Spark Plugs; Recommended Spark Plugs - Subaru 2012 Impreza Owner's Manual

3. Open the air cleaner case and remove
the air cleaner element.
4. Clean the inside of the air cleaner case
and case cover with a damp cloth and
install a new air cleaner element.
5. To install the air cleaner case, insert
the three projections on the air cleaner
case into the slits on the air cleaner case
cover.
6. Install in the reverse order of removal.
Maintenance and service

Spark plugs

It may be difficult to replace the spark
plugs. It is recommended that you have
the spark plugs replaced by your
SUBARU dealer.
The spark plugs should be replaced
according to the maintenance schedule
in the "Warranty and Maintenance Book-
let".
CAUTION
Make sure the cables are replaced in
the correct order.
& Recommended spark plugs
For the recommended spark plugs, refer
to "Electrical system" F12-7.
11-13