BMW AG Motorcycle (R 850 C, R 1200 C). Manual - part 27

46.5

Removing and installing rear 
mudguard

•

Take out the front retaining screws (1)

•

Remove the nuts at the rubber cover (2)

e

 Caution:

The locking lug (3) of the retaining elements must 
engage in the hole.
If necessary, bend the retaining element.

Removing/installing front mudguard

X 

Tightening torque:

Mudguard to slider tube bridge ...................... 8 Nm

C460020

1

3

2

CUB0050

46.6

Removing and installing front frame

•

Remove seat.

•

Remove side trim.

•

Remove fuel tank.

e

 Caution:

Switch off ignition.
Disconnect earth (ground) lead from battery.
Insulate earth (ground) lead.

•

Detach the Motronic control unit.

•

Unplug the wires in the central electrical equip-
ment box.

–

Instruments

–

Right combined switch

–

Left combined switch

–

Front brake light switch

–

Clutch switch

–

Front ABS sensor

•

Detach the cable straps from the wiring.

•

Detach the central electrical equipment box.

•

Unplug the ignition leads at the coil.

•

Remove the coil.

•

Disconnect the throttle cable at the twistgrip.

•

Drain fluid from brake system.

•

Drain the clutch operating system.

•

Separate the clutch line where it passes through 
the frame.

•

Detach the brake hose at the junction block/
frame.

•

Detach the brake lines at the junction block/
frame.

•

Detach the junction block at the frame.

•

Attach the engine holder.

•

Heat the ball joint mount at the leading link to 
max. 120 °C (248 °F) and detach it.

e

 Caution:

Avoid scratching the leading link.

•

Pull the leading link off its pivots and pull the tel-
escopic fork forwards.

•

Remove the suspension strut mount trim panel 
upwards.

•

Remove suspension strut.

•

Remove headlight.

•

Unplug and remove the flashing turn indicators.

•

Remove handlebar.

•

Loosen screw for cap at fork bridge mount on 
frame.

•

Use an M6 screw with a thread length of at least 
25 mm (0.98 in) to force off the cap at the fork 
bridge mount on the frame.

•

Before removing the threaded bearing journal at 
the fork bridge, heat it to max. 120 °C (248 °F), 
unscrew it and remove the telescopic fork.

L

 Note:

The screw pin is a press fit in ball thrust bearing: re-
move as a complete unit.

•

Detach the left air intake pipe from the cylinder 
head.

•

Remove the leading link caps.

•

Remove the left screw cap.

•

Remove the circlip at the right and take off the re-
taining cap.

•

Take out the screw at the right and pull the axle 
out to the left.

•

Remove the leading link.

C460060

46.7

•

Remove the horn.

•

Remove the air guides to the oil cooler.

•

Remove the oil cooler.

•

Remove frame.

L

 Note:

Only loosen the threaded connections at the lower 
rear frame.

•

Install by following the above work instructions in 
the reverse order.

X 

Tightening torque:

Fork bridge to frame 
(clean thread + Loctite 243)........................ 130 Nm
Threaded connections between frame and engine
Front ............................................................ 82 Nm
Rear ............................................................. 58 Nm

46.8

Removing and installing rear frame

•

Attach stand to motorcycle with extension bush-
ings, BMW No. 00 1 520/529.

•

Remove seat.

•

Remove side trim.

•

Remove fuel tank.

e

 Caution:

Switch off ignition.
Disconnect earth (ground) lead from battery.
Insulate earth (ground) lead.

•

Remove rear wheel.

•

Detach rear brake caliper.

•

Detach ABS sensor.

•

Detach speedometer signal transmitter.

•

Detach brake line cover on swinging arm.

•

Tie the swinging arm up to the frame with a strap.

•

Remove suspension strut.

L

 Note:

Press to the rear at the top.

•

Pull the swinging arm up with the strap.

•

Remove silencer (muffler).

L

 Note:

Alternately strike the silencer (muffler) rearwards 
with the palm of the hand or pull it.

•

Disconnect the oxygen sensor plug.

•

Remove rear wheel drive unit.

C460030

46.9

•

Detach the brake hose holder

•

Press off the left swinging arm bearing cap.

e

 Caution:

When installing, check that O-ring is in good condi-
tion.

•

Loosen the left swinging arm bearing.

•

Loosen screws for right swinging arm bearing.

•

Using pull rod, BMW No. 00 8 581, and impact 
weight, BMW No. 00 8 582, pull out the swinging 
arm bearing.

•

Remove the left swinging arm bearing.

•

Remove rear swinging fork.

•

Remove rubber sleeves for intake air pipes.

•

Pull brake fluid reservoir out of holder.

•

Remove the holder.

•

Detach the right plug retaining plate.

•

Pull off the air temperature plug.

•

Detach the gear lever.

•

Separate the throttle potentiometer and throttle 
positioner plugs at the left plug retaining plate.

•

Detach both fuse boxes at the plug retaining 
plate.

•

Separate the side (prop) stand switch plug.

•

Separate the neutral indicator switch plug.

•

Detach the left plug retaining plate.

•

Remove the injectors.

•

Pull off the injector line plugs.

•

Detach the breather hose at the air cleaner cas-
ing.

•

Disconnect the brake light switch plug and de-
tach the cable.

•

Detach the air cleaner casing.

•

Remove rear section of frame.

•

Remove fittings.

•

Install by following the above work instructions in 
the reverse order.

X 

Tightening torque:

Rear section of frame to engine
Pin ............................................................... 58 Nm
M10 bolt....................................................... 41 Nm
Rear section of frame to gearbox ................. 71 Nm

C330030

00 8 581

C330040

00 8 582

46.10

Removing/installing footrest 
supports

X 

Tightening torque:

Footrest support to engine
M12 bolt....................................................... 71 Nm
M8 bolt......................................................... 21 Nm
Brake master cylinder to footrest assembly .... 8 Nm
Brake pedal to footrest assembly ................. 37 Nm

Removing and installing side (prop) 
stand

•

Remove keeper (1) from side (prop) stand switch.

•

Pull off side (prop) stand switch (2).

•

Disconnect tension springs.

•

Remove side (prop) stand.

e

 Caution:

Note wiring paths.

Lubricant:.................. e.g. Staburags NBU 30 PTM 

X 

Tightening torque:

Side stand to pivot mount
(clean thread + Loctite 243).......................... 42 Nm

C460040

C460050

2

1

46.11

Checking running gear

Measuring wheel track offset

•

Place motorcycle on level ground on centre 
stand.

•

Place track alignment gauge, 
BMW No. 36 3 920, against the left or right side 
of the motorcycle.

L

 Note:

In order to use the track alignment gauge on either 
the left or right side, simply screw the supports in on 
the other side.

•

Adjust support (1) so that the measuring plane is 
as close as possible to the wheel centreline. The 
gauge must slide freely up to the motorcycle.

•

Adjust measuring stops (arrows) until they con-
tact the rim - not the tyre.

•

Attach hook (2) to wheel spoke to secure the 
gauge firmly to the wheel.

•

Align front wheel parallel with the gauge.

•

Measure distance between outer edge of gauge 
and wheel rim, using depth gauge (3) or ruler, 
and make a note of the dimension.

•

Calculate wheel track offset S:

•

Wheel track offset S is the distance to left or right 
between the longitudinal axes of the front and 
rear wheels.

Permissible 
wheel track offset (S): ...................  9 mm (0.35 in)

Key to measurement result:
Minus sign = track offset to left
Plus sign = track offset to right

36 3 920

C460070

1

1

2

1

3

46.12

EXAMPLE:

B

B

A

A

F

v

S

F

h

KR460480

Formula:

S = 

 –

Fixed value A
(length of measuring stops)

A = 50.0 mm (1.97 in)

Half of rear wheel rim width

 = 72.5 mm (2.85 in)

Measured value B
(mean value)

B = 70.0 mm (2.76 in)

Half of front wheel rim width

 = 54.5 mm (2.16 in)

Track offset S

S = 

 –

S = 122.5 mm – 124.5 mm (4.82 in – 4.92 in)

Track offset S = – 2.0 mm (– 0.10 in)

A

F

h

2

------

+

B

F

v

2

------

+









F

h

2

------

F

v

2

------

A

F

h

2

------

+

B

F

v

2

------

+







