Transmission Gear Oil Change - BMW R850 Maintenance Manual

Transmission Gear Oil Change

Tools
hex bit socket – 8mm
socket – 13mm
ratchet
short extension
oil drain pan
carb or brake cleaner
torque wrench
clear tubing (tygon)
funnel
measuring cylinder (photo store)
rag
1. Put the bike on the centerstand.
2. Place the oil drain pan under the drain plug.
3. Remove the drain plug on the right side of the transmission just above the
brake pedal, 8mm hex bit socket. (some R1100 transmission drain plugs are just
below the fill plug, hidden up the "tunnel", 13mm socket).
4. Remove the fill plug on the right side of the transmission just above the drain
plug, 8mm hex bit socket.
5. Clean the metal filings from the magnetic drain plug using a rag and carb or
brake cleaner.
6. Install the drain plug using a new crush washer, torque to 22 ft.lb. (30 Nm).
(Some R1100's do not use a crush washer on the transmission drain plug).
(Some R1100's torque the drain plug to 17 ft.lb. (23 Nm)).
7. Fill the transmission with 1000cc (1.06 qt.) of synthetic gear oil using the
flexible tubing and a funnel – fill to the bottom edge of the filler hole. (Some
R1100's specify 800cc – check your owners manual)
Note: I use tygon tubing from the hardware store – one end goes into the fill hole
and a funnel is inserted into the other end.
8. Install the fill plug using a new crush washer, torque to 22 ft.lb. (30 Nm)
(Some R1100's torque the fill plug to 17 ft.lb. (23 Nm)).
Parts
gear oil, synthetic (75W/90) 1000cc
crush washers
- drain plug
- fill plug
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