Page 53 of 162

451Riding
Catalytic converterIf misfiring causes unburned 
fuel to enter the catalytic con-
verter, there is a danger of 
overheating and damage.
For this reason, observe the 
following points:
– Do not ride the motorcycle 
with the fuel tank empty.
– Do not run the engine with 
the spark-plug cap removed.
– In the event of engine misfir-
ing, stop the engine immedi-
ately.
– Only refuel using unleaded 
fuel.
– Be sure to adhere to the 
prescribed maintenance 
intervals.
Unburned fuel destroys 
the catalytic converter.
Note the points listed for 
protection of the catalytic 
converter.c
Risk of fireHigh temperatures occur at 
the exhaust pipe.
If highly flammable mate-
rials (e.g. hay, leaves, 
grass, clothing and luggage, 
etc.) make contact with the hot 
exhaust pipe, they can start to 
burn.
Ensure that no highly flamma-
ble materials can come into 
contact with the hot exhaust 
system.c
–If the engine runs for a 
longer period when the 
motorcycle is stationary, the 
cooling is inadequate and 
overheating can occur. In 
extreme cases, the motorcy-
cle could catch fire.
Do not let the engine run for 
unnecessary periods when the motorcycle is stationary. 
After starting, move off 
immediately.c
Manipulation of the engine 
electronics control unit
Manipulation of the engine 
electronics control unit can 
cause damage to the motorcy-
cle and therefore lead to acci-
dents. Do not manipulate the en-
gine electronics control unit.c
Any manipulation of the 
engine electronics 
control unit can lead to 
mechanical loads for which 
the components of the motor-
cycle are not configured. Dam-
age caused in this way invali-
dates the warranty.
Do not manipulate the engine 
electronics control unit.c 
     
        
        Page 108 of 162
Maintenance6106
Do not touch the glass of 
new bulbs with your 
fingers. Use a clean, dry cloth 
when fitting. Dirt deposits, in 
particular oil and grease, 
interfere with heat radiation 
from the bulb. This will result in 
overheating and therefore 
shorten the service life of the 
bulbs.c
You will find an overview 
of the types of screw 
used on (
b 124).c
Replacing the low-beam 
headlight bulb
During the work 
described below, a 
motorcycle that has been 
parked unsafely can fall over. 
Make sure that the motorcycle 
is parked securely.cThe bulb is pressurised, 
injuries may result if the 
bulb is damaged. 
Wear protective goggles and 
gloves when changing 
bulbs.c
To achieve better acces-
sibility, turn the handle-
bars to the right.c
• If necessary, switch off the 
ignition.
• Loosen the cover 1 by 
turning it anticlockwise and 
remove it.• Pull off the connector 2.
• Remove the spring wire 
brackets 3 from their detents 
on the left and right and fold 
them up. 
     
        
        Page 121 of 162

7119
Care
Do not use steam jet cleaners 
or high-pressure cleaners.cPlasticsClean plastic parts with water 
and BMW plastic care 
emulsion. This includes in 
particular:
– Windscreens
– Headlight lenses made of 
plastic
– Covering glass of the 
instrument cluster
– Black, unpainted parts
If plastic parts are 
cleaned using unsuitable 
cleaning agents, the surfaces 
can be damaged.
Do not use cleaning agents 
that contain alcohol, solvents 
or abrasives to clean plastic 
parts. "Fly sponges" or spong-
es with hard surfaces can also 
lead to scratches.cSoften resilient dirt and 
insects by applying a wet 
cloth.c
WindscreenRemove dirt and insects with a 
soft sponge and lots of water. 
Fuel and chemical 
solvents attack the 
windscreen.
Do not use cleaning agents.cChromeEspecially in the case of road 
salt, carefully clean chrome 
with plenty of water and BMW 
vehicle shampoo. Use chrome 
polish for additional treatment.RadiatorClean the radiator regularly to 
prevent overheating of the 
engine due to inadequate cooling. For example, use a 
garden hose with low water 
pressure. 
Cooling fins can be bent 
easily. 
When cleaning the radiator, 
ensure that the fins are not 
bent.c
Paint careRegular washing of the motor-
cycle counteracts the long-
term effects of materials that 
damage the paint, especially if 
your motorcycle is ridden in 
areas with high air pollution or 
natural sources of dirt, e.g. 
tree resins or pollen.
However, remove particularly 
aggressive materials immedi-
ately; otherwise changes in 
the paint or discolouration can 
occur. These include, e.g., 
spilt fuel, oil, grease, brake