Description Of Emission System Maintenance Jobs; Maintenance Service Descriptions - Mercedes-Benz C-Class Maintenance Booklet

Maintenance service descriptions

10
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 every
10,000 miles or 1 year. If oil consumption
should increase, determine the cause and
take necessary corrective steps. Do not reset
the Maintenance System service indicator if
the oil level is adjusted or changed outside
the interval of 10,000 miles or 1 year.
Replace air filter
Under normal dust conditions, replace the air
filter at every 40,000 miles or 4 years. In
vehicles with engine 275 replace the air filter
at every 60,000 miles or 6 years. Clean air
filter cover and housing prior to removal of air
filter.
Replace fuel filter
Replace the fuel filter every 150,000 miles or
15 years. In diesel vehicles replace every
G
Warning!
20,000 miles or 2 years and in SL-Class and
G-Class vehicles every 60,000 miles or
6 years.
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.
Evacuate and fill up AdBlue
Fill up AdBlue
Evacuate and fill up AdBlue
20,000 miles or 2 years.
Maintenance service descriptions
Vehicle Maintenance Service Work
(including Emission System
Maintenance)
i Maintenance services should be
performed at the number of miles or years
(whichever comes first) as indicated.
If your vehicle exceeds the time or mileage
of the maintenance service descriptions,
continue to maintain the vehicle following
the maintenance services specified in the
High Mileage section (
Detailed descriptions for each
maintenance service can be found starting
on ( Y
For description of emission system
maintenance jobs, see (
Please make sure you read the technical documentation, such as
the Operator's Manual and workshop information, before carrying
out any maintenance work.
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every 10,000 miles or 1 year.
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Y page 78).
page 11).
Y page 10).
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every