The BMW R 1100 S, produced from 1998 to 2005, represents a significant evolution in BMW Motorrad's sport-touring segment. Featuring an air-cooled, four-stroke, twin-cylinder Boxer engine, this model is renowned for its robust engineering, reliable performance, and distinctive handling characteristics. It offers a blend of dynamic capability and rider comfort, making it suitable for both spirited riding and extended journeys. The R 1100 S embodies BMW's long-standing heritage of quality and innovation, delivering a satisfying experience for discerning riders. This comprehensive factory service repair manual provides detailed information for the BMW R 1100 S, covering model years 1999 through 2005. It is designed to assist owners and technicians in maintaining and repairing the vehicle with precision. The manual includes extensive coverage of all major systems, such as the fuel, cooling, engine, clutch, transmission, brakes, suspension, steering, frame, and electrical systems. Within its pages, you will find step-by-step repair procedures, troubleshooting guides, diagnostic techniques, and essential technical specifications, all presented in clear English to ensure accurate and effective service. 🏷️ Basic Information Identification Make: BMW Model: R 1100 S Model Alias: R1100S Codes Engine Code Family: Boxer 👋 Introduction Market Position Target Audience: BMW R 1100 S owners and technicians seeking factory-level repair and maintenance information. Competitive Analysis Manual Origin: Actual Genuine Repair Service Factory Manuals (Not 3rd party) Key Features Unique Selling Points: Complete factory documentation, detailed troubleshooting, direct digital download, cost savings on labor, empowers owners to understand and manage repairs. 📋 Manual Details Coverage Areas Applicable Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005 Page Count Estimated Pages: Hundreds (exact count not specified but implied to be extensive) Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Covered Systems: General Information, Fuel System, Cooling System, Engine Top End, Clutch, Engine Lubrication System, Engine Removal/Installation, Crankshaft/Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Appendix Procedures Included Repair Procedures: Maintenance, Troubleshooting, Repair, Rebuild, Refurbish, Restoration, Diagnostic procedures, Engine fault symptom diagnosis, Part testing, Wiring diagram tracing, Engine management system analysis Technical Depth Depth: Comprehensive, step-by-step instructions, detailed illustrations, diagrams, photos, troubleshooting guide, expert mechanic tips, common fixes, secret techniques 📊 Manual Specifications File Format File Format Details: PDF, High Resolution, Searchable text functionality Print Quality Printability: Printable without restriction (individual pages or entire manual) Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, four-stroke, twin-cylinder Boxer engine Performance Horsepower: 90 hp @ 7,750 rpm (for 1999-2000 models, may vary slightly across years) Torque: 9.9 kgm (97 Nm, 72 lb-ft) @ 5,750 rpm (for 1999-2000 models, may vary slightly across years) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) - Bosch Motronic MA 2.4 (for early models, may have updates) Fuel Type: Unleaded Premium (91-98 RON recommended) Engine Management Ignition System: Digital electronic ignition 🔧 Transmission Standard Transmission Type: 5-speed manual gearbox Optional Optional Transmission: Not Applicable (standard 5-speed) Features Clutch Type: Single dry clutch, hydraulically operated Final Drive: Shaft drive 📐 Dimensions Exterior Length Overall: Approx. 2,180 mm (85.8 in) - exact figures may vary by specification Width Overall: Approx. 850 mm (33.5 in) - handle bar width, exact figures may vary Weights Dry Weight: Approx. 213 kg (470 lbs) - exact figures may vary by specification Gross Vehicle Weight Rating: Approx. 450 kg (992 lbs) - exact figures may vary by specification 🛡️ Safety Features Ratings Safety Systems: ABS (Optional ABS II, standard on some later models), Dual disc front brakes, Single disc rear brake Active Features Braking System: Hydraulically actuated disc brakes, front and rear. Optional integral ABS system. Passive Features Frame Construction: Integral frame concept with stressed engine and gearbox components. 💡 Technology Features Infotainment Instrumentation: Analog tachometer, digital speedometer, odometer, trip meter, fuel level indicator, gear indicator, clock, and warning lights. Driver Assistance ABS: Optional BMW ABS II system, providing anti-lock braking on both wheels. Connectivity Diagnostic System: On-board diagnostics via specific connectors and potentially specialized BMW diagnostic tools. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000 km (6,000 miles) or annually. Refer to manual for exact specifications based on usage. Fluid Specifications Engine Oil Type: SAE 15W-50 or 20W-50, API SG/SH or JASO MA certified motorcycle oil. Refer to manual for exact BMW approval. Brake Fluid Type: DOT 4 or DOT 5.1. Refer to manual for specific BMW recommendations and change intervals. Gearbox Oil Type: SAE 75W-90 GL-5 gear oil. Refer to manual for exact specifications and capacity. Known Issues Common Wear Items: Clutch slave cylinder seal leaks, fuel pump relay failures, alternator bearing wear, occasional oil seal leaks (e.g., crank seal, transmission output seal). Electrical Quirks: Issues with the instrument cluster, starter motor solenoid, and headlight relays can occur with age and mileage. Technical Specifications Valve Clearance Adjustment:...