Mercedes-Benz G 2012 Service Booklet page 14

Description of Emission System Maintenance
12
Description of Emission System
Maintenance Jobs
The composition of exhaust emissions is
influenced not only by the special emission
control equipment, but also by various
engine components and their adjustments.
Therefore, emission system maintenance
must include these engine components.
Some maintenance jobs are actually only
tests. They are important however, because
they allow early detection of discrepancies
which can later lead to increased exhaust
emissions. It is generally less expensive to
have such items adjusted immediately rather
than allowing them to contribute to costly
repairs. The maintenance intervals have
been determined so that the vehicle, under
normal conditions, should operate properly
between services.
Engine oil and filter change
Change the engine oil and oil filter according
to the specifications outlined in this booklet
for your vehicle. If oil consumption should
increase, determine the cause and take
necessary corrective steps. Do not reset
the Maintenance System service indicator if
the oil is topped up or changed outside the
respective km interval or 1 year.
G
Warning!
Please make sure you read the technical documentation, such as the Operator's Manual and
workshop information, before carrying out any maintenance work.
Replace engine air filter
Under normal dust conditions, replace
engine air filter according to the
specifications outlined in this booklet for
your vehicle. Clean engine air filter cover and
housing prior to removal of engine air filter.
Under severe dusty operating conditions the
engine air filter element must be replaced
more frequently.
Replace fuel filter
Replace the fuel filter according to the
specifications outlined in this booklet for
your vehicle.
Check engine poly-V-belt condition
The poly-V-belt is subject to wear and aging.
It must be checked for cracks and wear
at every Service 2. Replace poly-V-belt if
necessary.
Replace spark plugs
Spark plugs are subject to electrode erosion
and must be replaced according to the
specified maintenance intervals, or more
frequently as may be required when subject
to severe operating conditions.