Caution: Disconnect ground lead from battery and insulate.
- Remove left and right fairing side sections.
Warning: Comply with safety precautions when handling or working with fuel.
- Remove fuel tank.
See Group 16.
- Remove Motronic control unit.
See Group 13.
- Remove the right-hand air intake pipe.
- Remove the air output from the right-hand radiator.
- Press the right radiator forward out of its holder.
![](https://motoinstruction.ru/img/bmw/21/127579.jpg)
- Release the nine fasteners (arrows). Take off both covers.
![](https://motoinstruction.ru/img/bmw/21/127580.jpg)
- Pull out relay holder (1) and plug holder (2).
- Open the cable ties (arrows).
![](https://motoinstruction.ru/img/bmw/21/127581.jpg)
- Disconnect ground cable (4).
- Remove screw (3) securing connector strip for Motronic control unit.
- Remove the seal at the rear and push the connector strip inwards.
![](https://motoinstruction.ru/img/bmw/21/127582.jpg)
- Remove screws (5, 6, 7).
- Remove brake lines from holder on housing.
- Removing housing.
- Installation is the reverse of the removal procedure: pay particular attention to the following.
Caution: Make sure that the seal in the cover of the electronics box is correctly seated.
Tightening torques:
- Electronics box to main frame — 9 Nm