206-05-1 5 Parking Brake and Actuation 206-05-1 5
REMOVAL AND INSTALLATION
Parking Brake Cable - Vehicles With: Rear Disc Brakes(l2 675 0)
Removal
I. Release the parking brake.
2. Raise and support the vehicle. For additional
information, refer to:
(1 00-02 Jacking and
Lifting)
Jacking (Description and Operation),
Lifting (Description and Operation).
3. Remove the floor panel crossmember.
4m ACAUTION:T~~~ care when removing the
exhaust hanger insulators to prevent
damage.
N0TE:Support the rear muffler.
Detach the rear muffler from the exhaust
hanger insulators.
5. Detach the center section of the exhaust
system heat shield from the floor pan.
6. Detach the parking brake cable from the
brake caliper on both sides.
I. Pull back the parking brake actuating lever.
2. Disconnect the parking brake cable from the
parking brake actuating lever.
3. Detach the parking brake cable from the
brake caliper bracket.
ACAUTION:DO not apply excessive force
when releasing the parking brake cable clip
locking tangs from the parking brake cable
clip support bracket. Failure to follow this
instruction may result in damage to the clip.
N0TE:The parking brake cable clip is secured to
the parking brake cable support bracket by a
locking tang on either side of the clip.
Detach the parking brake cable from the
beam axle on both sides.
2006.0 Fiesta 1212006 G458900en
procarmanuals.com
206-05-1 6 Parking Brake and Actuation 206-05-1 6
REMOVAL AND INSTALLATION
Release the locking tangs.
8. Detach the parking brake cables from the
parking brake cable equalizer.
Detach the parking brake cables from the
parking brake cable support bracket.
9. Detach the parking brake cable from the
beam axle bracket on both sides.
10. Detach the parking brake cable from the
floor pan on both sides.
11. Remove the parking brake cable.
Installation
ACAUTION:T~~~ care when installing the
exhaust hanger insulators to prevent
damage.
N0TE:Check the exhaust hanger insulators for
damage. Install new exhaust hanger insulators if
required.
To install, reverse the removal procedure.
2. Adjust the parking brake.
For additional information, refer to: Parking
Brake Cable Adjustment
- Vehicles With:
Rear Disc Brakes
(206-05 Parking Brake
and Actuation, General Procedures).
2006.0 Fiesta 1212006 G458900en
procarmanuals.com
206-06-8 Hydraulic Brake Actuation 206-06-8
REMOVAL AND INSTALLATION
Brake Master Cylinder - RHD(12 343 0)
Removal 4. Tighten the bleed nipple. \,
All vehicles
CAUTI0N:lf brake fluid is spilt on the
paintwork, the affected area must be
immediately washed down with cold water.
I. Disconnect the brake vacuum pipe from the
brake booster.
I. Unclip the brake vacuum pipe.
2. Disconnect the brake vacuum pipe.
6. Install the brake fluid reservoir cap.
7m &AUTION:C~~ the brake tubes to prevent
fluid loss or dirt ingress.
Disconnect the brake tubes from the brake
master cylinder.
2. Disconnect the battery ground cable. For
additional information, refer to
Section
414-01 [Battery, Mounting and
Cables].
3. Remove the windshield wiper motor
assembly. For additional information, refer
to Section
501 -1 6 [Wipers and Washers].
4m &AUTION:T~~ brake fluid reservoir cap
must not become contaminated.
Vehicles with anti-lock brakes
Remove the brake fluid reservoir cap.
5. N0TE:lt will be necessary to carry out this 8m &AUTION:C~~ the brake tubes to prevent
fluid loss or dirt ingress.
step on both sides in order to completely
drain the brake fluid reservoir.
Drain the brake fluid reservoir.
1. Connect one end of a suitable piece of clear
plastic pipe to the bleed nipple and place the
other end into a suitable container.
2. Loosen the bleed nipple.
3. Depress the brake pedal until all the fluid is
drained from the brake fluid reservoir.
2006.0 Fiesta 1212006 ~89191 en
procarmanuals.com
206-0713 Power Brake Actuation 206-0713
DESCRIPTION AND OPERATION
Brake Booster
Emergency brake assistant (EBA) EBA operates purely mechanically, and is
completely integral with the brakeservo.
As ABS braking systems have become widespread,
it has emerged that because of incorrect use of the
Brake servo units with and without EBA are
brakes, many drivers are losing the safety benefit externally identical. For identification purposes,
which ABS
~rovides. brake servo units with EBA carry a white sticker I showing a large letter "A. Drivers are applying the brakes too timidly.
Because of this, the Anti-lock Braking System The tandem master cylinder
is the same for
(ABS) does not engage, and the maximum braking
vehicles with or without
effect is not achieved.
The EBA recognises from the driver's manner of
braking that an emergency situation is occurring,
and automatically applies full braking power.
This occurs in a matter of milliseconds, which is
faster than the driver could do it.
Furthermore, it was observed that after the first
heavy application of the brake pedal, the driver
releases the pressure on the pedal too early.
The EBA ensures that the ABS effect still continues
when the pedal pressure would normally lie below
the ABS range of control. The system is available
j as an option depending on market and vehicle
variant.
Function
In normal braking situations, the brake servo with
EBA operates in the same way as a conventional
brake servo unit. This means that the driver can
always modulate the brakes.
If an activation threshold defined by a characteristic
curve is exceeded during braking, the EBA
operates.
Determination of the activation threshold is based
on the pedal movement parameters, which are a
function of the pressure on the brake pedal and
the speed of movement of the pedal.
Depending on driving manner, EBA results in a The characteristic curve
is separately defined for
reduction in braking distance of 15% for each vehicle model.
experienced drivers, to over
40% for average The mechanical EBA uses the fact that in a brake
drivers. servo unit, the valve piston moves ahead of the
Because EBA decelerates the vehicle up to the control housing
when a braking operation starts.
wheel locking limit, emergency brake assist is only Because of this, there is a relative travel distance used in vehicles with ABS.
between the control housing and the valve piston
which can vary depending on the force applied to
Components the brake pedal and the pedal speed.
The relative travel distance is small when the pedal
moves slowly with low force applied to it. The
relative travel distance is larger when the pedal
moves faster with higher force applied to it.
Item Description
-
2006.0 Fiesta 1212006 GI 63289en
procarmanuals.com
206-07-5 Power Brake Actuation 206-07-5
DESCRIPTION AND OPERATION
Item Description
1 3 I Valve piston I
i '
1 4 1 Ball I
1 5 1 ~ock sleeve I
I
2
1 6 1 Ball cage I
Ball sleeve
Control housing
Active brake assistant
In a normal braking operation, pedal operation
causes the relative travel distance to remain so
small that the distance required for engagement is
not exceeded.
The lock sleeve is held in its rest position by the
force applied by the spring, the ball cage remains
free to move axially and the balls remain free to
move radially.
Item Description
I 1 I Relative travel distance I
1 2 1 Disc valve I -
1 3 1 Key I
If the activation threshold level is.exceeded
because of an emergency braking situation, i.e.
the relative travel distance of the valve piston is so
great that the balls are moved in over the slope of
the ball sleeve, then the lock sleeve can move
completely to its end position.
I
--
The balls are now locked, and the ball sleeve can
no longer be moved in the closing direction of the
disc valve.
The EBA is now active, the brake pressure is
increased up to the wheel locking limit, and the
brake pedal can be moved to its maximum
pressure point without effort.
The brake pressure remains at the ABS control
limit until the EBA is completely released again.
2006.0 Fiesta 1212006 GI 63289en
procarmanuals.com
206-0716 Power Brake Actuation 206-0716
DESCRIPTION AND OPERATION
Release of the brake assistant
Item Description
I I I ~ock sleeve I
1 3 IVacuum cylinder I
To release EBA, the brake pedal must be fully
released,
i.e. it must be returned to its rest position.
When this occurs, the control housing together with
the valve piston move back into the rest position.
The key is pressed against the stop on the vacuum
cylinder and by this the lock sleeve is slid back into
its rest position.
The balls can again be moved outward by the ball
sleeve, and the ball cage is again free to move
axially and the balls free to move radially.
Service
It is not possible to repair the EBA. A new brake
servo unit must be installed.
2006.0 Fiesta 12/2006 GI 63289en
procarmanuals.com
206-07-8 Power Brake Actuation 206-07-8
REMOVAL AND INSTALLATION
Brake Booster - RHD(12 451 0)
Removal 2. Remove the brake booster actuating rod pin. (
1. Remove the brake master cylinder.
For additional information, refer to: Brake
Master Cylinder
- RHD (206-06 Hydraulic
Brake Actuation, Removal and Installation).
2. Disconnect the brake vacuum pipe from the
brake booster.
I. Unclip the brake vacuum pipe.
2. Disconnect the brake vacuum pipe.
3. Remove the instrument panel lower panel.
1. Remove the lower retaining screws.
2. Remove the upper retaining screws from the
stowage compartment.
3. Release the retaining clip. 5.
Remove
the brake booster.
Discard the gasket.
Installation
1. WARNINGS:
ADO not install an Emergency Brake Assist
(EBA) brake booster to a vehicle that is not
equipped with the Anti-lock Brake System
(ABS). Failure to follow this instruction may
result in personal injury.
ADO not use a damaged brake pedal.
Failure to follow this instruction may result
in personal injury.
4. Detach the brake booster actuating rod from CAUTIONS:
the brake pedal (accelerator pedal shown A Make sure that the brake booster gasket
removed for clarity).
is correctly positioned on the brake
I. Depress the clip. booster before installation. 41
A Do not drop or knock the brake pedal.
Failure to follow this instruction will cause
damage to the brake pedal decoupler
mechanism (if equipped).
2006.0 Fiesta 12/2006 G89214en
procarmanuals.com
206-09A-1 Anti-Lock Control 206-09A-I
SECTION 206-09A Anti-Lock Control
CONTENTS
PAGE
SPECIFICATIONS
........................................................................\
.............................................. Specifications 206-09A-2
DESCRIPTION AND OPERATION
........................................................................\
......................................... Anti-Lock Control 206-09A-3
........................................................................\
..................................................... Overview 206-09A-3
Function
........................................................................\
...................................................... 206-09A-3
Anti-Lock Control
........................................................................\
........................................ 206-09A-5
MK70 Anti-lock Brake System (ABS) ........................................................................\
......... 206-09A-5
........................................................................\
.................................................. MK60 ABS 206-09A-5
DIAGNOSIS AND TESTING
........................................................................\
........................................ Anti-Lock Control 206-09A-7
........................................................................\
.......................... Inspection and Verification 206-09A-7
REMOVAL AND INSTALLATION
......................................... Hydraulic Control Unit (HCU) -- Vehicles Built Up To: 0512004 206-09A-8
.......................................... Hydraulic Control Unit (HCU) -- Vehicles Built From: 0512004 206-09A-11
Anti-Lock Brake System (ABS) Module -- Vehicles Built Up To: 0512004 ......................... 206-09A-14
.......................... Anti-Lock Brake System (ABS) Module -- Vehicles Built From: 0512004 206-09A-17
........................................................................\
..... Rear Wheel Speed Sensor
(12 785 0) 206-09A-20
Rear Wheel Speed Sensor Ring
................................................................... (12 788 0) 206-09A-22
Front Wheel Speed Sensor
........................................................................\
.... (12 784 0) 206-09A-24
procarmanuals.com