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Important information
Regular maintenance is a must for a reliable and good motorcycle. Under normal driving conditions you can do the service a few hundred km sooner or later.
Subsequent you will find technical data as well as maintenance and service information.
We make no claim to completeness or accuracy of all data, these are only for your information.

Spares for BMW R850GS, BMW R1100GS, BMW R1150GS and BMW R1150GS Adventure

Technical data

Parts list for maintenance intervals/service for BMW R850GS 1998-2001
Parts list for maintenance intervals/service for BMW R1100GS 1994-1999
Parts list for maintenance intervals/service for BMW R1150GS 1999-2004
Parts list for maintenance intervals/service for BMW R1150GS Adventure 2002-2005

Model BMW R850GS 1998-2001
Volume (ccm) 848
Cylinders 2
Power (HP) 34
Power (KW) 25
Weight (kg) 262
Seat height (mm) 840
Idle speed (R/Min) 1000 ± 150
Injection Injection
Tyre pressure front (bar) 2,2 (2,5)
Tyre pressure rear (bar) 2,5 (2,9)
Spark plug 1 NGK BKR7EKC
Spark Plug 1 NGK BKR7EIX
Standpipe 35 mm Telelever
Drive Cardan
Fork oil per rod SAE 10W
Engine Oil Without Filter 3,5 L SAE 15W-50
Engine Oil With Filter 3,75 L min. API SJ
Gearbox Oil 800 ml SAE 90 GL-5
Break Fluid DOT 4
Final Drive Oil 230 ml SAE 90 GL-5
Fuel tank volume 25
Coolant air-/oil-cooled

Running-in Check / 600 miles (1.000 km) service:

Reading fault memory with BMW Motorrad diagnostic system (R1150GS & Adventure)
Change oil when engine at regular operating temperature, renew oil filter
Changing oil in gearbox, warmed to normal operating temperature
Oil change, rear wheel drive
Tightening cylinder head
Adjusting valve clearance
Checking freedom of movement of throttle cable and checking for kinks and chafing
Checking clutch play
Tightening hose clamp at intake manifold
Checking front and rear brake fluid level
Checking swinging arm bearing
Checking operation of side-stand switch
Checking security of rear wheel screws
Checking security of screws for adjustable handlebars
Checking idle speed
Checking/adjusting synchronisation
Checking throttle valves
Checking spoke tension
Checking tire pressures and tread depth
Checking lights and signalling equipment
Test ride as final inspection and function check
Confirming BMW Service in on-board documentation
Tension Poly-V belt (R1100GS)
Lubricating side-stand pivot mounts (R1150GS & Adventure)

6.000 miles (10.000 km) service (30.000 km / 50.000 km):

Reading fault memory with BMW Motorrad diagnostic system (R1150GS & Adv.)
Change oil when engine at regular operating temperature, renew oil filter
Changing oil in gearbox, warmed to normal operating temperature
Oil change, rear wheel drive
Adjusting valve clearance
Checking condition of spark plugs
Checking battery acid level
Cleaning and greasing battery terminals
Checking freedom of movement of throttle cable and checking for kinks and chafing
Checking clutch play
Checking front and rear brake pads for wear
Checking front and rear brake discs for wear
Checking front and rear brake fluid level
Changing brake fluid, front and rear brakes
Checking swinging arm bearing
Lubricating side stand
Lubricating nipple of clutch cable
Checking operation of side-stand switch
Checking idle speed
Checking/adjusting synchronisation
Checking throttle valves
Checking spoke tension
Checking tire pressures and tread depth
Checking lights and signalling equipment
Tension Poly-V belt
Test ride as final inspection and function check
Confirming BMW Service in on-board documentation
Checking clutch fluid level (R1150GS & Adv.)
Change the clutch fluid (every 4 years, R1150GS & Adv.)
Greasing side stand pivot (R1150GS & Adv.)

12.000 miles (20.000km) service (40.000 km / 60.000 km):

Reading fault memory with BMW Motorrad diagnostic system (R1150GS & Adv.)
Change oil when engine at regular operating temperature, renew oil filter
Changing oil in gearbox, warmed to normal operating temperature
Oil change, rear wheel drive
Adjusting valve clearance
Replacing spark plugs
Replace the fuel filter (every 40.000 km)
Checking front and rear brake pads for wear
Checking front and rear brake discs for wear
Checking front and rear brake fluid level
Visual inspection of the brake pipes, brake hoses and connections
Changing brake fluid, front and rear brakes
Checking wheel bearings
Checking swinging arm bearing
Lubricating side stand
Lubricating nipple of clutch cable
Checking operation of side-stand switch
Checking idle speed
Checking/adjusting synchronisation
Checking throttle valves
Checking spoke tension
Checking tire pressures and tread depth
Checking lights and signalling equipment
Test ride as final inspection and function check
Confirming BMW Service in on-board documentation
Tension Poly-V belt (R1100GS)
Checking clutch fluid level (R1150GS & Adv.)
Change the clutch fluid (every 4 years, R1150GS & Adv.)
Checking rear wheel bearing play by tilting wheel (R1150GS & Adv.)
Greasing side stand pivot (R1150GS & Adv.)

Maintenance Intervals / Maintenance Schedule / Customer Service for Your BMW R850GS, BMW R1100GS, BMW R1150GS & Adventure

 

Welcome to the comprehensive service and maintenance guide for the versatile adventure enduros from the brand BMW – specifically for the models BMW R850GS, BMW R1100GS, BMW R1150GS, and BMW R1150GS Adventure. Regular maintenance ensures riding pleasure, reliability, and value retention of your motorcycle. At Hornig, you will find suitable spare and wear parts as well as service kits to keep your machine in optimal condition.

 

Recommended Maintenance Intervals – Overview

The GS series with air/oil-cooled boxer engine and shaft drive stands for adventure readiness – however, only consistent maintenance preserves technology, performance, and safety.

  • Break-in / Initial Check: After approx. 1,000 km – check oil level, filters, visual and functional inspection of important components.
  • Standard Inspection: Usually every 10,000 km or once a year – including oil change, filter change, visual and functional checks, as well as inspection and if necessary adjustment of valve clearance.
  • Major Service: Every 20,000 km or every two years – with extended scope (e.g., air filter, spark plugs, brake fluid, drive/shaft check).
  • Brake and Operating Fluid Changes: Brake fluid at least every 1–2 years; check and change gearbox and final drive oil depending on use and time intervals.

Note: Specifications may vary slightly depending on model year, equipment, and usage profile – please also consult the owner's manual or maintenance booklet.

 

Typical Tasks in the Maintenance Schedule for the GS Models

  • Change engine oil & oil filter (including new sealing rings and filter element).
  • Check valve clearance and adjust if necessary – especially important for the air/oil-cooled boxer engines of this GS series.
  • Filter changes: air filter, fuel filter – depending on usage and environment.
  • Inspect braking system: check brake pads, discs, lines, and brake fluid condition and function.
  • Tires, wheels & steering: tread depth, air pressure, play-free operation, visual inspection for damage.
  • Drive / gearbox: check oils, inspect shaft drive, bearings, and seals.
  • Electrical system & lighting: check battery, clean connections, check lights and signaling systems.
  • General visual inspection: check for leaks, fasteners, cables, and hydraulic or cable controls.

 

Service Parts & Maintenance Kits from Hornig

For your GS models, Hornig offers a wide range of high-quality spare and wear parts as well as maintenance kits – specifically tailored to the requirements of the BMW R850GS, BMW R1100GS, BMW R1150GS, and BMW R1150GS Adventure. These include among others:

  • Engine and gearbox oils in suitable specifications
  • Oil filters, air and fuel filters, sealing rings, shaft seals
  • Spark plugs, ignition cables, electrical components
  • Brake pads, brake discs, and brake fluid
  • Batteries, chargers, and cable connection sets
  • Shaft drive / final drive parts, bearings, lubrication, and seals

With the right kits, you can complete standard tasks faster and more safely – both in your home garage and at a professional workshop.

 

Practical Tips for Owners of the GS Adventure Enduros

  • Keep a complete service documentation – regularly maintained machines retain value and are more convincing at resale.
  • Use only spare parts and operating fluids with suitable specifications for air/oil-cooled boxer engines.
  • For intensive use (offroad, short distances, heavy loads), shorter intervals make sense.
  • Longer storage periods or winter break? Then remove the battery, perform oil change beforehand, and stabilize the fuel.
  • Safety first: Have brake, suspension, or complex electrical work done by a specialist workshop if in doubt.

 

Implement Your Maintenance Schedule Now & Order Parts

Keep the recommended maintenance intervals for your GS models to ensure riding pleasure, technology, and value. With the high-quality service products and spare parts from Hornig, you can perform all tasks efficiently, reliably, and professionally. Discover the right range now – specifically for BMW R850GS, BMW R1100GS, BMW R1150GS, and BMW R1150GS Adventure. Start your order or contact our team for individual advice.

 

Note: This information is provided as a guideline. For binding intervals and inspection scope, please consult your vehicle’s owner's manual or a qualified specialist workshop.