front FORD KUGA 2011 1.G Owners Manual

Rear Suspension – Overview
Overview
E98609
1
23
4
5
7
6
8
9
10
Description
Item
Subframe
1
Rear lower arm and spring lower pad
2
Spring
3
Stabilizer bar link
4
Front lower arm
5Description
Item
Wheel knuckle
6
Tie-bar
7
Shock absorber
8
Upper control arm
9
Stabilizer bar, bushings and clamps
10
G1000191en2008.50 Kuga8/2011
204-02- 3
Rear Suspension
204-02- 3
DESCRIPTION AND OPERATION
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Upper control arm
E98616
The following components may be renewed:
• Lower arms
During removal and installation or renewal of the
lower arm, pay attention to the following:
• After completing the work, the suspensiongeometry of the vehicle must be checked and
corrected as necessary.
Rear lower arm and spring lower pad
E98615
The following components may be renewed:
• Lower arms
During removal and installation or renewal of the
lower arm, pay attention to the following:
• After completing the work, the suspensiongeometry of the vehicle must be checked and
corrected as necessary.
Front lower arm
E98614
The following components may be renewed:
• Lower arms
During removal and installation or renewal of the
lower arm, pay attention to the following:
• After completing the work, the suspensiongeometry of the vehicle must be checked and
corrected as necessary.
G1000191en2008.50 Kuga8/2011
204-02- 4
Rear Suspension
204-02- 4
DESCRIPTION AND OPERATION
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Front Lower Arm(15 690 0)
General EquipmentTransmission Jack
Removal
NOTE: Removal steps in this procedure may
contain installation details. 1.
Refer to: Spring(204-02 Rear Suspension,
Removal and Installation).
2. Fabricate a spacer.
E69209
226
40
3.General Equipment: Transmission Jack
1
2
E93313
G1000225en2008.50 Kuga8/2011
204-02- 11
Rear Suspension
204-02- 11
REMOVAL AND INSTALLATION
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Tyre pressures (cold tyres) - Up to 80 km/h (50
mph)
Full load
Normal load
Tyre
size
Variant
Rear
Front
Rear
Front
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
4.2
(61)
4.2
(61)
4.2
(61)
4.2 (61)
T135/
90 R 17
All
Tyre pressures (cold tyres) - Up to 160 km/h
(100 mph)
Full load
Normal load
Tyre
size
Variant
Rear
Front
Rear
Front
bar
(psi)
bar
(psi)
bar
(psi)
bar (psi)
2.8
(41)
2.4
(35)
2.3
(33)
2.2 (32)
215/
65
R16
All
2.8
(41)
2.4
(35)
2.3
(33)
2.2 (32)
215/
70
R16
All
2.8
(41)
2.4
(35)
2.3
(33)
2.2 (32)
235/
60
R16
All
2.8
(41)
2.4
(35)
2.3
(33)
2.2 (32)
235/
55
R17
All
2.8
(41)
2.4
(35)
2.3
(33)
2.2 (32)
235/
55
RF17
All
2.8
(41)
2.4
(35)
2.2
(32)
2.1 (31)
235/
50
R18
All
2.8
(41)
2.4
(35)
2.2
(32)
2.1 (31)
235/
45
R19
All Tyre pressures (cold tyres) - Continuous speed
in excess of 160 km/h (100 mph)
Full load
Normal load
Tyre
size
Variant
Rear
Front
Rear
Front
bar
(psi)
bar
(psi)
bar
(psi)
bar (psi)
2.8
(41)
2.4
(35)
2.3
(33)
2.3 (33)
215/
65
R16
All
2.8
(41)
2.4
(35)
2.3
(33)
2.3 (33)
215/
70
R16
All
2.8
(41)
2.4
(35)
2.3
(33)
2.3 (33)
235/
60
R16
All
2.8
(41)
2.4
(35)
2.3
(33)
2.3 (33)
235/
55
R17
All
2.8
(41)
2.4
(35)
2.3
(33)
2.3 (33)
235/
55
RF17
All
2.8
(41)
2.4
(35)
2.3
(33)
2.3 (33)
235/
50
R18
All
2.8
(41)
2.4
(35)
2.3
(33)
2.3 (33)
235/
45
R19
All
G1000248en2008.50 Kuga8/2011
204-04-
2
Wheels and Tires
204-04- 2
SPECIFICATIONS
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Action
Possible Sources
Symptom
• ROTATE the wheel and tireassemblies.
• Wheel and tire assemblies
need rotating.
• ADJUST the wheel alignment.REFER to: Suspension System
(204-00 Suspension System
- General Information,
Diagnosis and Testing).
• Incorrect wheel alignment.
• CORRECT as necessary.
• Vehicle overloaded.
• TIGHTEN or INSTALL newsuspension components as
necessary.
REFER to: Front Strut and
Spring Assembly (204-01
Front Suspension, Disas-
sembly and Assembly).
• Loose or leaking front strut and
spring assembly.
• INSTALL new wheel bearingsas necessary.
REFER to: Front Wheel
Bearing (204-01 Front
Suspension, Removal and
Installation).
• Wheel bearings worn.
• CHECK or INSTALL newsuspension components as
necessary.
• Suspension components,
bushings and ball joints.
• BALANCE the wheel and tireassemblies. Using a suitable
dial indicator gauge and holding
fixture, CHECK lateral and
radial runout of the wheel and
tire assemblies. INSTALL new
wheel and tire assemblies as
necessary.
REFER to: Wheel and Tire
(204-04 Wheels and Tires,
Removal and Installation).
• Excessive lateral or radial
runout of wheel or tire.
• INSPECT the wheel rims fordamage. BALANCE the wheel
and tire assemblies. Using a
suitable dial indicator gauge
and holding fixture, CHECK
lateral and radial runout of the
wheel and tire assemblies.
INSTALL new wheel and tire
assemblies as necessary.
REFER to: Wheel and Tire
(204-04 Wheels and Tires,
Removal and Installation).
• Damaged wheel.
• Wobble or shimmy affecting
wheel runout
G1061329en2008.50 Kuga8/2011
204-04- 8
Wheels and Tires
204-04- 8
DIAGNOSIS AND TESTING
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Action
Possible Sources
Symptom
• CHECK or INSTALL new wheelbearings as necessary.
REFER to: Front Wheel
Bearing (204-01 Front
Suspension, Removal and
Installation).
• Front wheel bearing.
• CHECK or INSTALL newsuspension components as
necessary.
• Suspension components.
• Excessive vehicle vibration,
rough steering
• ADJUST the tire pressure(s).
• Incorrect tire pressure(s).
• Vehicle vibrations from wheels
and tires
• BALANCE the wheel and tireassemblies.
• Wheel or tire imbalance.
• INSTALL a new tire(s) asnecessary.
REFER to: Wheel and Tire
(204-04 Wheels and Tires,
Removal and Installation).
• Uneven tire wear.
• CHECK the brake disc forforeign material.
• Brake disc imbalance.
• REMOVE the water.
• Water in tire(s).
• INSTALL a new wheel and tireassembly.
REFER to: Wheel and Tire
(204-04 Wheels and Tires,
Removal and Installation).
• Bent wheel.
• SPIN the wheel on the vehicle.EXAMINE the area where the
tire and the wheel meet. If that
section of the tire appears to
waver while being rotated, the
tire bead may not be correctly
seated on the wheel. REMOVE
the tire and CLEAN the bead
seat areas on both wheel and
tire.
• Incorrectly seated tire bead.
• BALANCE the wheel and tireassemblies. Using a suitable
dial indicator gauge and holding
fixture, CHECK the lateral and
radial runout of the wheel and
tire assemblies. INSTALL new
wheel and tire assemblies as
necessary.
REFER to: Wheel and Tire
(204-04 Wheels and Tires,
Removal and Installation).
• Excessive lateral or radial
runout of wheel or tire.
G1061329en2008.50 Kuga8/2011
204-04- 9
Wheels and Tires
204-04- 9
DIAGNOSIS AND TESTING
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Action
Possible Sources
Symptom
• CLEAN mounting surfaces.
• Foreign material between
wheel mounting face and hub
mounting surface.
• CHECK or INSTALL new wheelbearings as necessary.
REFER to: Front Wheel
Bearing (204-01 Front
Suspension, Removal and
Installation).
• Front wheel bearing.
• CAUTION: Do not permitlubricant to get on cone sets of
stud holes or on cone angle of
wheel nuts. If corrosion is
slight, wire brush away. If
corrosion is excessive,
INSTALL new wheel studs and
nuts.
REFER to: Wheel and Tire
(204-04 Wheels and Tires,
Removal and Installation).
If the condition persists,
LUBRICATE the first three
threads of each wheel stud with
a graphite-based lubricant.
• Corrosion.
• Seized wheel nuts
• CORRECT as necessary.
• Vehicle overloaded
G1061329en2008.50 Kuga8/2011
204-04- 10
Wheels and Tires
204-04- 10
DIAGNOSIS AND TESTING
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Rear Drive Axle and Differential – Component Location
Powertrain
6
6
1
2
3
3
4
5
6
6
E102416
Description
Item
Transmission assembly
1
Transfer box,
2
Halfshaft - front axle
3Description
Item
Drive shaft
4
Rear axle
5
Halfshaft - rear axle
6
G1076980en2008.50 Kuga8/2011
205-02- 2
Rear Drive Axle/Differential
205-02- 2
DESCRIPTION AND OPERATION
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Rear Drive Axle and Differential – System Operation andComponent Description
System Operation
General Information
The powertrain with all-wheel drive consists of the
following main components:
• engine
• transaxle with front axle differential
• transfer box
• halfshafts and driveshafts
• Haldex clutch
• rear axle differential
The Haldex clutch guarantees continuous variable
torque transmission to the rear axle under all
driving conditions. The Haldex clutch reacts
immediately and equally quickly with slow or fast
wheel slip.
A difference in angle of rotation of 90° between the
input and output shafts is required to build up
maximum pressure at the multi-plate clutch or to
transmit maximum torque.
The advantage of vehicles with all-wheel drive is
that they distribute the drive between all four
wheels. They therefore have a higher tractive
power. They feature improved cornering behaviour,
as the grip at all four wheels can be better utilised.
Thus, the wheels contribute to a greater degree
towards cornering stability.
The engine torque is transmitted from the transfer
box to the rear axle via a driveshaft. The driveshaft
is flange-mounted to the input side of the Haldex
clutch.
Driving situations
Pulling away and accelerating
• When pulling away and accelerating, as muchall-wheel drive as necessary must be available
immediately in the short-term. During
acceleration, the electronic system detects slip
at the front axle. This slip is counter-controlled
and thus the propulsive force optimally
distributed to the two axes.
Cornering • A sporty driving style, in particular dynamic
cornering, demands stable cornering behaviour.
The all-wheel system distributes the propulsive
force to all four wheels and by so doing boosts
the high cornering forces so that the vehicle
makes optimum contact with the road surface.
Snow and black ice
• Snow and black ice require particularly high grip. Under these conditions, the Haldex clutch
always distributes the propulsive force to the
axle with the better traction. The all-wheel
system reacts intelligently and quickly to all
driving situations.
Trailer operation
• When driving with a trailer, the trailer weight (support load) is transmitted to the rear axle via
the towbar. This reduces the load on the front
wheels, which means they can slip. The
electronic system detects this difference and
distributes most of the propulsive force to the
rear axle.
Haldex clutch
E100642
G1076981en2008.50 Kuga8/2011
205-02- 6
Rear Drive Axle/Differential
205-02- 6
DESCRIPTION AND OPERATION
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The Haldex clutch is based on the principle of a
simple wet clutch that distributes the torque variably
between the front and rear axles.
Three components are linked within the Haldex
clutch:• A mechanical component, comprising input and
output shafts, the plate assembly (clutch) as
well as the cam plate and the roller bearing.
• A hydraulic component, essentially comprising pressure valves, a pressure accumulator, the
control valve, the ring pistons and a fluid filter.
• The electronic control comprises the electric fluid pump and the all-wheel drive control unit
with integrated pressure/temperature sensor
and an actuator motor for the control valve.
Design of the multi-plate clutch
7
4
3
2
8
1
6
10911
13
A
B12
5
E100662
Description
Item
Pump plunger assembly
A
Working piston assembly
B
Output shaft
1
Inner plates
2
Outer plates
3
Disc drum
4
Contact plate
5Description
Item
Input shaft
6
Cam disc
7
Springs
8
Pump plunger roller
9
Pump plunger roller
10
Pump plunger
11
Working piston roller
12
Working piston
13
G1076981en2008.50 Kuga8/2011
205-02- 9
Rear Drive Axle/Differential
205-02- 9
DESCRIPTION AND OPERATION
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