Audi A8 2003 - Plenum Chamber and Water Drains: Checking for Dirt

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– Check for dirt in housing and water drains -2- and clean if nec‐
essary ⇒ page 101 .
– Insert new air filter element centrally in mounting in air cleaner
(bottom section).
– Carefully fit air cleaner (top section) onto air cleaner (bottom
section) without applying any significant force, and tighten
bolts to specified torque (see table of tightening torques for
installation ⇒ page 99 ). Ensure that air cleaner (top section)
is flush with air cleaner (bottom section) and that it is not fitted
at an angle.
Continue installation in reverse sequence. Note tightening torque
⇒ page 99 .
– Repeat procedure on opposite side of vehicle.
3.48.8 Cleaning air cleaner housing
Procedure:
– Remove any loose dirt or leaves out of air cleaner housing (top
and bottom sections).
– Check whether water drain hose in air cleaner (bottom section)
is dirty or blocked and clean if necessary.
Note
♦ When cleaning air cleaner housing with compressed air: Cov‐
er air mass meter with a clean cloth.
♦ On vehicles for cold countries, the snow screen in the intake
section must also be cleaned; see specification in ELSA Main‐
tenance table.
3.49 Plenum chamber and water drains:
checking for dirt
Checking plenum chamber and water drains for dirt
⇒ page 102
Cleaning plenum chamber and water drains ⇒ page 102
3.49.1 Checking plenum chamber and water
drains for dirt
Cleaning the plenum chamber, as well as the removal procedures
required, are a repair measure and should be charged separately.
Steps for removal:
– Pull off rubber seal -1- on plenum chamber cover.
– Take out plenum chamber cover -2- and -3-.
Step 1 - checking plenum chamber and water drains (passenger's
side):
– Use a hand-held light to check for dirt in plenum chamber and
water drains.
Audi A8 2003 ➤
Maintenance - Edition 06.2014
3. Maintenance 101