Change the clutch fluid every 2 years at the latest (Inspection III)
Note: This description applies for the brake filling and bleeding unit with extraction of the brake fluid by a partial vacuum at the brake calliper.
If other devices are used, comply with their manufacturers' instructions.
- Place the motorcycle on its centre stand so that it is level.
- Remove the right skirt section.
Caution: Do not allow brake fluid to come into contact with painted parts of the motorcycle, because brake fluid destroys paint.
- Remove the top and bottom left handlebar trim panels.
- Remove the combination switch and radio remote control.
- Turn the handlebars to full right lock.
![](https://motoinstruction.ru/img/bmw/21/127063.jpg)
- Loosen the clamping screw (1).
- Rotate the clutch fitting so that the sealing surface on the reservoir cap is horizontal when viewed from the side.
- Tighten the clamping screw.
- Remove the reservoir cap together with the diaphragm.
![](https://motoinstruction.ru/img/bmw/21/127064.jpg)
- Add brake fluid up to the MAX mark (arrow).
- Remove the bleed hose for the clutch fluid from the right-hand skirt bracket.
- Remove the protective hose from the filler adapter.
![](https://motoinstruction.ru/img/bmw/21/127065.jpg)
- Remove socket-head grub screw (arrow) from the filling port.
- Install the bleed screw in the filler adapter.
- Connect the brake bleeding device to the bleed screw.
- Open the bleed screw by half a turn.
Caution: During the bleeding process, do not permit the brake fluid level to drop below the MIN mark, or else air will be drawn into the brake system. Bleed the system again if this happens.
Draw off brake fluid until it emerges clear and free from air bubbles.
Caution: Dispose of old brake fluid in an environmentally friendly manner.
![](https://motoinstruction.ru/img/bmw/21/127066.jpg)
- Draw off brake fluid until level reaches the MIN mark (arrow) in the reservoir.
- Installation is the reverse of the removal procedure: pay particular attention to the following.
Warning: The motorcycle must not be ridden without the grub screw screwed into the filling port.
- Remove the bleed screw; immediately wipe off brake fluid if it escapes when the adapter is removed.
- Install the socket-head grubscrew in the filler adapter and tighten.
- Pull the protective hose over the filling port.
- Secure the bleed hose to the right skirt with a cable tie.
![](https://motoinstruction.ru/img/bmw/21/127067.jpg)
- Return the clutch fitting to the marked position (arrow).
Note: Take care with the routing of the wires and cables when fitting the handlebar trim.
Brake fluid grade — DOT 4
Tightening torque:
- Grub screw — 10 Nm
- Clamping screw — 5 Nm
![](https://motoinstruction.ru/img/bmw/21/127068.jpg)