Porshe 911 (997). Manual - part 284

 

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Porshe 911 (997). Manual - part 284

 

 

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

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

1293

- Preliminary work
- General warning notes
- Removing front brake disc
- Installing
- Subsequent work

Tools

Designation

Type

Number

Explanation

brake piston resetting fixture

special tool

9472

Preliminary work

→ 440519 Removing and installing wheel

General warning notes

WARNING

Risk of accidents if brake pads and/or brake discs are not replaced in time.

Danger of injury and damage to vehicle if braking effect is impaired.

• 

→ The brake pads must be replaced when the brake pad warning indicator lights up, but no later than

when there is a residual pad thickness of 2 mm.

ATTENTION

1294

Increased risk of damage to brake discs when mounting/removing wheels.

The brake discs can be damaged.

• 

→ Use assembly aid (assembly pins) in order to exclude any possibility of heavy contact of the wheel

with the brake disc.

Removing front brake disc

WARNING

Risk of accidents if brake pads and/or brake discs are not replaced in time.

Danger of injury and damage to vehicle if braking effect is impaired.

• 

→ The brake pads must be replaced when the brake pad warning indicator lights up, but no later than

when there is a residual pad thickness of 2 mm.

ATTENTION

Increased risk of damage to brake discs when mounting/removing wheels.

The brake discs can be damaged.

• 

→ Use assembly aid (assembly pins) in order to exclude any possibility of heavy contact of the wheel

with the brake disc.

Note

In order to gain better access for removal of the brake calliper, it is beneficial to turn the wheels fully
either to the right or the left.

• 

1. Release retainer for plug of wear indicator on wheel carrier.

2. Disconnect the speed sensor on the ABS sensor.

3. Push brake pads back slightly and evenly using brake piston resetting fixture

9472

.

4. Undo brake calliper on wheel carrier and hang it in a suitable place in the wheel well (do not open the

brake hydraulics!).

5. Remove brake disc after unscrewing the fastening screw. If necessary, remove the brake disc by tapping it

gently with a rubber hammer.

Diagnostic system: reading out fault memory and activating systems

General warning notes

1295

Installing

WARNING

Risk of accidents if brake pads and/or brake discs are not replaced in time.

Danger of injury and damage to vehicle if braking effect is impaired.

• 

→ The brake pads must be replaced when the brake pad warning indicator lights up, but no later than

when there is a residual pad thickness of 2 mm.

ATTENTION

Increased risk of damage to brake discs when mounting/removing wheels.

The brake discs can be damaged.

• 

→ Use assembly aid (assembly pins) in order to exclude any possibility of heavy contact of the wheel

with the brake disc.

Do not confuse right and left brake discs during assembly!
Distinguishing characteristic: Part No.! The flat surface of the brake discs is marked with R = right or L = left.

Note

When replacing the brake discs due to wear, the brake discs on one axle must always be replaced.
Irrespective of wear, a brake disc change can be necessary on the brake disc friction surfaces due to edge
damage. In this case, only one brake disc can be replaced if the friction area surface of the other brake disc is
OK.

1. Check that all parts are in perfect condition and replace them if necessary.

2. Clean the levelling and centring surfaces on the brake disc and wheel hub. Then apply a very thin

coat of Optimoly TA to the centring surface on the wheel hub.

3. Fit the brake disc. Observe specified tightening torque. → 46 TW Tightening torques for brake mechanics -

Technical values

4. Fit the brake calliper. Replace the brake calliper fastening screws each time they are removed. Observe

specified tightening torque. → 46 TW Tightening torques for brake mechanics - Technical values

5. Install retainer for plug of wear indicator on wheel carrier.

6. Connect the speed sensor on the ABS

sensor.

7. Position disc brake pads by operating the brake several times.

Diagnostic system: reading out fault memory and activating systems

Removing front brake disc

1296

 

 

 

 

 

 

 

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