🏷️ Basic Information

Make:

BMW

Model:

R1100RT, R1100RS, R1100GS

Model Variant:

RT (Touring), RS (Sport-Touring), GS (Adventure)

Platform Code:

R259 (Modular Boxer Platform)

👋 Introduction

Target Audience:

BMW R1100 series owners, independent motorcycle repair shops, and professional technicians.

Value Proposition:

Provides the same in-depth technical information used by authorized BMW service centers, enabling owners to perform all maintenance and repairs, saving significant costs.

Comparison To Alternatives:

Superior to generic online forums or basic owner's manuals, offering authoritative, manufacturer-level data for all repair scenarios.

Completeness:

Covers all models (RT, RS, GS) and all repair aspects from A-Z.

Format Convenience:

Easy-to-read PDF format allows for quick searching and access to information.

📋 Manual Details

Applicable Model Years:

2000 onwards (covering the entire R1100 series production lifecycle)

Engine Variants Covered:

1085cc Boxer-Twin (R259)

Chassis Variants Covered:

RT, RS, GS

Estimated Page Count:

Comprehensive (typically 500+ pages for a full workshop manual, exact count not provided but implied by 'Full & Complete')

Type:

Service Repair Workshop Manual

Language:

English (assumed based on typical industry practice for this market)

Format:

PDF

📖 Manual Coverage

Engine:

Complete disassembly, assembly, diagnosis, and repair of the 1085cc boxer-twin engine, including valve adjustment, timing, fuel injection, ignition system, oil system, and cooling.

Transmission:

Service and repair of the 5-speed gearbox, clutch (dry single plate), final drive, and driveshaft.

Suspension:

Detailed procedures for front Telelever suspension (RT/RS), Paralever rear suspension, shock absorber service, and fork seal replacement.

Brakes:

Comprehensive coverage of the BMW Integral ABS (Anti-lock Braking System), including hydraulic system bleeding, caliper service, brake pad replacement, and ABS module diagnostics.

Electrical:

Full wiring diagrams, troubleshooting guides for lighting, starting system, charging system (alternator, voltage regulator), instrument cluster, and electronic control units (ECU).

Fuel System:

Bosch Motronic fuel injection system, throttle body service, fuel pump, fuel filter replacement, and injector diagnostics.

Bodywork And Chassis:

Fairing removal and installation, seat service, fuel tank maintenance, frame inspection, and accessory fitting (e.g., luggage systems for RT/GS).

Maintenance:

Scheduled maintenance (oil changes, filter replacements, spark plugs, air filters), brake fluid flush, coolant replacement, valve clearance checks.

Troubleshooting:

Systematic diagnostic procedures for common and uncommon faults, fault code interpretation (if applicable via diagnostic tools).

Repair:

Step-by-step repair instructions for all major components, including engine rebuilds, transmission overhauls, suspension work, and electrical system fixes.

Disassembly Assembly:

Detailed procedures for complete disassembly and reassembly of all major vehicle systems and components.

Depth:

Professional-level detail, suitable for experienced mechanics and advanced DIY enthusiasts. Covers everything from basic service to complete engine and transmission overhauls.

📊 Manual Specifications

Format:

PDF

Searchability:

Searchable text (implied for professional PDF manuals)

Resolution:

High-resolution, suitable for printing individual pages or the entire manual.

Binding:

N/A (Digital PDF format)

Paper:

N/A (Digital PDF format)

⚙️ Engine Specifications

Engine Type:

Air-cooled, four-stroke, boxer-twin engine with four valves per cylinder

Displacement:

1085 cc (66.2 cu in)

Bore X Stroke:

99 mm x 70.5 mm (3.89 in x 2.78 in)

Compression Ratio:

10.0:1

Power Output:

Approx. 90 hp (67 kW) at 6750 rpm (specific to model variant, RT slightly lower than GS/RS)

Torque:

Approx. 70 lb-ft (95 Nm) at 5250 rpm (specific to model variant)

Top Speed:

Varies by model (RT approx. 120 mph, GS approx. 125 mph)

Fuel Injection:

Bosch Motronic 2.2 electronic fuel injection with digital engine management

Fuel Type:

Unleaded premium gasoline (95 RON / 91 AKI)

Fuel Capacity:

Approx. 21 liters (5.5 US gal) for RT/RS, 20 liters (5.3 US gal) for GS

🔧 Transmission

Type:

5-speed manual gearbox

Clutch:

Dry, single-plate clutch, hydraulically operated

Options:

N/A (All R1100 models featured a manual transmission)

Final Drive:

Shaft drive via Paralever single-sided swingarm

📐 Dimensions

Wheelbase:

Approx. 1430-1440 mm (56.3-56.7 in), varies slightly by model

Seat Height:

Adjustable, typically around 760-820 mm (30-32 in) for RT/RS, higher for GS

Dry Weight:

RT: ~245 kg (540 lbs), RS: ~230 kg (507 lbs), GS: ~240 kg (529 lbs) (approximate)

Gross Vehicle Weight Rating:

Typically around 450-480 kg (992-1058 lbs)

🛡️ Safety Features

Crash Test Data:

N/A (Motorcycle safety ratings are not typically standardized like automotive) - manual covers design for safety.

Braking System:

BMW Integral ABS (Anti-lock Braking System), typically with linked braking (lever operation affects front and rear).

Lighting:

Halogen headlight (dual bulb on RT/RS for low/high beam), LED taillight/brake light.

Frame Construction:

Steel tube frame providing excellent rigidity and impact absorption.

Ergonomics:

Designed for rider comfort and control across different riding styles.

💡 Technology Features

Instrumentation:

Analog tachometer, digital speedometer, odometer, trip meters, fuel gauge, engine temperature gauge (warning light), gear indicator (on some models/aftermarket additions), clock.

Audio Options:

Optional radio/cassette player integrated into fairing (especially on RT).

ABS:

BMW Integral ABS (Generation 1), offering advanced anti-lock protection for both wheels.

Cruise Control:

Optional cruise control system available on RT and RS models.

Diagnostics:

On-board diagnostics accessible via specific tools (e.g., BMW GT1 or similar aftermarket diagnostic systems).

🔧 Maintenance

Oil Change:

Every 10,000 km (6,000 miles) or annually.

Filter Replacement:

Oil filter with every oil change; Air filter every 20,000 km (12,000 miles).

Valve Adjustment:

Every 20,000 km (12,000 miles).

Spark Plugs:

Inspect every 20,000 km (12,000 miles), replace as needed.

Brake Fluid Flush:

Every 2 years.

Engine Oil:

SAE 20W-50 API SG or higher (e.g., BMW Motorrad Advantec Ultimate Performance 20W-50 or equivalent).

Engine Oil Capacity:

Approx. 4.0 liters (4.2 US qt) with filter change.

Transmission Oil:

SAE 75W-90 API GL-5 synthetic gear oil.

Transmission Oil Capacity:

Approx. 0.25 liters (0.26 US qt).

Final Drive Oil:

SAE 80W-90 API GL-5 gear oil.

Final Drive Oil Capacity:

Approx. 0.20 liters (0.21 US qt).

Brake Fluid:

DOT 4 brake fluid.

Coolant:

BMW Motorrad Coolant (ethylene glycol-based) mixed 50/50 with distilled water. Do NOT use plain water.

Common Problems:

Hall sensor failure (leading to intermittent running issues), fuel pump relay failure, clutch slave cylinder leaks, ABS modulator issues (especially with age), worn wheel bearings, and charging system issues (voltage regulator).

Preventative Maintenance:

Regular cleaning of the Hall sensor connector, checking fuel pump relay contacts, inspecting clutch slave cylinder for leaks, and ensuring proper battery maintenance can prevent many common issues.

📚 Vehicle History

Manufacturer:

Bayerische Motoren Werke AG (BMW)

Motorcycle Division Legacy:

Long history of innovation in motorcycle design, particularly with boxer engines dating back to the R32 in 1923.

Predecessor:

R100RT, R100RS, R100GS series

Introduction Year:

R1100 RT/RS/GS series introduced in the early 1990s (around 1993-1994), with '2000 Onward' indicating continued support and updates.

Key Innovations:

Introduction of the 1100cc boxer engine, Telelever front suspension (RT/RS), Paralever rear suspension, and Integral ABS.

Manufacturing Location:

Berlin, Germany (BMW Motorrad plant)

Production Period:

Mid-1990s through early 2000s, with the R1100GS continuing until 1999 and the RT/RS models being largely superseded by the R1150 series.

🏆 Awards & Recognition

Industry Accolades:

The R1100 series was highly acclaimed for its technological advancements, touring capability (RT), sporty performance (RS), and ruggedness (GS), establishing BMW's dominance in these segments.

Long Term Reliability:

Generally considered very reliable when properly maintained, with strong owner loyalty.