Oil Filter - CITROËN DS4 Owner's Handbook Manual

Checks
Unless otherwise indicated, check these components in accordance with the servicing booklet and according to your engine.
Otherwise, have them checked by a CITROËN dealer or a qualified workshop.
Battery
The battery does not require any
maintenance.
However, check that the terminals
are clean and correctly tightened,
particularly in summer and winter.
When carrying out work on the battery, refer
to the "Practical information" section for
details of the precautions to be taken before
disconnecting the battery and following its
reconnection.
The presence of this label, in particular with
the Stop & Start system, indicates the use of
a specific 12 V lead-acid battery with special
technology and specification, for which the
involvement of a CITROËN dealer or a qualified
workshop is required when replacing or
disconnecting the battery.
Failure to observe this recommendation may
shorten the life of the battery.
Air filter and passenger compartment filter
Refer to the servicing booklet for
details of the replacement intervals
for these components.
Depending on the environment
(e.g. dusty atmosphere) and the use of the vehicle
(e.g. city driving), replace them twice as often if
necessary (refer to the "Engines" section).
A clogged passenger compartment filter may
have an adverse effect on the performance
of the air conditioning system and generate
undesirable odours.

Oil filter

Replace the oil filter each time
the engine oil is changed.
Refer to the servicing booklet for
details of the replacement interval for
this component.