🏷️ Basic Information Identification Make: BMW Model: 3-series Chassis Code: E21 Year: 1985 Generation Generation Code: E21 Codes Product Code: BMW_E21_1985_SRM 👋 Introduction Market Position Target Audience: BMW owners, independent mechanics, DIY enthusiasts seeking in-depth repair information. Competitive Analysis Manual Value Proposition: Provides OEM-level data, replacing generic guides with vehicle-specific, factory-approved procedures. Key Features Ease Of Use: Single PDF manual, eliminating the need to flip through multiple physical books. Convenience: Printable pages for on-site use, digital format protects against damage. Accuracy: Vehicle-specific information identical to dealership technician manuals. 📋 Manual Details Coverage Areas All Models Covered: Yes Repair Scope: A-Z (All Repairs) Page Count Estimated Page Count: Not specified, but described as comprehensive. Manual Type Manual Type: Factory Service and Repair Manual Language Language: English Format Digital Format: PDF Compatibility: Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac Download Speed: Speed Download Requirements Software Requirements: Adobe PDF Reader, Winzip 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine overhaul, component testing, torque specifications. Engine Control System: Diagnosis and repair of engine management systems. Fuel System: Fuel pump, injectors, fuel lines, carburetors (if applicable), fuel pressure testing. Emission Control: Diagnosis and repair of emission control systems and components. Intake Exhaust Cooling: Cooling system components, exhaust system diagnosis and repair, intake manifold. Lubrication System: Oil pump, oil filter, lubrication passages, oil pressure testing. Ignition Charging Starting: Ignition system components, alternator, starter motor, battery testing and diagnosis. Automatic Transmission: Diagnosis, repair, fluid service, and torque converter information. Manual Transmission: Gearbox overhaul, clutch service, shift linkage adjustments. Driveline: Transfer case (if applicable), propeller shaft, driveshaft, U-joints, CV joints. Differential: Rear axle, differential inspection, fluid service, gear ratio information. Axle Suspension: Front and rear suspension components, bushings, shocks, struts, alignment specifications. Wheels Tires: Tire pressure specifications, wheel torque, wheel bearing service. Brake Control System: ABS diagnosis and repair (if equipped), brake booster, master cylinder. Brake System: Brake pad/shoe replacement, rotor service, caliper overhaul, brake fluid specifications. Parking Brake: Parking brake adjustment and repair. Steering Column: Steering column components, ignition lock cylinder replacement. Power Steering: Power steering pump, rack and pinion, fluid service. Air Conditioning: AC system diagnosis, refrigerant handling, component replacement. Supplemental Restraint System: Airbag system diagnosis and SRS component service (where applicable). Seat Belt System: Seat belt inspection and repair/replacement. Engine Immobilizer: Immobilizer system diagnosis and repair (if equipped). Cruise Control: Cruise control system diagnosis and repair. Wiper Washer: Wiper motor, washer pump, linkage service. Door Lock System: Door lock actuators, central locking system repair. Meter Audio Visual: Instrument cluster repair, audio system troubleshooting. Horn: Horn system diagnosis and repair. Glass Mirrors: Windshield replacement, mirror adjustment and replacement. Instrument Panel: Instrument panel removal and installation, gauge repair. Seats: Seat adjustment mechanism repair, seat removal. Body Panels: Hood, door, fender removal and installation, panel alignment. Exterior Interior Trim: Exterior and interior trim component service. Electrical System: Comprehensive electrical troubleshooting, component testing, wiring diagrams. Multiplex Communication: Diagnosis of multiplex/CAN communication systems (if applicable to later E21 variants). Procedures Included Maintenance Procedures: Scheduled maintenance, fluid changes, filter replacements, general upkeep. Repair Procedures: Step-by-step instructions for component replacement and repair. Diagnostic Procedures: Troubleshooting guides for various systems, fault code interpretation (if applicable). Installation Procedures: Instructions for installing new or replacement parts. Rebuild Procedures: Detailed instructions for engine, transmission, and other major component rebuilds. Technical Depth Depth Of Information: Factory-level detail, suitable for professional technicians and advanced DIYers. Diagrams Illustrations: Numerous diagrams, illustrations, and exploded views. Wiring Schematics: Complete and detailed wiring schematics for all electrical systems. Specifications: Comprehensive technical specifications for all components and systems. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text within the PDF for efficient information retrieval. Print Quality Printable Pages: All pages are printable for workshop use. Image Enhancement: Images can be blown up for enlarged copies. Binding Type Binding: Digital (PDF), no physical binding. Paper Type Paper Type: Not applicable (digital format). ⚙️ Engine Specifications Primary Engine Engine Options E21: Likely covers M10 inline-four engines (e.g., 316, 318, 320i) and M20 inline-six engines (e.g., 323i). Performance Horsepower Range: Varies by engine, typically 75-143 hp for the E21 generation. Fuel System Fuel Delivery Types: Carburetion and Bosch L-Jetronic fuel injection depending on model and year. 🔧 Transmission Standard Standard Transmission Type: 4-speed or 5-speed manual transmission. Optional Optional Transmission Type: 3-speed or 4-speed automatic transmission. Features Clutch Type: Single-plate dry clutch. 📐 Dimensions Exterior Body Styles E21: 2-door sedan, 3-door hatchback (e.g., 323i Baur convertible). Weights Curb Weight Range: Approximately 1100-1300 kg (2425-2866 lbs). 🛡️ Safety Features Ratings Safety Ratings Era: E21 era safety standards were less stringent than modern vehicles; focus on structural integrity and basic passive safety. Active Features Active Safety Features: Disc brakes (front), drum brakes (rear), optional ABS on some later models. Passive Features Passive Safety Features: Crumple zones, reinforced passenger cell, padded dashboard....