Page 1238 of 2057
Wheel and Tire
Removal
CAUTION: Do not use heat to loosen a
seized wheel nut.
1. Loosen: 360°
E74933
x5
2.Refer to: Jacking(100-02 Jacking and Lifting,
Description and Operation).
Refer to: Lifting(100-02 Jacking and Lifting,
Description and Operation).
3.
E74934
x5
Installation
1. WARNING: Make sure that the mating faces are clean and free of corrosion
and foreign material
NOTE: Only tighten the nuts finger tight at this
stage.
E74934
x5
2. Lower the vehicle.
3. Tighten the wheel nuts in the sequence shown.
Torque: 130
Nm
E74931
1
43
25
G1000251en2008.50 Kuga8/2011
204-04- 11
Wheels and Tires
204-04- 11
REMOVAL AND INSTALLATION
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Page 1240 of 2057
Driveshaft(15 514 0)
Removal
All vehicles
1.Refer to: Health and Safety Precautions (100-00
General Information, Description and
Operation).
2. Refer to: Lifting(100-02 Jacking and Lifting,
Description and Operation).
3.
E98543
x7
Vehicles with 2.0L diesel engine
4.
E114034
Vehicles with 2.5L engine
5.
E114375
All vehicles
6.
x2
x2
x2
x2
x2
x2
E114188
G1070580en2008.50 Kuga8/2011
205-01- 2
Driveshaft
205-01- 2
REMOVAL AND INSTALLATION
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Page 1246 of 2057

SECTION 205-02 Rear Drive Axle/Differential
VEHICLE APPLICATION:2008.50 Kuga
PA G E
CONTENTS
DESCRIPTION AND OPERATION
205-02-2
Rear Drive Axle and Differential (Component Location) .....................................................
205-02-6
Rear Drive Axle and Differential (System Operation and Component Description) ...........
205-02-6
System Operation ........................................................................\
.......................................
205-02-6
General Information ........................................................................\
................................
205-02-6
Driving situations ........................................................................\
....................................
205-02-6
Haldex clutch ........................................................................\
..........................................
205-02-7
General overview ........................................................................\
....................................
205-02-7
Operation ........................................................................\
................................................
205-02-7
Design of the 3rd generation Haldex clutch ....................................................................
205-02-9
Design of the multi-plate clutch ........................................................................\
...............
205-02-10
All-wheel drive control unit ........................................................................\
......................
205-02-10
Electric feed pump ........................................................................\
..................................
205-02-10
Pressure control - 3rd generation Haldex clutch .............................................................
205-02-11
Base pressure ........................................................................\
.........................................
205-02-12
Increased base pressure (preload) ........................................................................\
.........
205-02-13
Pressure build-up ........................................................................\
....................................
205-02-14
Design of the 4th generation Haldex clutch ...................................................................
205-02-14
General overview ........................................................................\
....................................
205-02-15
Pressure control - 4th generation Haldex clutch .............................................................
GENERAL PROCEDURES 205-02-17
Differential Fluid Level Check ........................................................................\
.....................
205-02-19
Active On-Demand Coupling Fluid Level Check ................................................................
REMOVAL AND INSTALLATION 205-02-21
Differential Case ........................................................................\
.........................................
205-02-25
Active On-Demand Coupling Module ........................................................................\
.........
205-02-32
Differential Input Shaft Seal ........................................................................\
........................
205-02-38
Differential Support Insulator ........................................................................\
......................
205-02-39
Rear Halfshaft Seal ........................................................................\
.....................................
205-02-41
Drive Pinion Seal ........................................................................\
........................................
DISASSEMBLY AND ASSEMBLY
205-02-42
Active On-Demand Coupling — Vehicles With: 5-Speed Automatic Transaxle - AW55
AWD/6-Speed Automatic Transaxle - 6DCT450 ...............................................................
205-02-1
Rear Drive Axle/Differential
205-02- 1
.
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Page 1247 of 2057
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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Page 1248 of 2057
Rear axle
1
2
3
E102418
Description
Item
Rear axle differential.
1
All-wheel drive control unit
2
Haldex controlled coupling
3
G1076980en2008.50 Kuga8/2011
205-02- 3
Rear Drive Axle/Differential
205-02- 3
DESCRIPTION AND OPERATION
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Page 1249 of 2057
Mounting points - rear differential
E102861
Haldex coupling generation III/IV
12
E114553
Description
Item
Haldex coupling generation III
1
Haldex coupling generation IV
2
G1076980en2008.50 Kuga8/2011
205-02- 4
Rear Drive Axle/Differential
205-02- 4
DESCRIPTION AND OPERATION
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Page 1250 of 2057
Haldex coupling generation III
1
2
3
E114554
Description
Item
All-wheel drive control unit
1
Electric feed pump
2
Oil filter
3
Haldex coupling generation IV
1
2
3
4
E114555
Description
Item
All-wheel drive control unit
1
Electric feed pump
2
Reservoir
3
Oil filter
4
G1076980en2008.50 Kuga8/2011
205-02- 5
Rear Drive Axle/Differential
205-02- 5
DESCRIPTION AND OPERATION
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Page 1251 of 2057

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
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