Oil and filter change
≈ 10,000 km or 1 year
JASO MA or MA2 approved four-stroke motorcycle oil (JASO MB on scooters): an “energy conserving” car oil makes the wet clutch slip. Change it more often in city use or on track.
Source [1]R 1150 GS · 2002–2005
BMW R 1150 GS Adventure · 85 hp (2002 to 2005)
The BMW R 1150 GS Adventure uses the BMW Boxer 1130 Air petrol engine with 85 hp.
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Technical specifications
- Fuel
- Petrol
- Power
- 85 PS / 63 kW
- Displacement
- 1 130 cm³
- Cylinders
- 2
- Engine code
- BMW Boxer 1130 Air
- Period covered
- 2002–2005
- Documented market
- Europe
Transmission
- Manual · 6 speeds
Figures apply to the cited configuration and market; equipment and transmissions may vary by production date.
Specification source : [1] AutoKarnet
This version
85 hp (63 kW), shaft final drive, 6-speed manual. Built from 2002 to 2005.
AutoKarnet advice
In the range
It is the most powerful petrol version of this generation. The BMW Boxer 1130 Air engine is also fitted to: BMW R 1150 RT (R 1150 RT).
AutoKarnet advice
Body style and inspection points
On a motorcycle, tyres, final drive and brakes matter as much as the oil change. Check the tyre manufacturing date, steering-head play and fork-tube seals; an oil film on a tube means a fork seal needs replacing. A notched steering bearing can be felt when braking at low speed.
AutoKarnet advice
Distinguishing similar versions
Among the R 1150 GS pages, the Standard 85 hp offers a comparison: 85 hp (63 kW), BMW Boxer 1130 Air, 1 130 cm³, 6-speed manual, 2000–2004. The version on this page has 85 hp (63 kW), BMW Boxer 1130 Air, 1 130 cm³, 6-speed manual, 2002–2005. When requesting a quote, specify the output and gearbox; the marketing name alone does not identify the correct parts.
AutoKarnet advice
Maintenance and records
≈: estimated reference — the vehicle’s service indicator prevails.
Brake fluid
Every 2 years
Replace the fluid in both circuits (and the hydraulic clutch if fitted), whatever the mileage; dark fluid has absorbed moisture.
Source [1]Fork oil
≈ 30,000 km
Fork oil change and seal check; an oil film on the tubes means a seal needs replacing before it contaminates the brake caliper.
Source [1]Shaft drive
≈ 20,000 km
At each service: final-drive seal tightness, rear-wheel play and final-drive oil level or change as listed in the bike’s service book.
Source [1]Spark plugs
Every 20,000 km
Replace the full set; worn plugs raise consumption and cause misfires.
Source [1]Air filter
Every 40,000 km
Replace more often in dusty conditions.
Source [1]Valve clearance
Every 10,000 km
Check and adjust if needed, often together with the plugs; too little clearance burns the valves, too much makes the engine noisy.
Source [1]Questions about this version (3)
Which engine is in the BMW R 1150 GS Adventure?
The BMW Boxer 1130 Air petrol engine (1 130 cc), 85 hp (63 kW).
AutoKarnet advice
Which oil for the BMW R 1150 GS Adventure?
A JASO MA2 10W-40 four-stroke motorcycle oil suited to the BMW Boxer 1130 Air engine.
AutoKarnet advice
How do I check this page matches my car?
This page covers BMW R 1150 GS Adventure 85 hp, adventure bike, 2002–2005, with 85 hp (63 kW), BMW Boxer 1130 Air, 1 130 cm³, 6-speed manual, 2002–2005. Compare these details with the registration document and gearbox identification. The designation BMW Boxer 1130 Air may cover several revisions: a VIN is still needed to confirm part numbers.
AutoKarnet advice
Documentary sources
- [1] Rédaction AutoKarnet
AutoKarnet · FR · Europe · Synthèse éditoriale AutoKarnet · Accessed 09/10/2026