Renault Scenic 3 Chassis. Manual - part 8

31A

-

8

FRONT AXLE ASSEMBLIES

Hub carrier

31A

REMOVAL

Mount the vehicle on a two post lift.

Disconnect the battery, starting with the negative ter-
minal.

Remove the front wheel.

Unclip:

- the wheel speed sensor from the hub carrier,

- the discharge bulb sensor (if fitted on vehicle).

Remove the front brake calliper support bolts (1).

Special tooling required

Rou. 604-01

Hub locking tool

Tav. 476

Ball joint extractor

Equipment required

Diagnostic tool

Tightening torques

m

shock absorber lower
mounting bolt 

10.5 daNm

lower ball joint nut

6.2 daNm

track rod end nut 

3.7 daNm

brake disc mounting
bolts 

1.5 daNm

hub nut 

28 daNm

brake calliper support
mounting bolts 

10.5 daNm

wheel bolts

13 daNm

101215

1

2

3

4

31A

-

9

FRONT AXLE ASSEMBLIES

Hub carrier

31A

Hang the « calliper - front brake calliper support »
assembly on the suspension spring.

Remove:

- the hub nut (6) using tool (Rou. 604-01),

- the two disc mounting bolts (5),

- the disc,

- the track rod end nut (2),

- the lower ball joint nut (3),

- the anti-roll bar tie rod upper mounting nut (7),

- the anti-roll bar tie rod,

- the shock absorber lower mounting bolt (4).

Extract the ball joints using tool (Tav. 476).

Remove the front driveshaft stub axle carrier by tur-
ning it towards the vehicle interior.

REFITTING

Proceed in the reverse order to removal.

Torque tighten:

- the  shock absorber lower mounting bolt  (10.5

daNm),

- the lower ball joint nut (6.2 daNm),

- the track rod end nut  (3.7 daNm),

- the brake disc mounting bolts  (1.5 daNm),

- the hub nut  (28 daNm),

- the brake calliper support mounting bolts  (10.5

daNm),

- the wheel bolts (13 daNm).

101212

IMPORTANT

Take  care to avoid injury from the base of the
shock absorber when it comes out of the stub
axle carrier.

6

5

7

Note:

The calliper support bolts must be coated with a
product such as FRENBLOC before being refit-
ted.

IMPORTANT

Depress the brake pedal several times to bring
the pistons, the brake pads and brake discs into
contact.

WARNING

Connect the battery, starting with the positive ter-
minal; carry out the necessary programming
(Section Electrical equipment).

WARNING

Adjust the axle assemblies (  General Vehicle
InformationSection).

Program the torque and angle sensor using the
Diagnostic tool (see fault finding manual).

Note:

Be sure to initialise the discharge bulb system (if
fitted on vehicle;Section Electrical equipment).

31A

-

10

FRONT AXLE ASSEMBLIES

Hub-carrier bearing

31A

The following tools are required for this procedure:

- tool (Rou. 15-01),

- tool (Rou. 604-01),

- tool (Tav. 476),

- tool (Tav. 1050-02).

REMOVAL

Remove the stub axle carrier (Section Front axle as-
semblies, Hub carrier,  page 31A-8).

Remove:

- the hub using a press, gripping with a 41 mm dia-

meter tube,

- the circlip.

Remove the bearing, gripping the internal bush with
a tube of diameter 46 mm.

Special tooling required

Rou. 15-01

16 mm interior diame-
ter shaft protector

Rou. 604-01

Hub locking tool

Tav. 476

Ball joint extractor

Tav. 1050-02

Tool for pushing calli-
per pistons back

Tightening torques

m

lower ball joint bolt

6.2 daNm

track rod end nut

3.7 daNm

driveshaft nut

28 daNm

shock absorber base
bolt

10.5 daNm

disc mounting bolt

1.5 daNm

calliper suppor t bolt

10.5 daNm

wheel bolt

13 daNm

20786

20787

31A

-

11

FRONT AXLE ASSEMBLIES

Hub-carrier bearing

31A

REFITTING

Refit the sensor holder.

Position the sensor holder at (x) = 35˚ 

±

±

±

±

 5˚ from ver-

tical. This position corresponds to the centre of the
housing.

Grip the external bush with a tube of external diame-
ter 77 mm and bore diameter 70 mm.

WARNING

Do not move the vehicle without its driveshafts
torque tightened on the hub, as to do so could
destroy the wheel bearings and damage the ABS
target.

WARNING

Take  care not to mark the wheel speed sensor
target on the active sensor bearing when refitting.

WARNING

- Be sure to check the condition of the hub sur-

face and the hub carrier bore before refitting the
bearing. Replace the hub carrier if it is defective.

Clean:

- the inner and outer surfaces of the new bearing

in contact with the stub axle carrier and the hub,

- the stub axle carrier surfaces in contact with the

new bearing,

- the hub surfaces in contact with the new bea-

ring.

WARNING

Do not grip the inner bearing bush, to avoid
damaging the bearing (significant force is requi-
red for fitting).

101934

20788

x