🏷️ Basic Information Identification Make: BMW Model: 316i Generation: E30 Codes Chassis Code: E30 Engine Code Variant: M10B18 (early part of production range likely) 👋 Introduction Market Position Segment: Compact executive sedan/coupe. The E30 3 Series was renowned for its sporty handling and build quality. Competitive Analysis Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Ford Sierra, Opel Ascona/Vectra. Key Features Driving Dynamics: Excellent balance, rear-wheel drive, responsive steering, and a driver-focused cockpit were hallmarks of the E30 generation. Reliability And Durability: BMW's reputation for robust engineering contributed to the E30's longevity, making it a popular choice for enthusiasts and daily drivers. Manual Value Proposition Cost Effectiveness: Provides detailed procedures to perform DIY maintenance and repairs, significantly reducing labor costs associated with dealership servicing. 📋 Manual Details Coverage Areas Year Coverage: 1988, 1989, 1990, 1991 Page Count Estimated Page Count: Varies by publisher; typically 500+ pages for a comprehensive workshop manual Manual Type Type: Workshop Service Repair Manual Language Language: Likely English (standard for most international markets), but verification is recommended. Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanicals (M10 series), fuel injection (Bosch L-Jetronic/Motronic), ignition system, exhaust system, cooling system, lubrication system. Transmission: Manual and automatic transmission overhaul and repair, clutch operation, driveshafts, differentials. Chassis: Suspension (front struts, rear trailing arms, shock absorbers, springs), steering system (rack and pinion), braking system (front discs, rear drums/discs depending on spec), wheel alignment. Electrical: Wiring diagrams, starter system, charging system (alternator), lighting system, instrumentation, fuses and relays, basic diagnosis of electrical faults. Body And Trim: Body panel removal and installation, interior trim, door mechanisms, glass, bumpers. Procedures Included Maintenance: Scheduled maintenance intervals, oil changes, filter replacements, spark plug replacement, belt adjustments, fluid level checks. Repair: Engine component replacement (pistons, bearings, gaskets), fuel injector servicing, brake pad/disc replacement, shock absorber replacement, radiator replacement, starter/alternator repair. Troubleshooting: Diagnostic procedures for common starting, running, electrical, and braking issues, fault code interpretation (if applicable to the specific model variant's ECU). Diagnostics: Component testing, sensor readings, basic electrical circuit tracing. Technical Depth Depth: Comprehensive, covering routine maintenance to complete engine and transmission overhauls. Detailed specifications and torque values are expected. 📊 Manual Specifications File Format Digital Format: PDF Print Quality Searchable: Typically searchable text, allowing for quick information retrieval. Binding Type Physical Binding: N/A (Digital Format) Paper Type Digital Resolution: High-resolution scans for clear diagrams and text. ⚙️ Engine Specifications Primary Engine Engine Type: Inline-4 Cylinder, Naturally Aspirated Engine Code E30 316I: Likely M10B18 (pre-facelift models) or potentially M40B18 for later 1988-1991 models. Verification is crucial. Displacement: 1.8 Liters (1766 cc or 1795 cc depending on specific M10/M40 variant) Performance Horsepower: Approximately 98-105 hp (depending on specific variant and market regulations) Torque: Approximately 140-145 Nm (103-107 lb-ft) depending on specific variant and market regulations Fuel System Fuel Delivery: Bosch L-Jetronic or Motronic fuel injection Fuel Type: Unleaded Gasoline (RON 91 or higher recommended) Engine Management ECU Type: Bosch Motronic (likely M1.3 or similar) 🔧 Transmission Standard Transmission Type: 4-speed or 5-speed Manual Transmission Optional Transmission Type: 3-speed or 4-speed Automatic Transmission (ZF or similar) Features Clutch Type: Single dry plate, hydraulically operated (manual transmission) Fluid Specification Manual Transmission Fluid: BMW ATF Dextron II or equivalent (check manual for specific part numbers) Automatic Transmission Fluid: BMW ATF Dextron II or equivalent (check manual for specific part numbers) 📐 Dimensions Exterior Length: Approx. 4325 mm (170.3 in) Width: Approx. 1677 mm (66.0 in) Height: Approx. 1380 mm (54.3 in) Wheelbase: Approx. 2570 mm (101.2 in) Weights Curb Weight: Approx. 1100-1200 kg (2425-2645 lbs), depending on transmission and options. Gross Vehicle Weight Rating: Check vehicle specific plate, typically around 1600 kg. 🛡️ Safety Features Ratings Crash Test Ratings: No official standardized ratings from modern agencies (NHTSA/Euro NCAP) for this era. However, the E30 chassis was known for its robust safety cell. Active Features ABS: Optional on some models, standard on high-performance variants or later production runs. Check specific vehicle. Limited Slip Differential: Optional on some models, particularly with M-Sport packages or performance variants. Passive Features Seatbelts: Three-point front seatbelts, two-point rear seatbelts (later models may have three-point rear). Driver Airbag: Rarely fitted as standard on early E30 models, became more common on later production years, often as an option. Reinforced Chassis: The E30 featured a strong unibody construction with front and rear crumple zones. 💡 Technology Features Infotainment Radio System: Factory fitted AM/FM radio with cassette player. Many units may have been upgraded over time. Speaker System: Typically 2-4 speaker system depending on trim level. Driver Assistance Cruise Control: Optional on many models. Connectivity Obc: On-Board Computer often featured basic functions like fuel consumption, average speed, and time. Prone to failure on these older vehicles. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 7,500 - 10,000 miles or 12 months, whichever comes first (refer to...