control: Manual HVAC controls. Optional air conditioning system. Power windows and mirrors were available as options. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500 - 10,000 miles or 12 months, whichever comes first (refer to manual for precise interval based on driving conditions). Timing Belt Replacement: For M20 engines, timing belt replacement is critical,...