BMW 630CS - Page 74

74 Aircleaner, fuel tilters
The air cleaner e[ement in the intake air
silencer should be renewed during a
BMW lnspection every 15000 km (10000
miles), or at more frequent intervals,
depending on the amount of dust nor-
mallyencountered.
An air cleaner element blocked with dust
or dirt will increase fuel consumption and
reduce engine output.
BMW 630 CS
Open the snap fasteners, take off the
cover and remove the element.
BMW 633 Csi
Disconnect the hose clip (1) on the
flexible gaiter between the airflow meter
and the air cleaner at the airflow meter
end.
Pull the flexible gaiter away from the air-
flow meter and lift the air cleaner out of
its mounting (2). Release the snap fasten-
ers and take out the element (3).
Fuel filter -BIVIW 633
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and the main fuel filter renewed.
Fjne mesh strajner in carburetor fee.
Iine (BMW 630 CS):
Detach fuel line at carburetor, remo`e
mesh strainer and wash in clean gasolirE
(petroI).
Fìenewing the main fuel filter
(BIVIW 633 Csi):
1. Slacken the fuel hose and filter retain-
ing clips.
2. Pull off the hoses and renewthe corn-
plete filter.
Warning: When installing the filter, note
the correct direction of fuel flow sho\hr
on the instruction label.