Peugeot 405 Manual

Air filter renewal (24000 Mile (40 000 km) / 2 Year Service)
Routine maintenance and servicing / Air filter renewal (24000 Mile (40 000 km) / 2 Year Service)


Note: On models from 1994, the maker’s specified interval for this procedure is 36 000 miles (60 000 km).

TU models
1 Slacken the retaining clips (where fitted), and disconnect the vacuum hose and breather hose from the front of the air cleaner housing-to-carburettor/throttle body duct (see illustration).

21.1 On TU models disconnect the hoses from the front of the duct . . .
21.1 On TU models disconnect the hoses from the front of the duct . . .

Where the crimped-type Peugeot hose clips are fitted, cut the clips and discard them; use standard worm-drive hose clips on refitting.

2 Slacken the retaining clip securing the duct to the carburettor/throttle body. Release the retaining clips securing the lid to the top of the air cleaner housing. Lift the duct and air cleaner lid assembly away, and position it clear of the air cleaner housing (see illustrations).

21.2a . . . then release the air cleaner lid retaining clips, and the duct
21.2a . . . then release the air cleaner lid retaining clips, and the duct clip . . .

21.2b . . . and remove the duct, positioning it clear of the air cleaner
21.2b . . . and remove the duct, positioning it clear of the air cleaner housing

3 Lift the air cleaner element out of the housing (see illustration).

21.3 Removing the air cleaner element on TU models
21.3 Removing the air cleaner element on TU models

4 Fit the new element into the housing, and secure it in position with the retaining clips.

5 Refit the sealing ring to the top of the filter (where fitted), and refit the air cleaner-tocarburettor/ throttle body duct. Ensure that the duct and its sealing rings are correctly seated, and securely tighten the retaining clips.

6 Reconnect the vacuum and breather hoses to the duct, and secure them in position with the retaining clips (where fitted).

XU models
(except XU10J4 16-valve) with side-mounted air cleaner 7 Disconnect the air duct from the filter housing cover to the carburettor/airflow meter at the filter housing end (see illustration).

21.7 Air filter housing cover located in the left-hand front of the engine
21.7 Air filter housing cover located in the left-hand front of the engine compartment

8 Release the clips and lift off the air cleaner top cover (see illustration).

21.8 Lifting off the top cover
21.8 Lifting off the top cover

9 Withdraw the filter element from the air cleaner body (see illustration).

21.9 Removing the air filter element
21.9 Removing the air filter element

10 Fit the new element in position in the air cleaner body making sure that it is the right way round.

11 Refit the top cover and attach the clips.

12 Reconnect the air duct.

XU models
(except XU10J4 16-valve) with top-mounted air cleaner 13 Slacken the retaining clip, and disconnect the inlet duct from the front of the cylinder head cover (see illustration).

21.13 Disconnect the intake duct from the front of the cylinder head cover .
21.13 Disconnect the intake duct from the front of the cylinder head cover . . .

14 Slacken and remove the two retaining screws situated at the front of the cylinder head cover, then release the two air filter cover retaining clips. Remove the filter cover from the cylinder head cover, and withdraw the filter element (see illustrations).

21.14a . . . then slacken the retaining screws (arrowed) . . .
21.14a . . . then slacken the retaining screws (arrowed) . . .

21.14b . . . and release the retaining clips
21.14b . . . and release the retaining clips

21.14c Lift off the filter cover . . .
21.14c Lift off the filter cover . . .

21.14d . . . and withdraw the filter element
21.14d . . . and withdraw the filter element

15 Fit the new element in position in the cylinder head cover. Refit the filter cover, and secure it with its retaining screws and clips.

16 Reconnect the inlet duct to the cylinder head cover, and tighten its retaining clip.

XU10J4 16-valve models
17 Disconnect the air duct and remove the cover from the end of the air cleaner body.

18 Withdraw the air filter element noting which way round it is fitted.

19 Fit the new element in the body, ensuring that it is fitted the correct way round.

20 Refit the cover and air duct.


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