🏷️ Basic Information Identification Make: BMW Model: 3 Series Year: 1984 Codes Chassis Code: E30 👋 Introduction Market Position Segment: Compact executive sports sedan, renowned for its driving dynamics and build quality. Competitive Analysis Key Competitors: Mercedes-Benz W201 (190E), Audi 4000, Alfa Romeo Giulietta, Ford Sierra. Key Features Driving Experience: Praised for its balanced chassis, responsive steering, and engaging powertrain, defining the modern BMW driving experience. Engineering Philosophy: Emphasizes driver involvement, performance, and a premium feel, reflecting BMW's 'Ultimate Driving Machine' ethos. Manual Purpose Target Audience: Enthusiasts, DIY mechanics, and professional automotive technicians working on the 1984 BMW 3 Series E30. 📋 Manual Details Coverage Areas Engine Mechanical: Complete overhaul, rebuild procedures, component testing, diagnosis Engine Electrical: Ignition system, fuel injection (Bosch Motronic), starting & charging, sensors, wiring diagrams Transmission Manual: Clutch, gearbox overhaul, shifting mechanisms, driveshafts Transmission Automatic: Hydraulic control, valve body, torque converter, cooling Suspension: Front strut assemblies, rear semi-trailing arms, bushings, springs, shock absorbers, alignment Steering: Power steering system, steering rack, tie rods, steering column Brakes: Front and rear disc brakes, calipers, master cylinder, ABS (if equipped), brake lines, bleeding procedures Fuel System: Fuel tank, fuel pump, fuel injectors, fuel pressure regulator, fuel lines Cooling System: Radiator, water pump, thermostat, coolant hoses, fan system Exhaust System: Manifolds, catalytic converter, mufflers, pipes Body And Chassis: Body panel removal and installation, structural components, door mechanisms, glass replacement Electrical System: Lighting, wipers, horn, power windows, central locking, dashboard instruments, fuse/relay locations Climate Control: HVAC system components, refrigerant handling, blower motor, controls Interior Trim: Seat removal, dashboard trim, interior paneling Troubleshooting: Diagnostic charts, common problems and solutions, fault finding Specifications Data: Torque values, clearances, fluid types and capacities, electrical resistance values Page Count Estimated Pages: 1000+ Manual Type Type: Full Service & Repair Manual Language Language: English Format Format: Print (likely compiled from original factory documentation) 📖 Manual Coverage Systems Covered All Major Systems: Comprehensive coverage of all mechanical, electrical, and body systems specific to the 1984 BMW 3 Series E30 platform. Procedures Included Maintenance And Repair: Routine maintenance schedules, fluid changes, filter replacements, component diagnosis, removal, installation, and overhaul for all vehicle systems. Troubleshooting And Diagnostics: Detailed troubleshooting guides, symptom-based diagnostics, common fault identification, and corrective action procedures. Rebuilding And Restoration: In-depth procedures for engine rebuilds, transmission overhauls, suspension restoration, and bodywork refurbishment. Electrical Troubleshooting: Wiring diagrams with clear component identification, diagnostic flowcharts for electrical faults, and component testing procedures. Technical Depth Depth: Expert level, covering from basic fluid checks to complete engine and transmission rebuilds, including specialized tools and techniques. 📊 Manual Specifications File Format Digital Format: N/A (Print Format) Print Quality Paper Type: Likely high-quality, durable paper suitable for workshop environments. Print Resolution: Professional printing, ensuring clarity of diagrams and text. Binding Type Binding: Likely a robust binding suitable for frequent use, such as perfect binding or a spiral bound format for lay-flat use. ⚙️ Engine Specifications Primary Engine Engine Code: M10 (4-cylinder) and M20 (6-cylinder) Engine Variants: 318i (M10), 325e (M20 'Eta'), 325i (M20) Performance 318I Hp: 105 hp @ 5800 rpm (approx.) 318I Torque: 107 lb-ft @ 3250 rpm (approx.) 325E Hp: 121 hp @ 4800 rpm (approx.) 325E Torque: 170 lb-ft @ 3250 rpm (approx.) 325I Hp: 168 hp @ 5800 rpm (approx.) 325I Torque: 164 lb-ft @ 4000 rpm (approx.) Fuel System Injection Type: Bosch L-Jetronic or Motronic fuel injection Fuel Type: Unleaded gasoline (Octane rating specified in manual) Engine Mechanical Displacement: 1.8L (M10), 2.7L (M20 'Eta'), 2.5L (M20) Bore X Stroke: Varies by engine variant (e.g., M10: 89.0 mm x 71.0 mm; M20B27: 84.0 mm x 78.9 mm; M20B25: 84.0 mm x 73.8 mm) Compression Ratio: Varies by engine variant (e.g., M10: 8.4:1; M20B27: 8.3:1; M20B25: 8.8:1) 🔧 Transmission Standard Manual Transmission: 4-speed or 5-speed Getrag manual transmission Optional Automatic Transmission: ZF 4HP22 4-speed automatic transmission Features Rear Wheel Drive: All E30 models feature rear-wheel drive (RWD). Differential: Open differential (limited-slip differential often available as an option or on performance models). 📐 Dimensions Exterior Wheelbase: 2570 mm (101.2 in) Length: 4340 mm (170.9 in) for sedan/coupe Width: 1675 mm (66.0 in) Height: 1380 mm (54.3 in) for sedan/coupe Weights Curb Weight: Approx. 1150 kg - 1300 kg (2535 lbs - 2866 lbs) depending on model and equipment. Gross Vehicle Weight: Specified by model and axle load limits in manual. Towing Capacity: Not typically specified or recommended for this model. 🛡️ Safety Features Ratings Crash Test Data: Limited official crash test data from this era, but generally considered safe for its time with a robust chassis. Active Features ABS: Anti-lock Braking System (ABS) available as an option, particularly on higher-spec models like the 325i. Passive Features Seatbelts: Three-point inertia-reel seatbelts in the front; lap belts in the rear. Body Structure: Reinforced safety cage, crumple zones, and side-impact protection beams. Steering Column: Collapsible steering column...