Porshe 911 (997). Manual - part 129

- Removing air cleaner housing
- Installing air cleaner housing

Removing air cleaner housing

Removing air cleaner housing

Cable plug for switch resonator

1. The 3.8 l engine has a switch resonator installed in the air cleaner housing. In order to remove the

air cleaner housing, the cable plug must be disconnected from the electric switch-over valve -1- .

2. Unclip the tandem pump vacuum line from the air cleaner housing.

Air cleaner housing

3. Disconnect plug connection on the hot film mass air flow meter -2- . Press together the locking lever on

the plug and pull the plug off the flange. Unclip the connection lead at the omega clips.

3.1. Undo the threaded sleeve for the rubber moulding of the air cleaner housing from the throttle body -1-

Note

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Note the rubber sleeves for securing the air cleaner housing

• 

3.2. Unclip the oil filling pipe from the air cleaner housing -3- and then lift the air cleaner housing out

of the fastening lug -4- .

Vacuum line to switch resonator

4. Unclip the switch-over valve for the switch resonator from the housing bracket -1- detach the

vacuum line from the housing -2- and disconnect from the resonator.

Note

The air cleaner housing should not be cleaned on the outside with strong cleaning agents.

5. Lift the air cleaner housing completely out of the engine compartment. If necessary, the outside of

the housing can be cleaned using a damp cloth and some washing-up liquid. Then, lay the housing
on a soft surface to avoid scratching the painted surface.

Installing air cleaner housing

Installing air cleaner housing

Note

Note the rubber sleeves for securing the air cleaner housing

• 

Diagnostic system: reading out fault memory and activating systems

Removing air cleaner housing

674

Vacuum line to switch resonator

1. Route the vacuum line on the housing of the 3.8 l's air cleaner -2- and connect it to the resonator.

Connect the switch-over valve to the housing bracket -1- .

Air cleaner housing

2. Place the air cleaner housing in the engine compartment, placing it on the locating peg -4- . Pre-fit the

rubber part of the air cleaner on the throttle body. Ensure that both rubber mounts of the air cleaner
housing are located in the body.

2.1. Clip the oil filler pipe into the mounting point on the air cleaner housing

-3-

 .

2.2. Tighten the hose clamp for the rubber part connecting the air cleaner to the throttle body -1- .

2.3. Insert the cable plug for the hot film mass air flow sensor -2- and clip the connecting cable into the

omega clips on the air cleaner housing.

3. Clip the tandem pump vacuum line onto the air cleaner

housing.

Cable plug for switch resonator

4. Connect cable plug for switch resonator to switch-over valve -1- .

Diagnostic system: reading out fault memory and activating systems

Installing air cleaner housing

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997110, 997111, 997120, 997121, 997310, 997311, 997320, 997321, 997410, 997411, 997430, 997431,
997610, 997611, 997620, 997621

WARNUNG

Gefahr des Verlusts der Text-Bild-Zuordnung beim Ausdruck.

Aus technischen Gründen kann derzeit nicht ausgeschlossen werden, dass trotz
einwandfreier Darstellung auf dem Bildschirm beim Ausdruck der
Zusammenhang von Text und zugehörigem Bild verloren geht.

• 

Wird der Fehler nicht bemerkt, besteht die Gefahr, daß Arbeiten nicht korrekt
durchgeführt werden und es dadurch zu Personen- und Sachschäden kommt.

• 

→ Vergleichen Sie deshalb nach dem Druckvorgang unbedingt die Ausdrucke mit der
Bildschirmdarstellung. Korrigieren Sie die Ausdrucke im Fehlerfall so, daß der Inhalt der
Bildschirmdarstellung zutreffend wiedergegeben wird.

WARNING

Danger of losing text-figure correspondence when printing out.

For technical reasons, it can currently not be ruled out that the correspondence
between text and associated figure can be lost when it is printed out, even though
the display on the screen is correct.

• 

If the fault is not noticed, there is the danger that work will not be performed
correctly which can cause injury and damage.

• 

→ Therefore, always compare printouts with the screen display after printing them out. Correct
the printouts if they are faulty so that the content of the screen display matches that on the
printouts.

AVERTISSEMENT

Risque de perte de la correspondance texte-illustration lors de l'impression papier.

Pour des raisons techniques, il ne peut pas être exclu à l'heure actuelle que, même
en cas d'affichage correct à l'écran, la correspondance entre le texte et l'illustration
puisse être erronée sur l'impression papier.

• 

Si l'erreur passe inaperçue, on court le risque d'exécuter certaines opérations de
manière incorrecte pouvant conduire à des dommages corporels et matériels.

• 

→ Comparez impérativement pour cette raison les impressions papier avec l'affichage à l'écran.
Corrigez-les en cas d'erreur de manière à reproduire correctement l'affichage à l'écran.

ATTENZIONE

Diagnostic system: reading out fault memory and activating systems

Installing air cleaner housing

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