Mercedes-Benz C-Class 2006 Maintenance Booklet page 75

The composition of exhaust emissions is in-
fluenced not only by the special emission
control equipment, but also by various en-
gine 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 rath-
er 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.
Description of Emission System Maintenance Jobs
0101 Engine oil and filter change
Change the engine oil and oil filter every
10,000 miles. If oil consumption should in-
crease, determine the cause and take nec-
essary corrective steps. Reset the
Maintenance System counter.
0980 Replace air filter element
Under normal dust conditions, replace air fil-
ter element approximately every 40,000
miles or 4 years (CL-Class, S-Class, SL-Class
vehicles with engine 113) or 60,000 miles or
4 years (C-Class and CLK-Class vehicles
with engine 113, CL-Class, S-Class, SL-
Class with engine 275). Clean air filter cover
and housing prior to removal of air filter ele-
ment.
Maintenance Booklet
0780 Replace fuel filter
Replace the fuel filter approximately every
60,000 miles or 5 years.
1351 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 B-service. Replace poly-V-belt if nec-
essary.
1580 Replace spark plugs
Spark plugs are subject to electrode erosion
and must be replaced according to schedule
on page 70, or more frequently as may be
required when subject to severe operating
conditions.
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