20

Parts kit, fasteners

4FO 698 998 A

4

Ribbed bolt M12x75

N 90961102

Rear axle

GT Diamond Series
Quantity

Designation

Part No.

Remarks

20

Parts kit, fasteners

4FO 698 998 D

Front axle

4

Hexagon bolt M14x35

N 105 029 01

20

Parts kit, fasteners

4FO 698 998 A

4

Socket head bolt M12x75

N 909 611 02

Rear axle

GT 560. GT Speed. GT Speed Series 51. GTC Speed
Quantity Designation

Part No.

Remarks
Front axle

20

Parts kit, fasteners

4FO 698 998 D

4

Hexagon bolt M14x38

N 908 768 01

20

Parts kit, fasteners

4FO 698 998 A

4

Socket head bolt M12x75

N 90961102

Rear axle

GT Supersports and GT Supersports Convertible
Quantity Designation

Part No.

Remarks
Front axle

20

Parts kit, fasteners

4FO 698 998 D

4

Hexagon bolt M14x38

N 908 768 01

20

Parts kit, fasteners

4FO 698 998 A

4

Socket head bolt M12x75

N 909 611 03

Rear axle .

Tools
Special tools
Used in conjunction with a bench vice to support the brake disc whilst replacing the fasteners
Continental family
Special tool description

Part number

Quantity per dealer (larger

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Page 7of16

Recall campaign R790 2030329/1

dealers may require
additional sets)
Hub and bearing assembly

3W0407613E

1

Bolt M14 x 85

3W0499337

1

Bolt M14 x 35

N10502902

2

Work
Checking ceramic brake disc for damage
Check the ceramic disc brakes by visual inspection (normal service procedure when brake discs are removed).
Note: Any consideration for warranty reimbursement in respect to brake discs or brake pads changed during this
procedures must be discussed with your TSC. In each instance a DISS BAID entry will be required to support your
request, photographs should be attached to support the decision
- Remove and inspect the ceramic brake discs.
=>Workshop Manual, Brake system; Rep . Gr. 46

Caution!
The Carbon ceramic discs are more susceptible to damage than conventional cast iron discs. They can be easily
chipped and cracked. Always use the wheel removaVrefit pins-WT10149- to prevent the wheel dropping onto the
edge of the disc during wheel removal

Due to the production Outside surface of brake disc:
process , relaxation
cracks already exist
on the friction surface
of the brake disc
when it is new. These
cracks can vary in
size and can occur
on both sides of the
disc.

lIJ
Relaxation cracks on
a ceramic brake disc
do not constitute a
technical problem.

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Page 8of1 6

Recall campaign R790 2030329/1

Example on outside :

Cracks in the cooling
channel lands -arroware caused during
manufacture .

l]J
Cracks in the cooling
channel lands do not
constitute a technical
problem.

15mm

l l!!ll lll il ll lll

Ifyou find any of the following conditions during the inspection, please observe the mandatory reporting requirement
before repairing.

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Recall campaign R790 203032911

Page 9of16

Ceramic brake discs Inside surface of brake disc:
must be replaced if
there are cracks in
the vicinity of the
bolted connection
on the inside of the
brake disc hub
extending into the
friction surface of
the disc - arrows-.
Ceramic brake discs
must be replaced if
there are radial
cracks in the area of
the bolted
connection on the
brake disc hub.

Edge fractures arrow- are caused
by mechanical

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Recall campaign R790 2030329/ 1

Page10of16

damage to the
edges of the disc.
Permissible
damage:
Max. width I
depth= 2 mm
Max. length =
10 mm
Max. 3 edge
fractures per
brake disc
If any of the criteria
listed above are
exceeded, the brake
disc must be
replaced.
Ceramic brake discs
with cracking
extending from the
friction surface of
the disc to the
cooling channel or
through the cooling
channel must be
replaced.

Ceramic brake discs
with chipping larger
than 1 cm 2 at any
one point -arrow- on
the friction surface
must be replaced.

Replacing fasteners on brake discs that pass the above inspection
- After

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Recall campaign R790 203032911

Page 11 of 16

removal and
inspection,
attach the
ceramic brake
disc to the
Continental
hub (special
tool).
It is
recommended
to produce
flats (C) on
the special
tool hub to
improve
stability in the
vice jaws.

Secure the special tool hub in a vice. Mount the disc onto the hub using bolts (A) and lock the hub
with bolt (B) to enable the controlled tightening of the new fasteners
Section A - Rear axle - This joint is the subject of the recall

1 - Bolt

2 -Washer
3 - Sleeve
4 - Retaining washer
with dished pressure
springs (held
together with cabl,e
tie)

lil
Do not open cable
tie until parts have
been fitted.

5- Nut
- Replace fasteners

1 ... 10.

ii
Replace the
fasteners one after
the other. Do not
loosen and replace
more than one

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Recall campaign R790 2030329/ 1

Page 12of16

fastener at a time.
The fasteners are
single use only. If
there is a
requirement for a
fastener (either
4F0.698.998.A or
4F0698.998.D) lobe
rectified, then a new
bolt must be used.
Rotate the disc with
the hub to position
each fastener for
ease of access.
Lock the hub with
bolt (B) to enable
tightening operation
- Fit sleeve from
outside.
Inside:
- Tighten bolt with
washer.
Tightening torque: 4
Nm
- Mark bolt.

- Turn bolt 90°
further (1/4 turn)

- Fit retaining
washer with dished
pressure springs

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Recall campaign R790 2030329/ 1

Page 13of16

and then (but not
before) cut open
cable tie.

Make sure that the
retaining washer is
fitted in the correct
position, as shown
in illustration.

- Counterhold bolt
(D) and tighten nut.
Tightening torque:
10 Nm

LU
Replace the
fasteners one after
the other. Do not
loosen and replace

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Recall campaign R790 2030329/ 1

Page 14of 16

more than one
fastener at a time.
The fasteners are
single use only. If
there is a
requirement for a
fastener (either
4F0.698.998.A or
4F0698.998.D) to be
rectified, then a new
bolt must be used.

Section B - Front axle - Th is jo int is not affected by stress corrosion cracking
To commonise the screws across the axles the front screws should also be replaced
1 - Bolt
2-Washer
3 - Sleeve
5-Nut

1

3

I

I

2 5

I I

Check ceramic brake discs for
damage as per criteria already
described

- Replace fasteners 1... 10.

Replace the fasteners one aner
the other. Do not loosen and
replace more than one fastener at
a time.
The fasteners are single use
only. If there is a requirement for
a fastener(either4F0.698.998.A
or 4F0698.998.D) to be rectified,
then a new bolt must be used.

- Fit sleeve and bolt from outside.

Inside:
- Install washer.
- Tighten nut.
Tightening torque: 4 Nm
- Mark nut.

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Recall campaign R790 2030329/1

Page 15of 16

- Counterhold bolt and turn nut
90 ° further (1/4 turn) .

Replace the fasteners one aner
the other. Do not loosen and
replace more than one fastener at
a time.
The fasteners are single use
only. If there is a requirement for
a fastener (either 4F0.698.998.A
or 4F0698. 998.D) to be rectified,
then a new bolt must be used.

Identification
Any applicable Bentley models in the Continental family found to have CSiC brake discs secured with "Original" bolts
must have this campaign applied

The rear disc retaining bolt can be viewed from inside the wheel. The front is checked through the wheel spokes

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Recall campaign R790 2030329/ 1

Pagel6ofl6

Figure 2
On completion apply a white campaign complete mark adjacent to the main battery (see Figure 2)
The presence of "New" bolts securing all four brake discs will also serve to indicate that this campaign has been
performed

A

Repair instructions

Notes

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