BMW AG Motorcycle (R 850 C, R 1200 C). Manual - part 28

51.1

Contents

Page

51

Removing and installing ignition switch/steering lock 

...........................................3

Removing and installing ignition/light switch

 ......................................................................3

Removing and installing lock barrel

 ........................................................................................3

Drilling out lock barrel ..........................................................................................................................3

Removing and installing lock barrel for fuel tank filler cap 

..................................4

Drilling out lock barrel ..........................................................................................................................4

51 Equipment

51.3

51

Removing and installing ignition 
switch/steering lock

•

Remove fork bridge.

•

With a 4 mm (0.16 in) dia. drill bit, drill about 
5 mm (0.20 in) deep into serrated screw (1).

•

Use an 8 mm (0.31 in) dia. drill bit to drill away the 
screw head.

•

Pull out the ignition switch/steering lock.

•

Unscrew and remove stud bolt with stud bolt ex-
tractor.

•

Install steering lock with serrated-screw socket 
wrench insert, BMW No. 51 0 510.

X 

Tightening torque:

Serrated screws
(thread cleaned + Loctite 270)...................... 15 Nm

Removing and installing ignition/light 
switch

•

Remove socket head cap screw (2).

Removing and installing lock barrel

•

Key in ON position/press in keeper (1) with a stiff 
wire or similar.

•

Pull out lock barrel with key.

•

Lubricate the new lock barrel with Shell 
Retinax A.

•

Insert the lock barrel with the key in the ON posi-
tion.

•

Press lock barrel down until keeper engages.

Drilling out lock barrel

•

Use a 4-5 mm (0.16-0.20 in) dia. drill bit to drill 
the full length of the lock barrel.

•

Repeat with a drill bit of larger diameter until the 
lock barrel can be removed.

RS510010

1

C510010

2

C510020

1

51.4

Removing and installing lock barrel 
for fuel tank filler cap

L

 Note:

Prevent screws from falling into fuel tank: cover fuel 
tank filler neck with cloth.

•

Open cap/remove lower part of cap (1). 

•

Insert key in lock barrel and press down on re-
tainer (2).

•

Pull out lock barrel with key.

•

Lubricate the new lock barrel with Shell 
Retinax A.

•

Install lock barrel with key (at a right angle to di-
rection of travel).

•

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

Drilling out lock barrel

•

Use a 4-5 mm (0.16-0.20 in) dia. drill bit to drill 
the full length of the lock barrel.

•

Repeat with a drill bit of larger diameter until the 
lock barrel can be removed.

GS510040

2

1

52.3

52

Removing and installing seat

•

Take out screw (1) for seat back.

•

Pull out the locking pin and take off the seat 
back.

C520010

C520020

1

61.1

Contents

Page

61

Technical data 

................................................................................................................................3

Removing and installing central electrical equipment box 

...................................5

Relay positions (central electrical equipment box) 

...................................................6

Connections to fuses:  .........................................................................................................................6

Frame wiring harness 

................................................................................................................7

Wiring harness
View from left

 ....................................................................................................................................8

Wiring harness
View from right

 ...............................................................................................................................12

61 General electrical equipment

61.3

61

Technical data

R 850 C

R 1200 C

Battery

Amp/h 19

61.5

Removing and installing central 
electrical equipment box

e

 Caution:

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

•

Detach the central electrical equipment box.

•

If necessary, detach the complete wiring harness 
and remove it with the central electrical equip-
ment box.

•

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

C610020

61.6

Relay positions (central electrical 
equipment box)

1. Flasher unit
2. Fuel gauge/display damping
3. Encoding plug for Motronic 
4. Starter motor relay
5. Lighting relay
6. ABS warning relay
7. Motronic relay
8. Fuel pump relay
9. Horn relay
10.Load-relief relay
11.Fuse

Connections to fuses:
(No. 1 on left, looking forwards)
1. Instrument cluster,

brake and rear lights ............................. 15 Amp

2. Parking light .......................................... 15 Amp
3. Flashing turn indicators, clock ............... 15 Amp
4. Power socket ........................................ 15 Amp
5. Motronic................................................ 15 Amp
6. Fuel pump ............................................. 15 Amp
7. Heated handlebar grips ........................... 4 Amp
8. Spare fuse............................................... 4 Amp
9. Spare fuse............................................. 15 Amp
10.Spare fuse............................................. 15 Amp

C610010

3

6

4

5

7

8

9 10

1

2