Target Audience:
BMW R 850 C owners, independent motorcycle mechanics, and BMW dealerships
Manual Advantage:
Provides manufacturer-sourced technical data, ensuring accuracy and completeness beyond generic aftermarket guides
Information Source:
Directly sourced technical details from the manufacturer
Coverage Comprehensiveness:
Covers all essential maintenance, repair, and diagnostic procedures for the specific model
Engine Systems:
Engine overhaul, fuel system, ignition system, lubrication, cooling system, exhaust system, emission controls
Transmission Drivetrain:
Clutch, gearbox, final drive, driveshaft maintenance and repair
Chassis Suspension:
Front fork, rear suspension, wheels, tires, braking system (front and rear), steering system
Electrical Electronics:
Battery, charging system, lighting, instrumentation, starter motor, ignition, fuel injection control, ABS (if equipped), basic wiring diagrams
Bodywork Frame:
Frame inspection, body panel removal/installation, fairings, seating, luggage systems
Maintenance Procedures:
Scheduled maintenance, oil changes, filter replacements, spark plug service, brake fluid flush, clutch fluid flush, cable adjustments, battery maintenance
Repair Procedures:
Engine rebuilds, transmission overhaul, suspension component replacement, brake caliper service, electrical component troubleshooting and replacement, fuel injector cleaning/replacement
Troubleshooting:
Diagnostic procedures, common fault finding, symptom-based troubleshooting guides
Diagnostic Level:
Comprehensive diagnostic information, including sensor data interpretation and fault code analysis (where applicable)
Rebuild Depth:
Detailed step-by-step instructions for major component rebuilds and overhauls
Specification Detail:
Torque specifications, clearances, tolerances, fluid types, capacities, and electrical values
PDF Quality:
High-resolution, searchable PDF with clear diagrams and text
Paper Type:
Durable, high-quality paper suitable for workshop environments
Binding:
Professional binding (e.g., perfect bound or spiral bound) for easy page turning and durability
Engine Type:
Air-cooled, four-stroke, flat-twin (Boxer) engine
Displacement:
848 cc (approximate, based on R850 series)
Bore X Stroke:
Specifications vary by exact model year, typically around 90.0 mm x 66.0 mm
Power Output:
Approximately 70 hp (52 kW) at 7000 rpm (for R850 series, actual may vary)
Torque Output:
Approximately 77 Nm (57 lb-ft) at 5000 rpm (for R850 series, actual may vary)
Fuel Delivery:
Electronic Fuel Injection (EFI), typically Bosch Motronic
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON + MON / 2)
Ignition Type:
Digital electronic ignition, dual spark plugs per cylinder
Cooling Method:
Air-cooled with oil cooling assistance
Oil Type:
Synthetic or semi-synthetic motorcycle engine oil, API SG/SH or higher, JASO MA/MA2
Oil Capacity:
Approximately 3.0 - 3.5 liters (depending on oil filter change)
Transmission Type:
5-speed manual transmission
Clutch Type:
Dry, single-plate, diaphragm spring clutch
Final Drive:
Shaft drive with universal joint and final drive bevel gear
Gearbox Oil Type:
SAE 75W/90 GL-5 hypoid gear oil (or specified BMW fluid)
Gearbox Oil Capacity:
Approximately 0.5 - 0.7 liters
Length:
Specifications vary by year and market, consult manual for exact figures
Width:
Specifications vary by year and market, consult manual for exact figures
Height:
Specifications vary by year and market, consult manual for exact figures
Dry Weight:
Approximately 235-245 kg (depending on equipment)
Gross Vehicle Weight Rating:
Typically around 450 kg
Fuel Tank Capacity:
Approximately 20 liters (including reserve)
Safety Standards:
Designed to meet or exceed relevant national and international motorcycle safety standards of its production era
Braking System:
Disc brakes, front and rear. BMW Integral ABS (optional or standard depending on market/year) may be present, featuring combined braking operation.
Lighting:
Halogen headlight, LED taillight (depending on year), turn signals
Frame Construction:
Steel tube frame providing structural integrity
Ergonomics:
Comfortable riding position for touring, designed to reduce fatigue
Instrumentation:
Analog speedometer, tachometer, odometer, trip meter, fuel gauge, engine warning lights, indicator lights.
ABS:
Integral ABS was an option on many models, providing enhanced braking safety.
Diagnostic Port:
On-board diagnostics (OBD) port for electronic fault diagnosis (specific connector type and access may vary).
Oil Change Interval:
Typically every 10,000 km or 12 months, whichever comes first. (Consult manual for precise interval).
Filter Replacement:
Oil filter: every oil change. Air filter: typically every 20,000 km or as needed. Fuel filter: typically every 40,000 km or as needed.
Spark Plug Service:
Inspect and gap every 10,000 km, replace as needed. Dual plugs per cylinder.
Valve Adjustment:
Typically inspected every 20,000 km, adjustment as necessary using shims.
Brake Fluid Type:
DOT 4 brake fluid
Clutch Fluid Type:
DOT 4 brake fluid (if hydraulic clutch)
Final Drive Oil Type:
SAE 75W/90 GL-5 hypoid gear oil (or specified BMW fluid)
Common Wear Items:
Clutch wear, front fork seals, brake pads, wheel bearings
Electrical Issues:
Relay failures, starter motor issues, and corroded connectors can occur over time, especially with exposure to elements.
Fuel System Issues:
Fuel pump issues or injector clogging can arise with age and fuel quality, particularly if the bike sits unused.
Manufacturer Origin:
Germany
Bmw Motorcycles:
BMW Motorrad has a long history of producing innovative and durable motorcycles, particularly known for their boxer engines and shaft drive.
R Series Heritage:
The R 850 C is part of BMW's R series, which has been in continuous production for decades. The 'C' designation typically indicates a cruiser or custom variant.
Production Period:
The R 850 C was produced primarily in the late 1990s and early 2000s (e.g., 1997-2004, specific dates vary by market).
Manufacturing Location:
Berlin, Germany
