Segment:
        
        
            Sport touring motorcycle, known for its comfortable ride, capable handling, and boxer-twin engine character.
        
     
    
    
        
            Competitors:
        
        
            Competed with other sport touring motorcycles of the era, offering a blend of performance and long-distance comfort. Key rivals might have included models from Honda (e.g., VFR series), Kawasaki (e.g., GTR series), and Yamaha (e.g., FJ series).
        
     
    
    
        
            Features:
        
        
            Unique boxer-twin engine, Telelever front suspension, Paralever rear suspension, shaft drive, aerodynamic fairing, comfortable ergonomics for long-distance riding.
        
     
    
    
        
            Audience:
        
        
            Primarily mechanical technicians and experienced motorcycle enthusiasts who perform their own maintenance and repairs.
        
     
 
    
    
    
        
            Applicable Years:
        
        
            1999, 2000, 2001, 2002, 2003, 2004, 2005
        
     
    
    
        
            Estimated Page Count:
        
        
            Detailed technical documentation often exceeds 500 pages; specific count not provided in source.
        
     
    
    
        
            Type:
        
        
            Workshop Service Repair Manual
        
     
    
    
    
    
 
    
    
    
        
            Engine:
        
        
            Engine mechanical, cylinder head, valve train, crankshaft, pistons, connecting rods, lubrication system, cooling system, fuel injection system, ignition system, exhaust system.
        
     
    
        
            Transmission:
        
        
            Clutch, gearbox (transmission), final drive (shaft drive), gearbox oil.
        
     
    
        
            Chassis:
        
        
            Frame, steering, front suspension (Telelever), rear suspension (Paralever), wheels, tires, brake system (ABS optional), brake fluid.
        
     
    
        
            Electrical System:
        
        
            Battery, charging system, starter motor, lighting system, instruments, ignition switch, ECU (Engine Control Unit), wiring diagrams, diagnostic connectors.
        
     
    
        
            Bodywork And Fittings:
        
        
            Fairings, fuel tank, seat, body panels, fairing components, fasteners.
        
     
    
    
        
            Maintenance:
        
        
            Routine servicing, oil changes, filter replacements, spark plug replacement, brake pad replacement, fluid level checks and top-offs, air filter cleaning/replacement, valve clearance checks.
        
     
    
        
            Repair:
        
        
            Engine overhaul, transmission overhaul, suspension component replacement, brake system overhaul, electrical system troubleshooting and repair, bodywork repair.
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic procedures for common problems, fault code interpretation (if applicable), symptom-based troubleshooting guides.
        
     
    
        
            Special Tools:
        
        
            Identification and usage of specialized tools required for specific repair and maintenance tasks.
        
     
    
    
        
            Depth:
        
        
            Comprehensive, covering basic maintenance to major component overhauls and detailed diagnostics, intended for professional technicians but accessible to experienced DIY mechanics.
        
     
 
    
    
    
        
            Type:
        
        
            Four-stroke, horizontally opposed twin-cylinder boxer engine
        
     
    
        
            Displacement:
        
        
            1085 cc (66.2 cu in)
        
     
    
        
            Bore X Stroke:
        
        
            99 mm x 70.5 mm
        
     
    
        
            Compression Ratio:
        
        
            11.3:1
        
     
    
        
            Cooling System:
        
        
            Air/oil-cooled
        
     
    
    
        
            Horsepower:
        
        
            Approx. 90 hp (67 kW) at 7250 rpm
        
     
    
        
            Torque:
        
        
            Approx. 74 lb-ft (100 Nm) at 5500 rpm
        
     
    
    
        
            Induction:
        
        
            Bosch Motronic Electronic Fuel Injection (EFI)
        
     
    
        
            Fuel Type:
        
        
            Unleaded premium gasoline (95 RON or higher recommended)
        
     
    
    
        
            Ignition:
        
        
            Digital electronic ignition (CDI)
        
     
 
    
    
    
        
            Length:
        
        
            Approx. 2150 mm (84.6 in)
        
     
    
        
            Width:
        
        
            Approx. 940 mm (37.0 in) over fairing
        
     
    
        
            Height:
        
        
            Approx. 1270 mm (50.0 in) to top of windshield
        
     
    
    
        
            Dry Weight:
        
        
            Approx. 214 kg (472 lbs)
        
     
    
        
            Wet Weight:
        
        
            Approx. 235 kg (518 lbs) with oil and full fuel tank
        
     
    
        
            Payload Capacity:
        
        
            Refer to manual for specific rider and luggage limits.
        
     
    
    
        
            Tank Capacity:
        
        
            Approx. 25 liters (6.6 US gal), including a 4-liter reserve
        
     
 
    
    
    
        
            ABS:
        
        
            Optional ABS II (Anti-lock Braking System) available on some models.
        
     
    
    
        
            Braking System Front:
        
        
            Dual 320 mm discs with four-piston calipers
        
     
    
        
            Braking System Rear:
        
        
            Single 265 mm disc with two-piston caliper
        
     
    
        
            Suspension Front:
        
        
            BMW Telelever
        
     
    
        
            Suspension Rear:
        
        
            BMW Paralever single-sided swingarm with monoshock
        
     
    
    
        
            Lighting:
        
        
            Halogen headlight, LED taillight, turn signals
        
     
    
        
            Instrumentation:
        
        
            Analog speedometer and tachometer, LCD multi-function display, warning lights.
        
     
 
    
    
    
        
            Instrumentation:
        
        
            Analog tachometer, analog speedometer, LCD multi-function display (clock, trip odometer, outside temperature, gear indicator on some versions), warning lights.
        
     
    
        
            Audio System:
        
        
            Optional accessory audio systems were available, but not standard.
        
     
    
    
        
            ABS:
        
        
            Optional ABS II system for enhanced braking control.
        
     
    
    
        
            Diagnostic Port:
        
        
            Features a diagnostic connector for accessing engine control unit (ECU) data, essential for advanced troubleshooting.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Typically every 10,000 km (6,000 miles) or annually, whichever comes first. Refer to manual for exact interval.
        
     
    
        
            Valve Clearance Interval:
        
        
            Typically every 20,000 km (12,000 miles). Refer to manual for exact interval.
        
     
    
        
            Brake Fluid Interval:
        
        
            Recommend flushing every 2 years, regardless of mileage.
        
     
    
        
            Spark Plug Interval:
        
        
            Refer to manual; often around 20,000-30,000 km (12,000-18,000 miles).
        
     
    
    
        
            Engine Oil Type:
        
        
            SAE 20W-50 or SAE 15W-50 motorcycle-specific oil, meeting BMW specifications (e.g., API SG/SH or higher). Consult manual for precise recommendations.
        
     
    
        
            Engine Oil Capacity:
        
        
            Approx. 3.5 liters (3.7 US qt) with filter change. Refer to manual.
        
     
    
        
            Brake Fluid Type:
        
        
            DOT 4 brake fluid.
        
     
    
        
            Transmission Fluid Type:
        
        
            Refer to manual; typically a GL-4 or GL-5 gear oil with appropriate viscosity for ambient temperatures.
        
     
    
    
        
            Common Wear Items:
        
        
            Clutch wear, rear shock absorber (especially on higher mileage units), fuel pump relay, fuel injector issues, alternator brushes.
        
     
    
        
            Electrical Gremlins:
        
        
            While generally robust, some owners report minor electrical issues related to connectors or the side stand switch.
        
     
    
        
            ABS System:
        
        
            ABS II systems can be sensitive to battery voltage; proper maintenance of the electrical system is crucial.
        
     
 
    
    
    
        
            Heritage:
        
        
            BMW Motorrad has a long history of producing innovative and durable motorcycles, particularly known for its boxer engines and shaft drive systems since the early 20th century.
        
     
    
    
        
            Predecessor:
        
        
            The R1100S evolved from BMW's boxer heritage, offering a sportier interpretation than the R100RS and R1100R models, focusing on agility and touring capability.
        
     
    
        
            Successor:
        
        
            The R1100S was eventually succeeded by the R1150RS and later the R1200ST and R1200RS models, continuing the sport-touring lineage.
        
     
    
    
        
            Manufacturing Location:
        
        
            Berlin, Germany (BMW Motorrad Plant)
        
     
    
        
            Production Total:
        
        
            Specific production numbers are not readily available but it was a popular model within the BMW lineup.
        
     
 
    
    
    
        
            Industry Awards:
        
        
            While specific awards for this model year are not detailed in the product description, the R1100S was generally well-regarded by motorcycle press for its engineering and performance.
        
     
    
    
        
            Rider Reviews:
        
        
            Consistently praised for its comfortable ride, powerful engine, and stable handling, particularly on winding roads and for touring.
        
     
    
    
        
            Emissions:
        
        
            Compliant with relevant emissions standards for its production years; details would be in the manual.