Porshe 911 (997). Manual - part 273

 

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Porshe 911 (997). Manual - part 273

 

 

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

Pericolo di perdita dell'abbinamento testo-immagine nella stampa.

Per motivi tecnici non è escluso che, nonostante la rappresentazione sullo schermo
risulti perfetta, durante la stampa venga persa la corrispondenza fra testo e
relativa immagine.

• 

Se tale difetto non viene rilevato vi è il pericolo che i lavori non siano eseguiti
correttamente; ciò può avere come conseguenza lesioni e danneggiamenti.

• 

→ Per questo motivo, dopo la stampa è assolutamente necessario confrontare le stampe con la
rappresentazione sullo schermo. In caso di errore si prega di correggere le stampe, così da
garantire la riproduzione esatta della rappresentazione sullo schermo.

ADVERTENCIA

Al imprimir se corre el riesgo de perder la correcta asignación de las figuras al texto.

Por motivos técnicos, por el momento no se puede descartar que, aun siendo
correcta la imagen que aparezca en la pantalla, al imprimir se pierda la
correlación entre el texto y la figura correspondiente.

• 

Si este error pasara desapercibido, existe el riesgo de que los trabajos no se
ejecuten de forma correcta y, por tanto, se produzcan daños personales y
materiales.

• 

→ Por ello le rogamos que tras el proceso de impresión compare siempre las copias impresas con
la imagen de la pantalla. En caso de error, corrija las copias impresas de forma que se
correspondan con el contenido de la imagen de la pantalla.

Diagnostic system: reading out fault memory and activating systems

Subsequent work

1249

- Notes on removing/mounting tyres

Notes on removing/mounting tyres

Note

Before fitting, it should be established whether a tyre pressure monitoring system is present! The tyre
valve serves as the distinguishing characteristic. Without tyre pressure control system: rubber valve,
with tyre pressure control system: aluminium valve. If an RDK is present, observe the special notes
for the tyre pressure monitoring system. → 44  Mounting tyres for vehicles with and without tyre
pressure monitoring system (RDK) - see section on "Special notes for tyre pressure monitoring system
(RDK)"

• 

The mounting machine described here is particularly suitable for large tyre combinations, such as
those used by Porsche.

• 

All parts in contact with the wheel and the tyres are made of plastic.

• 

No large point load for wheel and tyres.

• 

Tools

1250

A

-

Holding-down device 9539 - For holding down tyre bead, see Workshop Equipment Manual,
Chapter Special Tools

B

-

Assembly aid - commercially available; refer to Workshop Equipment Manual, Chapter 2.5

C

-

Adhesive weight remover - commercially available

D

-

Mounting lever - commercially available

Notes on removing/mounting tyres

Note

When fitting tyres, the direction of rotation and the inner and outer sides should be noted.

• 

Use only TIP TOP Universal, order No. 593 0601 (3.5 kg bucket) or Contifix as the mounting paste.

• 

Ensure that no damage (scoring, soiling) is caused to the assembly head of the fitting machine during
fitting. Such damage may result in paint damage and pressure marks on the rim flange.

• 

Diagnostic system: reading out fault memory and activating systems

Tools

1251

–  Avoid slipping on to the rim flange. Use rim flange protection (assembly aid)

-B-

 .

–  Adhesive tape can be used to protect the rim flange in individual cases, in order to prevent any paint

damage during fitting. The mounting lever can also be covered with adhesive tape in order to avoid
damaging the area around the spokes during removal.

–  The valve must always be replaced when changing a tyre.

–  Check the wheel for

damage.

Special notes for tyre pressure monitoring system (RDK)

Note

If the previous wheels are still in the vicinity after assembly work (for example changing winter tyres
and/or wheels from another vehicle with tyre pressure monitoring system), they might still be
recognised by the system. If one or more of these wheels has a minimum pressure of more than 0.4
bar below the required pressure, this can trigger a warning in the instrument cluster. In this case,
remove the other wheels or use the PIWIS Tester to tune the vehicle to be outside the radio range of
these wheels.

• 

The remaining life span can be read out with the PIWIS Tester. Where a tyre change is about to be
made, it is advisable to read out the remaining life span of the wheel electronics (based on the battery
capacity).

• 

For vehicles with a tyre pressure monitoring system, the valve and wheel electronics -A- are only
replaced in exceptional cases. The following points can make replacement necessary.

• 

The valve must be replaced if:

The wheel electronics are removed

• 

The self-locking fastening screw is loose

• 

The union nut is loose

• 

The valve leaks at valve seat

• 

And the valve body is bent or broken.

• 

Diagnostic system: reading out fault memory and activating systems

Notes on removing/mounting tyres

1252

 

 

 

 

 

 

 

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