Renault Scenic 3 Chassis. Manual - part 50

38C

-

13

ANTI-LOCK BRAKING SYSTEM

Hydraulic unit

F9Q or K9K

38C

Remove:

- the lifting eye (4),

- the soundproofing screen mountings.

Remove the soundproofing.

Remove the air conditioning pipe (see Evaporator -
dehydration canister).

Remove the ABS computer earth terminal mounting
bolt.

Disconnect the computer connector.

Unscrew the six hydraulic unit pipes.

Unclip the six pipes from the hydraulic unit.

Remove:

- the hydraulic unit support mounting bolts (5),

- the « hydraulic unit - support » assembly,

- the hydraulic unit - support mounting bolts,

- the hydraulic unit.

REFITTING

Proceed in the reverse order to removal.

104324

AIR CONDITIONING or CLIMATE CONTROL

4

104341

WARNING

Position the hydraulic unit ear th terminal wire
facing downwards to optimise the computer con-
nector sealing.

5

5

38C

-

14

ANTI-LOCK BRAKING SYSTEM

Hydraulic unit

F9Q or K9K

38C

Refit the air conditioning pipe (see Evaporator - de-
hydration canister).

Torque tighten:

- the hydraulic unit support mounting bolts (0.65

daNm),

- the hydraulic unit - support mounting bolts (0.8

daNm),

- the  bolts securing the pipes on the hydraulic

unit (1.4 daNm).

Bleed the braking circuit using the Diagnostic tool

(Section General Vehicle Information, Braking circuit
bleed,  page 30A-5).

Fill up the refrigerant circuit using the filling station
tool.

106032

WARNING

Set up the earth terminal wires facing
downwards, to optimise the hydraulic unit compu-
ter connector sealing.

AIR CONDITIONING or CLIMATE CONTROL

WARNING

Connect the battery; carry out the necessary pro-
gramming (Section Electrical equipment).

AIR CONDITIONING or CLIMATE CONTROL

Note:

- Make sure the air conditioning is working pro-

perly with the fan assembly at top speed.

- If there is no cooling, look for leaks (see Leak

detection).

38C

-

15

ANTI-LOCK BRAKING SYSTEM

Hydraulic unit

F4R

38C

REMOVAL

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

Fit a pedal press tool to the brake pedal to limit the
outflow of brake fluid.

Drain the refrigerant circuit using the filling station
tool.

Remove the cowl grille (see  Wiping - WashingSec-
tion).

Remove:

- the engine covers,

- the two air filter access panel mounting bolts (1)

- the plenum chamber partition mounting bolts (2),

- the plenum chamber partition.

Remove the plenum chamber bracket (3).

Equipment required

pedal press

filling station

Diagnostic tool

Tightening torques

m

0.65 daNm

hydraulic unit - support
mounting bolts

0.8 daNm

bolts securing the pipes
on the hydraulic unit

1.4 daNm

air distributor mounting
bolts

0.9 daNm

AIR CONDITIONING or CLIMATE CONTROL

104343

104246

104666

2

1

2

2

3

38C

-

16

ANTI-LOCK BRAKING SYSTEM

Hydraulic unit

F4R

38C

Loosen the air duct clips (4).

Remove the air duct (5).

Disconnect:

- the brake servo vacuum pipe (6) at the air distribu-

tor end,

- the ignition coil connectors,

- the throttle valve connector (7).

Unclip the petrol vapour recirculation pipe at the so-
lenoid valve end (8).

Disconnect:

- the air pressure sensor (9),

- the air temperature sensor (10).

Remove the engine wiring harness (11).

101807

Note:

Do not damage the vacuum outlet on the air dis-
tributor. If it is damaged, the air distributor will
have to be replaced.

102735

5

4

7

6

102725

10

8

9

11