🏷️ Basic Information

Make:

BMW

Model:

K1100LT

Year:

1999

Vehicle Code:

K1100LT

👋 Introduction

Positioning:

The BMW K1100LT was positioned as a premium touring motorcycle, offering comfort, performance, and sophisticated engineering for long-distance travel.

Competitors:

Competed with other large-displacement touring motorcycles from brands like Honda (e.g., GL1500 Gold Wing), Kawasaki (e.g., GTR1000), and Yamaha (e.g., FJ1200).

Touring Amenities:

The 'LT' designation signifies 'Luxus-Tourer' (Luxury Tourer), highlighting its extensive fairings, comfortable seating for rider and passenger, luggage capacity (often with integrated panniers and top case), and robust wind protection.

Engineering:

Known for BMW's distinctive inline-four Boxer engine, shaft drive, and advanced suspension designs for its era.

📋 Manual Details

Primary Coverage:

Complete factory service and repair for BMW K1100LT

Secondary Coverage:

Maintenance, troubleshooting, diagnostics, overhaul

Estimated Pages:

Hundreds (specific count not provided, but described as comprehensive)

Type:

Factory Service Repair Manual

Language:

English

Format:

Downloadable PDF

📖 Manual Coverage

Engine:

Detailed information on the K1100LT's 4-cylinder Boxer engine, including fuel injection, ignition, cooling, and exhaust systems.

Transmission:

Coverage of the 5-speed gearbox, clutch operation, and final drive.

Chassis And Suspension:

In-depth data on the frame, front and rear suspension (including BMW's Paralever and Telelever systems where applicable to this model evolution), steering, and wheels.

Braking System:

Comprehensive details on the hydraulic braking systems, ABS (if equipped), brake lines, calipers, discs, and master cylinders.

Electrical System:

Extensive coverage of the battery, charging system, starter, lighting, instrumentation, and ECU (Engine Control Unit) diagnostics.

Fuel System:

Information on the fuel pump, injectors, fuel lines, and tank venting.

Bodywork And Fairings:

Procedures for disassembly, assembly, and repair of body panels, fairings, and associated trim.

Maintenance:

Routine maintenance tasks, service intervals, fluid changes, filter replacements, and lubrication points.

Troubleshooting:

Systematic diagnostic procedures for identifying and resolving common and uncommon issues.

Repair:

Step-by-step repair instructions for all major mechanical and electrical components.

Overhaul:

Detailed instructions for complete engine, transmission, and suspension component overhauls.

Specifications:

Torque specifications, clearances, and critical measurement data for all components.

Electrical Diagnostics:

Wiring diagrams, connector pinouts, and troubleshooting guides for electrical faults.

Depth:

Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts. Covers from basic maintenance to complete engine rebuilds.

📊 Manual Specifications

Format:

PDF

Quality:

High-resolution, allowing for clear printing of all diagrams and text.

Binding:

N/A (Digital PDF format)

Paper:

N/A (Digital PDF format, printable on standard paper)

Searchability:

Likely searchable text within the PDF for quick access to information.

Printability:

Enables printing of entire manual or select pages.

⚙️ Engine Specifications

Engine Type:

Four-stroke, water-cooled, inline four-cylinder Boxer engine

Displacement:

1093 cc (1.1 liters)

Bore X Stroke:

72.0 mm x 67.5 mm

Compression Ratio:

10.0:1

Valve Train:

DOHC, 4 valves per cylinder

Horsepower:

Approx. 90 hp (67 kW) at 7500 rpm (specifications vary slightly by market and exact model configuration)

Torque:

Approx. 96 Nm (71 lb-ft) at 6000 rpm

Fuel Delivery:

Bosch Motronic electronic fuel injection (EFI) with sequential ignition

Fuel Type:

Unleaded gasoline

Cooling Method:

Liquid-cooled (water-cooled)

Oil Capacity:

Approx. 4.5 liters (with filter change)

Oil Type:

API SG or higher, SAE 20W-50 or SAE 15W-50 (refer to manual for precise BMW recommendations)

🔧 Transmission

Transmission Type:

5-speed manual gearbox

Clutch Type:

Dry single-plate clutch, hydraulically operated

Final Drive:

Shaft drive

Gear Ratios:

Specific gear ratios are detailed within the manual, crucial for performance tuning and diagnostics.

Transmission Oil:

Refer to manual for specific gear oil type and capacity. Typically SAE 90 or equivalent.

📐 Dimensions

Length:

Approx. 2310 mm (90.9 in)

Width:

Approx. 890 mm (35.0 in) over fairings

Height:

Approx. 1420 mm (55.9 in) to top of windscreen

Dry Weight:

Approx. 264 kg (582 lbs)

Wet Weight:

Approx. 287 kg (633 lbs)

Gross Vehicle Weight Rating:

Refer to manual for specific GVWR

Fuel Tank Capacity:

Approx. 21 liters (5.5 US gal), including a reserve of approx. 3.5 liters (0.9 US gal)

🛡️ Safety Features

Crash Test Ratings:

N/A (Motorcycle safety ratings differ from automotive; focus is on rider protection systems and handling).

ABS:

Optional BMW Motorrad ABS (Anti-lock Braking System) available on some models, significantly enhancing braking safety.

Lighting:

Dual headlights for enhanced visibility, comprehensive taillight and turn signal array.

Frame Construction:

Robust steel frame designed for stability and rider support.

Fairing Design:

Full fairing with adjustable windscreen for rider protection from wind, weather, and debris.

💡 Technology Features

Dashboard Instrumentation:

Comprehensive analog and digital instrumentation including speedometer, tachometer, fuel gauge, engine temperature gauge, gear indicator, clock, and warning lights.

Audio System:

Many K1100LT models were equipped with an integrated radio/cassette player and speakers as part of their touring package.

ABS:

Optional ABS system represents a significant safety technology for its time, enhancing braking control.

Diagnostic Port:

Likely features a diagnostic port for connecting to BMW's diagnostic tools, essential for fault code reading and system checks covered in the manual.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000-10,000 km (3,000-6,000 miles) or annually. Refer to manual for precise interval.

Major Service Interval:

Valve clearance checks and adjustments typically at 20,000-30,000 km (12,000-18,000 miles). Refer to manual.

Spark Plug Replacement:

Refer to manual for specific mileage recommendation, often around 20,000 km.

Engine Oil Type:

BMW Motorrad High Performance SAE 20W-50 or equivalent meeting API SG/SH or JASO MA specifications.

Brake Fluid Type:

DOT 4 brake fluid

Coolant Type:

Ethylene glycol based coolant with corrosion inhibitors, typically a 50/50 mix with distilled water.

Common Wear Items:

Fuel pump, fuel injectors, aging rubber hoses, clutch slave cylinder, ABS modulator (if equipped), and suspension seals are common areas for inspection and potential replacement due to age.

Electrical Gremlins:

Like many vehicles of this era, occasional electrical connection corrosion or intermittent faults can occur. The manual's detailed wiring diagrams are essential for diagnosis.

Critical Torques:

The manual provides essential torque specifications for engine components (e.g., head bolts, crankcase bolts), suspension fasteners, and wheel nuts.

📚 Vehicle History

Heritage:

BMW Motorrad has a long-standing reputation for engineering excellence, reliability, and innovation in motorcycle manufacturing, dating back to the early 20th century.

K Series Lineage:

The K1100LT is part of BMW's pioneering K-Series, which featured the revolutionary transverse-mounted inline-four 'flying brick' engine architecture, first introduced in the K100.

K1100 Development:

The K1100 series, including the LT variant, evolved from the earlier K100 and K1100RS models, refining engine power, chassis dynamics, and touring comfort.

Production Years:

The K1100LT was produced from 1992 to 1999. The 1999 model represents one of the final iterations.

Manufacturing Location:

Germany

🏆 Awards & Recognition

Industry Acclaim:

While specific awards for the 1999 K1100LT are not readily detailed, the K-Series and the LT variant were consistently praised for their build quality, comfort, and long-distance capability by motorcycle publications of the era.