2011 FORD KUGA ALL

Lubricants, Fluids, Sealers and Adhesives
Specification
ESD-M6C57-A /
WSSM6C57- A2
Super DOT 4 brake fluid
Front Brake Disc Specification
mm 300
Brake disc diameter
25
New brake disc nominal thickness
23
Worn brake disc discard thickness *
0.025
Maximum brake disc thickness variation
1.5
Worn brake pad discard thickness**
0.015
Maximum brake disc runout (installed)
* When the discard thickness has been reached, install a new brake disc and brake pads.
** When the discard thickness has been reached, install new brake pads.
Rear Disc Brake Specification
mm
Description
302
Brake disc diameter
11
New brake disc nominal thickness
9
Worn brake disc discard thickness *
0.025
Maximum brake disc thickness variation
1.5
Worn brake pad discard thickness **
0.1
Maximum brake disc runout (installed)
* When the discard thickness has been reached, install a new brake disc and brake pads.
** When the discard thickness has been reached, install new brake pads.
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Brake System
General EquipmentPressure/vacuum gauge set
The Ford approved diagnostic tool
The brake system operates by transferring effort
applied to the brake pedal by the driver to the
brakes at each wheel.
The braking effort is distributed to each wheel,
using a hydraulic system. The system is assisted
using a vacuum brake booster that reduces pedal
effort and increases hydraulic pressure.
The parking brake operates on the rear wheels
and is applied using a hand operated control.
Inspection and Verification
NOTE: Before carrying out any diagnosis, make
sure that the brake system warning indicator is
functional.
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart
Electrical
Mechanical
• Electricalconnector(s)
• Wiring harness(s)
• Switch(es)
• Tire pressure(s)
• Wheels and tires
• Fluid leak(s)
3. If an obvious cause for an observed or reported concern is found, correct the case (if possible)
before proceeding to the next step.
4. If the cause if not visually evident, verify the symptom and refer to the Symptom Chart.
Road Test
Carry out a road test to compare actual vehicle
braking performance with the performance
standards expected by the driver. The ability of the
test driver to make valid comparisons and detect
performance deficiencies will depend on
experience.
The driver should have a thorough knowledge of
the brake system operation and accepted general performance guidelines to make good comparisons
and detect performance concerns.
An experienced technician will always establish a
route that will be used for all brake diagnosis road
tests. The road selected will be reasonably smooth
and level. Gravel or bumpy roads are not suitable
because the surface does not allow the tires to grip
the road equally. Crowned roads should be avoided
because of the large amount of weight shifted to
the low set of wheels on this type of road. Once
the route is established and consistently used, the
road surface variable can be eliminated from the
test results.
Before a road test, get a complete description of
the customer concerns or suspected condition.
From the description, the technician will be able to
match possible causes with symptoms. Certain
components will be identified as possible sources
while others will be eliminated by the evidence.
More importantly, the customer description can
reveal unsafe conditions which should be checked
or corrected before a road test. The description will
also help form the basic approach to the road test
by narrowing the concern to specific components,
vehicle speed or conditions.
Begin the road test with a general brake
performance check. Using the description of the
concern, test the brakes at different vehicle speeds
using both light and heavy pedal pressure.
Determine if the concern is in the front or rear
braking system. First use the foot brake and then
the parking brake. If the condition (i.e. pull,
vibration, pulsation) occurs only on operation of
the parking brake, the concern is in the rear brake
system. If the condition occurs when the foot brake
is depressed, the concern is in the front brake
system.
Avoid locking the brakes and sliding the tires. This
condition will not indicate brake efficiency. A heavily
braked but turning wheel will stop the vehicle in a
shorter distance than locked wheels.
If the concern becomes evident during this check,
make sure it fits the description given before the
road test. If the concern is not evident, attempt to
duplicate the condition using the information from
the description.
If a concern exists, use the Brake System Symptom
Chart in order to isolate it to a specific sub-system
and condition description. From this description, a
list of possible sources can be used to further
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narrow the cause to a specific component or condition.
Symptom Chart
Action
Possible Sources
Symptom
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Worn or damaged brake shoes
or brake pads and linings.
• Brakes pull or drift
• INSTALL a new front brakedisc.
REFER to: Brake Caliper (206-
03 Front Disc Brake,
Removal and Installation).
• Abnormal wear or distortion of
front brake disc.
• ADJUST the parking brakecable.
REFER to: Parking Brake
Cable Adjustment (206-05
Parking Brake and Actuation,
General Procedures).
• Incorrect rear brake adjust-
ment.
• ADJUST the wheel alignment.REFER to: (204-00 Suspension
System - General Information)
Front Toe Adjustment (General
Procedures),
Rear Toe Adjustment (General
Procedures).
• Incorrect wheel alignment
adjustment.
• ADJUST or INSTALL a newwheel bearing.
REFER to: Front Wheel
Bearing (204-01 Front
Suspension, Removal and
Installation).
• Incorrect wheel bearing preload
adjustment.
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Grease or fluid on the brake
shoes or brake pads; glazed
linings.
• INSTALL a new wheel cylinderor brake caliper.
REFER to: Brake Caliper (206-
04 Rear Disc Brake, Removal
and Installation).
• Stuck or seized wheel cylinders
or brake calipers.
• FILL the reservoir. CHECK thebrake and clutch system for
leaks including brake fluid in
the brake booster.
• Low brake fluid level.
• The red brake warning indicator
is always on
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Action
Possible Sources
Symptom
• INSTALL a new brake mastercylinder.
REFER to: Brake Master
Cylinder - 2.5L Duratec
(147kW/200PS) - VI5 (206-06
Hydraulic Brake Actuation,
Removal and Installation).
• Leaking brake master cylinder
primary piston cup.
• FREE UP and ADJUST theparking brake cable.
REFER to: Parking Brake
Cable Adjustment (206-05
Parking Brake and Actuation,
General Procedures).
INSTALL new components as
necessary.
• Parking brake control not fully
released.
• REFER to:Anti-Lock Control
(206-09 Anti-Lock Control,
Diagnosis and Testing).
• Malfunctioning anti-lock braking
system (ABS).
• REFER to:Instrument Cluster
(413-01 Instrument Cluster,
Diagnosis and Testing).
• Shorted indicator circuit.
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Grease or fluid on the brake
shoes or brake pads; glazed
linings.
• Vibration when the brakes are
applied
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Worn or damaged brake shoes
or brake pads.
• TIGHTEN the caliper mountingbolt(s).
• Loose caliper mounting bolt(s).
•
• Excessive brake disc thickness
variation or brake disc runout.
• CHECK the tires. BALANCE orINSTALL new tires as neces-
sary.
REFER to: Wheels and Tires
(204-04 Wheels and Tires,
Diagnosis and Testing).
• Wheels and tires.
• TIGHTEN or INSTALL newwheel hub bolts as necessary.
• Loose or missing wheel hub
bolts.
• CARRY OUT a brake discrunout check.
• Worn or damaged brake drums
or brake discs.
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Action
Possible Sources
Symptom
• FILL the reservoir. CHECK thebrake and clutch system for
leaks including brake fluid in
the brake booster.
• Low brake fluid level.
• Pedal goes down fast
• REPAIR the leak. CHECK theentire hydraulic system. FILL
and BLEED the brake system.
REFER to: (206-00 Brake
System - General Information)
Brake System Bleeding (General Procedures),
Brake System Pressure Bleeding (General Proced-
ures),
Component Bleeding (General
Procedures).
• Leak in the hydraulic system.
• CHECK for leaks. BLEED thebrake system. REFER to: (206-
00 Brake System - General
Information)
Brake System Bleeding (General Procedures),
Brake System Pressure Bleeding (General Proced-
ures),
Component Bleeding (General
Procedures).
• Air in the system.
• CARRY OUT a brake discrunout check.
• Brake disc “brake knock back”
(Brake pads push the brake
caliper piston back into the
brake caliper. Caused by
excessive brake disc lateral
runout or loose wheel bear-
ings.)
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Worn brake shoes or brake
pads.
• GO toPinpoint Test A.
• Worn brake master cylinder
piston cups or scored cylinder
bore.
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Action
Possible Sources
Symptom
• BLEED the brake system.REFER to: Brake System
Pressure Bleeding (206-00
Brake System - General
Information, General Proced-
ures).
REFER to: (206-00 Brake
System - General Information)
Brake System Bleeding (General Procedures),
Component Bleeding (General
Procedures).
• Air in the system.
• Pedal eases down slowly
• GO toPinpoint Test B.
• Malfunctioning brake master
cylinder.
• Low engine vacuum (stationary).
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Worn brake shoes or brake
pads.
• Pedal is low or feels spongy
• CHECK for leaks. BLEED thebrake system. REFER to: (206-
00 Brake System - General
Information)
Brake System Bleeding (General Procedures),
Brake System Pressure Bleeding (General Proced-
ures),
Component Bleeding (General
Procedures).
• Air in the system.
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Glazed or worn brake shoes or
brake pads.
• Brake lockup during light brake
pedal force
• GO toPinpoint Test C.
• Brake booster.
• Low engine vacuum.
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Worn brake shoes or brake
pads.
• Excessive or erratic pedal
travel
• CARRY OUT a brake discrunout check.
• Wheel bearings
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Action
Possible Sources
Symptom
• ADJUST the parking brakecable or switch
REFER to: Parking Brake
Cable Adjustment (206-05
Parking Brake and Actuation,
General Procedures).
• Incorrectly adjusted parking
brake or brake pedal switch
• Brake drag
• REFER to brake booster opera-tion check in this procedure.
• Brake booster.
• INSTALL a new wheel cylinderor brake caliper.
REFER to: Brake Caliper (206-
03 Front Disc Brake,
Removal and Installation).
• Seized wheel cylinder or brake
caliper.
• INSTALL a new brake caliper.REFER to: Brake Caliper (206-
03 Front Disc Brake,
Removal and Installation).
• Seized brake caliper slide pins.
• INSTALL new parking brakecables.
REFER to: Parking Brake
Cable Adjustment (206-05
Parking Brake and Actuation,
General Procedures).
• Seized parking brake cables.
• Check the parking brake leaverposition and make sure there
are no obstructions.
• Parking brake not fully
released.
• Check all brake hose(s) forcorrect fitment.
REFER to: Rear Brake Flexible
Hose (206-04 Rear Disc
Brake, Removal and Installa-
tion)
/ Front Brake Flexible Hose
(206-03 Front Disc Brake,
Removal and Installation).
• Brake hose incorrectly fitted.
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Worn or contaminated brake
shoes or brake pads.
• Excessive brake pedal effort
• INSTALL a new brake vacuumpump.
• Malfunctioning vacuum pump
(diesel).
• CONNECT or INSTALL a newbrake booster vacuum pipe as
necessary.
• Disconnected or damaged
brake booster vacuum pipe.
• GO toPinpoint Test D.
• Brake booster.
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Action
Possible Sources
Symptom
• INSTALL new brake shoes orbrake pads.
REFER to: Brake Pads (206-03
Front Disc Brake, Removal
and Installation).
• Worn or damaged brake shoes
or brake pads.
• Brake noise
• GO toPinpoint Test E.
• Brake booster.
• GO toPinpoint Test F.
• Brake booster.
• Seized brake pedal pivot.
• Slow or incomplete brake pedal
return
Pinpoint Tests
PINPOINT TEST A : PEDAL GOES DOWN FAST
DETAILS/RESULTS/ACTIONS
TEST CONDITIONS
A1: PRESSURIZE THE SYSTEM
1 Pump the foot brake rapidly five times.
• Does the brake pedal height build up and then hold?
zYe s
CHECK parking brake adjustment and
ADJUST as necessary.
REFER to: Parking Brake Cable Adjustment
(206-05 Parking Brake and Actuation,
General Procedures).
If the condition still exists. BLEED the brake
system. REFER to: (206-00 Brake System -
General Information)
Brake System Bleeding (General Procedures),
Brake System Pressure Bleeding (General
Procedures),
Component Bleeding (General Procedures).
TEST the system for normal operation.
zNo
GO to A2.
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