🏷️ Basic Information Identification Make: Ford Model: Sierra RS Cosworth Generation: First Generation Sierra RS Cosworth Production Years Covered: 1985-1987 Codes Chassis Code: Sierra Mk1 (GBA) 👋 Introduction Market Position Positioning: Performance homologation special, iconic '80s sports sedan Competitive Analysis Competitors: BMW M3 (E30), Mercedes-Benz 190E 2.3-16 Cosworth, Audi Quattro Key Features Appeal: Legendary Cosworth YBD engine, aggressive styling, motorsport heritage Manual Value Benefit: Enables owners to perform complex repairs and maintenance confidently, saving costs and preserving vehicle originality Advantage: Provides factory-level detail, crucial for specialist work on a classic performance car 📋 Manual Details Coverage Areas Primary Focus: Service, Repair, Maintenance, Restoration Page Count Estimated Pages: Highly Detailed (Specific page count not provided, but described as comprehensive) Manual Type Type: Workshop Manual / Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Full coverage: disassembly, assembly, inspection, repair, rebuilding Cooling System: Radiator, water pump, thermostat, hoses, fan assembly, coolant specifications Starting And Ignition: Starter motor, ignition system components, timing, spark plugs Emission Controls: Catalytic converter, EGR system, EVAP system, emission control sensors and actuators Engine Controls: ECU, sensors (MAP, TPS, O2, etc.), actuators, fuel injection system, ignition control Transmission: Manual gearbox (e.g., BorgWarner T5), clutch, driveshafts, differential Driveline: Propeller shaft, CV joints, rear axle, wheel bearings Brakes: Front and rear disc brakes (potentially upgraded for RS models), ABS (if fitted), hydraulic system, bleeding procedures Steering: Power steering system, steering rack, tie rod ends, steering column Suspension: Front and rear suspension, shock absorbers, springs, control arms, bushings, alignment specifications Exhaust System: Exhaust manifold, catalytic converter, mufflers, pipes, hangers Fuel System: Fuel tank, fuel pump, fuel lines, fuel filter, fuel injectors, fuel pressure specifications HVAC: Heating, Ventilation, and Air Conditioning system components and service Instrumentation And Warning Systems: Dashboard instruments, warning lights, gauges, onboard diagnostics indicators Battery And Charging System: Battery, alternator, starter motor, wiring and testing Audio Systems: Factory radio, speaker installation and wiring Lighting: Headlights, taillights, interior lights, wiring diagrams Electrical: Comprehensive coverage, including wiring schematics, component testing, troubleshooting Body Interior Exterior: Body panels, doors, windows, seats, trim, styling elements Procedures Included General Information: Vehicle identification, general warnings, safety precautions, torque specifications Service Information: Routine maintenance, service intervals, fluid types and capacities Repair Procedures: Detailed, step-by-step instructions for all major components and systems Troubleshooting: Diagnostic guides for common problems and fault finding Rebuilding: Comprehensive procedures for engine, transmission, and differential rebuilds Refurbishment Restoration: Guidance for bringing the vehicle back to original or enhanced specifications Wiring Schematics: Detailed electrical diagrams for all circuits Technical Depth Depth Level: Comprehensive: from basic maintenance to complete engine rebuilds and advanced electrical diagnostics Detail Level: Extremely detailed with substeps, notes, cautions, and warnings Illustrations: Detailed illustrations, drawings, photos, and enlarged insets Diagnostic Support: Combines troubleshooting with detailed wiring diagrams for electrical system diagnosis 📊 Manual Specifications File Format File Type: PDF Requirements: PDF Reader Searchability: Likely searchable text within PDF (standard for quality manuals) Printability: Printable pages for workshop use Print Quality Quality: High-quality digital reproduction of original factory data Binding Type Type: Digital Download (Not Applicable for physical binding) Paper Type Type: Digital Download (Not Applicable for physical paper type) ⚙️ Engine Specifications Primary Engine Engine Code: Cosworth YBD Engine Type: DOHC Inline 4-cylinder with Turbocharging and Intercooler Displacement: 2.0 Litres (1993 cc) Performance Horsepower: 204 PS (150 kW; 201 bhp) - European Spec Torque: 290 Nm (214 lb-ft) - European Spec Fuel System Injection System: Bosch L-Jetronic Fuel Injection Turbocharger: Garrett T3 Turbocharger with Wastegate Engine Components Cylinder Head: 16-valve Cosworth Alloy Cylinder Head Block: Cast Iron Block 🔧 Transmission Standard Type: 5-Speed Manual Gearbox Model: BorgWarner T5 (modified) Features Drivetrain: Rear-Wheel Drive (RWD) 📐 Dimensions Exterior Body Style: 4-door Sedan / Saloon Weights Curb Weight: Approx. 1350 kg (2976 lbs) 🛡️ Safety Features Ratings Era Standard: Standard safety features for the mid-1980s Passive Features Seatbelts: Front and Rear Seatbelts Construction: Rigid body structure 💡 Technology Features Infotainment Audio System: Factory fitted radio cassette player with basic speaker system Driver Assistance ABS: Available on some models, consult vehicle specifications Connectivity Features: Limited by era; focused on mechanical and electrical systems 🔧 Maintenance Service Intervals Oil Change: Typically every 5,000-10,000 km or 6-12 months (refer to manual for exact spec) Fluid Specifications Engine Oil: Synthetic or semi-synthetic 5W-30 or 10W-40 (refer to manual for specific viscosity and API rating for Cosworth YBD) Coolant: Ethylene glycol based antifreeze, typically a 50/50 mix with distilled water Brake Fluid: DOT 3 or DOT 4 (refer to manual for specific recommendation) Gearbox Oil: Specific manual transmission fluid (e.g., GL-4 rated) - consult manual for capacity and grade Differential Oil: Hypoid gear oil (e.g., GL-5 rated) - consult manual for capacity and grade Known Issues Engine Wear: Potential head gasket issues, turbocharger wear, oil consumption Electrical Gremlins: Aging wiring harnesses and...