🏷️ Basic Information

Make:

BMW

Model:

R1100 / R850 Series

Product Type:

Service and Repair Manual

Product Format:

PDF Download

Publication Date:

February 2000

Language:

English

Applicable Models:

R1100RT, R1100RS, R850/1100GS, R850/1100R

👋 Introduction

Positioning:

Essential technical documentation for owners and technicians of the BMW R1100 and R850 series motorcycles, providing factory-level repair and maintenance information.

Comparison:

Directly comparable to original BMW workshop manuals used by dealerships, offering a comprehensive alternative to generic Haynes or Clymer manuals for in-depth technical work.

Features:

Dealer-level accuracy, comprehensive system coverage, detailed diagrams, troubleshooting guides, and step-by-step repair procedures.

Benefit To Owner:

Empowers owners to perform maintenance and repairs with confidence, saving time and money, and ensuring the longevity and optimal performance of their motorcycle.

Value Proposition:

This manual is the same type of resource used by certified technicians, offering unparalleled insight into the intricate workings of the R1100/R850 series.

📋 Manual Details

Primary Coverage:

Comprehensive maintenance, servicing, diagnostics, and repair procedures for specified BMW R series motorcycles.

Secondary Coverage:

Includes detailed diagrams, technical specifications, and troubleshooting guides.

Estimated Page Count:

Varies based on specific model variants within the R1100/R850 series, typically a comprehensive volume.

Type:

Factory Service Manual (FSM) / Workshop Manual

File Format:

PDF

Compatibility:

All versions of Windows & Mac

Requirements:

PDF Reader

📖 Manual Coverage

Engine Mechanical:

Engine Top End, Crankshaft/Transmission, Engine Lubrication System, Engine Removal/Installation, Pistons, Rings, Rods, Crankshaft, Valve train, Camshaft, Cylinder Head, Cylinder Block.

Fuel And Cooling:

Fuel System, Carburetor, Fuel Pump, Fuel Filter, Cooling System, Radiator, Oil Radiator, Oil Cooling.

Drivetrain And Suspension:

Clutch, Transmission, Final Drive, Wheels/Tires, Suspension, Steering.

Chassis And Electrical:

Frame, Electrical System, Wiring Diagrams, Sensors, Ignition, Battery, Starter, Alternator.

Braking:

Brakes, Brake Pads, Brake Discs, Brake System Components.

Routine Maintenance:

Oil Change, Transmission Fluid Change, Filter Replacements (Air, Fuel, Oil), Spark Plug Replacement, Tire Rotation, Brake Pad Replacement, Clutch Adjustment.

Diagnostic Procedures:

Troubleshooting guides for common issues, fault code diagnosis, electrical system diagnostics, engine performance checks.

Repair And Rebuild:

Engine disassembly and reassembly, transmission overhaul, clutch replacement, suspension component replacement, electrical component repair, brake system bleeding and repair.

Installation And Adjustment:

Component installation, alignment procedures, torque specifications for critical fasteners, carburetor synchronization.

Depth:

Comprehensive, covering basic maintenance to advanced engine and electrical system overhauls. Suitable for both novice DIYers and professional technicians.

Detail Level:

Detailed step-by-step instructions with clear explanations and numerous diagrams/illustrations.

Special Tools:

Identifies specific tools or equipment required for certain procedures, often with illustrations.

Troubleshooting Charts:

Includes structured troubleshooting charts for identifying and resolving common problems.

Appendix:

Contains supplementary information such as torque specifications, fluid capacities, wiring diagrams, and technical data.

📊 Manual Specifications

Format:

PDF

Searchability:

Typically searchable text within the PDF for quick information retrieval.

Printability:

Printable pages, allowing users to create physical copies of sections or the entire manual.

Quality:

High-resolution scans ensuring clarity of text and diagrams.

Type:

N/A (Digital PDF)

Type:

N/A (Digital PDF)

⚙️ Engine Specifications

Engine Type:

Air/Oil-cooled, four-stroke Boxer Twin

Engine Displacement:

R1100: 1085cc; R850: 848cc

Bore X Stroke:

R1100: 99mm x 70.5mm; R850: 85mm x 73mm (approximate, check specific model for exact figures)

Compression Ratio:

R1100: 10.3:1; R850: 9.3:1 (approximate, check specific model)

Horsepower:

R1100RT/RS/R/GS: Approx. 90-95 HP; R850: Approx. 70-75 HP (exact figures vary by model and tuning)

Torque:

R1100: Approx. 98 Nm (72 lb-ft); R850: Approx. 78 Nm (58 lb-ft) (exact figures vary by model and tuning)

Fuel Delivery:

Bosch Motronic Fuel Injection (with specific injector types and ECU mapping per model)

Fuel Type:

Unleaded gasoline (Octane rating as specified in manual, typically 91 RON or higher)

Fuel Tank Capacity:

Varies by model (e.g., R1100RT approx. 25 liters)

Fuel Pump Type:

Electric, in-tank or external depending on specific model

🔧 Transmission

Type:

5-speed constant mesh gearbox

Type:

N/A (typically manual transmission only for these models)

Clutch Type:

Single dry plate clutch (actuated hydraulically)

Final Drive:

Shaft drive to rear wheel

Gear Ratios:

Specific ratios detailed within the manual for each gear.

Transmission Fluid Type:

Manual transmission fluid (e.g., SAE 75W-90 GL-5, refer to manual for exact specification)

📐 Dimensions

Length:

Varies by model (e.g., R1100RT significantly longer due to fairing)

Width:

Varies by model (influencing by handlebars and fairing)

Height:

Varies by model (e.g., R1100RT typically taller)

Dry Weight:

R1100 models: Approx. 230-260 kg; R850 models: Approx. 220-250 kg (varies by model and equipment)

Gross Vehicle Weight Rating:

Typically around 450-480 kg, refer to manual for specific model GVWR.

🛡️ Safety Features

Crash Test Results:

Motorcycles are not subject to standardized crash testing in the same manner as automobiles. Safety is assessed through design and component integrity.

Braking System:

Advanced ABS II (Anti-lock Braking System) or integral ABS systems on many models, providing enhanced braking control. Disc brakes front and rear.

Lighting:

Halogen headlights, comprehensive indicator lights, brake lights. RT models feature integrated fog lights.

Frame Construction:

Steel tubular frame designed for stability and rider protection.

Fairings And Bodywork:

Full or partial fairings on RT and RS models offer wind protection and contribute to rider safety and comfort. GS models have robust bodywork for off-road use.

Ergonomics:

Designed for rider comfort and control during long rides.

💡 Technology Features

Audio System:

Optional radio/cassette or CD player systems were available, particularly on R1100RT models. Many owners opt for aftermarket solutions.

ABS:

BMW's Integral ABS (or ABS II) was a significant technological feature, providing advanced anti-lock braking for increased safety. The manual details its operation and maintenance.

Cruise Control:

Optional cruise control systems were available on some R1100 models, especially touring variants. The manual covers its basic operation and troubleshooting.

Diagnostics:

On-board diagnostics (OBD) systems are integrated, with the manual providing access to diagnostic connectors and interpretation of system feedback.

Motronics:

Bosch Motronic engine management system, controlling fuel injection and ignition timing, detailed within the manual's electrical and fuel system sections.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000 km or 12 months, whichever comes first. Refer to manual for exact intervals and oil type.

Major Service Interval:

Intervals for valve clearance checks, spark plug replacement, and other major services are detailed in the manual, often around 20,000 km or specific timeframes.

Engine Oil:

High-quality synthetic or semi-synthetic motorcycle engine oil (e.g., SAE 20W-50 or 15W-40, refer to manual for specific grade and API/JASO rating).

Coolant:

Ethylene glycol-based coolant with corrosion inhibitors, typically a 50/50 mix with distilled water for liquid-cooled components (if applicable).

Brake Fluid:

DOT 4 or DOT 5.1 hydraulic brake fluid (refer to manual for specific type and bleeding procedures).

Final Drive Oil:

Hypoid gear oil, SAE 90 or 85W-90 (API GL-5 recommended, refer to manual for exact specification).

Common Wear Items:

Clutch wear, fuel pump reliability, alternator output, fork seal leaks, paralever pivot bearing wear, ABS system components.

Electrical Gremlins:

Some older models can experience minor electrical issues related to wiring harnesses, connectors, or component aging. The manual's wiring diagrams are crucial for diagnosis.

Importance Of Manual:

Adhering to the maintenance schedules and procedures outlined in this manual is critical for preventing costly repairs and ensuring the long-term reliability of these complex machines.

📚 Vehicle History

Heritage:

BMW Motorrad boasts a long and distinguished history of producing high-quality motorcycles, known for their engineering, durability, and innovation, particularly with their boxer engines.

Evolution R Series:

The R1100/R850 series represented a significant modernization of BMW's Boxer platform, featuring DOHC (Double Overhead Camshaft) engines, fuel injection, and advanced chassis designs compared to previous R100 models.

Model Variants:

The R1100 RT (Touring), RS (Sport Touring), GS (Adventure), and R (Standard Roadster) models all shared the core engine and drivetrain, but featured distinct chassis components, bodywork, suspension travel, and intended use.

Production Years:

R1100 models generally produced from the mid-1990s to early 2000s (e.g., R1100GS from 1993, R1100RT from 1994). R850 variants were introduced shortly after or concurrently.

Manufacturing Location:

Germany (BMW Motorrad plant)

🏆 Awards & Recognition

Industry Recognition:

The R1100/R850 series models were generally well-received by the automotive press and riders for their performance, comfort, and innovation, earning them a strong reputation in the sport-touring and adventure categories.

Reliability Perception:

While robust, these models require diligent maintenance due to their complexity. With proper care as detailed in this manual, they are known for good long-term reliability.

Manual Standard:

Follows industry standards for technical documentation, providing the same level of detail and accuracy as official BMW factory service manuals.