🏷️ Basic Information Identification Make: Ford Model: Sierra RS Years Covered: 1985-1996 Codes Platform: Ford Dリーナ platform 👋 Introduction Market Position Segment: Compact/Mid-size Performance Hatchback/Saloon/Estate Competitive Analysis Key Rivals: Volkswagen Golf GTI, Vauxhall Astra GTE/Cavalier GSi, Peugeot 309 GTI, Renault 19 16V, Opel Kadett GSI Key Features Driving Dynamics: Renowned for its sophisticated multi-link rear suspension, RWD bias (later AWD options), and engaging handling Rs Variants: Focus on performance variants like the RS Cosworth, featuring potent Cosworth YB engines 📋 Manual Details Coverage Areas Primary Coverage: Workshop Service and Repair Page Count Estimated Pages: 500+ Manual Type Type: Comprehensive Workshop Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine, Transmission, Drivetrain (FWD/AWD) Chassis: Suspension, Steering, Brakes, Wheels & Tires Electrical: Wiring Diagrams, Lighting, Ignition, Starting, Charging, Instruments, Accessories Body: Bodywork, Interior Trim, Doors, Windows, Glass, HVAC Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements Troubleshooting: Diagnostic Charts, Symptom-Based Troubleshooting Repair: Component Removal, Installation, Rebuilding, Adjustment Diagnostics: Fault Code Interpretation, Component Testing Technical Depth Depth: Comprehensive: from basic maintenance to complete engine/transmission rebuilds and advanced electrical diagnostics 📊 Manual Specifications File Format File Type: Searchable PDF Print Quality Quality: High-Resolution Scans of Original Factory Documentation Binding Type Binding: N/A (Digital) Paper Type Paper: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Family: Ford CVH, Ford I4 (DOHC), Ford Cosworth YB Notable Engines: 2.0L DOHC (Sierra XR4i, Ghia), 2.8L Cologne V6 (XR4x4), 2.9L Cologne V6 (XR4x4), 2.0L Cosworth YB Turbo (Sierra RS Cosworth) Performance Rs Cosworth Power: 225-230 PS (168-172 kW; 222-227 hp) for early RS500, later models ~220 PS Xr4I Power: Approx. 115-125 PS (86-93 kW; 113-123 hp) Fuel System Injection: Electronic Fuel Injection (EFI) across most variants, Carburetor on some early base models Turbocharging: Garrett T3/T03B turbocharger for RS Cosworth models 🔧 Transmission Standard Gearbox: 5-speed Manual (e.g., Ford MT75, BorgWarner T5 for RS Cosworth) Optional Automatic: 3-speed or 4-speed Automatic (on certain non-performance variants) Features Drivetrain: Rear-Wheel Drive (RWD) standard, All-Wheel Drive (AWD) optional/standard on XR4x4 and RS Cosworth models 📐 Dimensions Exterior Body Styles: 3-door Hatchback, 5-door Hatchback, 4-door Saloon, 5-door Estate/Wagon Weights Curb Weight Range: Approx. 1050 kg - 1350 kg (depending on body style and engine) 🛡️ Safety Features Ratings Crash Testing: Limited official Euro NCAP ratings for this era; relied on national standards and internal testing. Active Features Braking: Front Ventilated Discs, Rear Solid Discs (Upgrade to larger discs/calipers on RS models) Passive Features Restraints: Seatbelts (3-point front, 2-point or 3-point rear depending on spec), optional seatbelt pretensioners Structure: Reinforced Safety Cell, Crumple Zones 💡 Technology Features Infotainment Audio System: Factory-installed radios with cassette players, optional CD players on later models. Basic speaker systems. Driver Assistance ABS: Anti-lock Braking System (ABS) became available as an option on higher trims and standard on certain performance variants (e.g., RS Cosworth). Connectivity Features: Limited to basic vehicle functions; no modern connectivity features. 🔧 Maintenance Service Intervals Oil Change Interval: Every 6,000-10,000 miles or 12 months (depending on engine type and oil used) Spark Plug Replacement: Every 20,000-30,000 miles (standard plugs), longer for iridium/platinum Timing Belt Replacement: Every 40,000-60,000 miles or 4-5 years for CVH/DOHC engines (critical to avoid engine damage) Fluid Specifications Engine Oil Grade: e.g., 5W-30, 10W-40, 15W-40 (refer to manual for specific engine/climate) Coolant Type: Ethylene Glycol-based antifreeze (e.g., Ford Orange/Yellow) Transmission Fluid Manual: GL-4 Gear Oil (e.g., 75W-90, 80W-90) Transmission Fluid Automatic: Mercon/Dexron II/III ATF Known Issues Rust: Common areas include wheel arches, sills, floor pans, strut towers, and rear spring mounts. Electrical: Corrosion in connectors, aging wiring looms, issues with heater control panels, central locking (especially on later models). Engine: CVH engines can suffer from head gasket failures and oil leaks. Cosworth YB engines require diligent maintenance to prevent turbo or internal damage. Suspension: Wear in bushes (control arms, anti-roll bar), rear trailing arm bushes, and potential strut top bearing issues. Exhaust: Corrosion and failure of exhaust components, especially in older vehicles. 📚 Vehicle History Brand Heritage Manufacturer: Ford Motor Company Model Evolution Generation 1: 1982-1985 (Mk1 Sierra, introduction of aerodynamic styling and multi-link rear suspension) Generation 2: 1985-1993 (Mk2 Sierra, facelift with revised interior, dashboard, front-end styling, and introduction of RS Cosworth) Generation 3: 1993-1996 (Mk3 Sierra/Sierra Sapphire, final facelift with 'aero' headlights, revised bumpers, and interior upgrades) Production Manufacturing Locations: Genk (Belgium), Halewood (UK), Saarlouis (Germany) Production Volume: Over 2.7 million units produced globally 🏆 Awards & Recognition Recognitions Motorsport Success: Significant success in rallying (Group A homologation special for RS Cosworth) and touring car racing (BTCC, DTM). Design Awards: Praised for its distinctive aerodynamic styling upon launch, though some found it controversial.