2011 FORD KUGA Transmission

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
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

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
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

E100541
Description
Item
Barometric Pressure
A
Base pressure
BDescription
Item
Increased base pressure (preload)
C
Operating pressure
Drive
To ensure very fast torque transmission, a higher
voltage is applied to the electric feed pump and
the control valve fully closed before the shaft-driven
pump is brought into operation. As a result, the
maximum pressure is raised above the base
pressure, and a torque of up to 80 Nm applied to
the multi-plate clutch. This achieves significantly
faster pressure build-up than with older systems (second generation). To protect the pump from
overloading, the pressure is restricted to approx.
10 bar by the pressure relief valve. The hydraulic
fluid flows back into the sump via the pressure
accumulator.
Pressure build-up
G1076981en2008.50 Kuga8/2011
205-02-
13
Rear Drive Axle/Differential
205-02- 13
DESCRIPTION AND OPERATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Differential Fluid Level Check
MaterialsSpecification
Name
WSP-M2C197-A / 4U7J-
M2C197-AA
Rear Axle Oil SAE 80W-
90 F
1. Refer to: Health and Safety Precautions (100-00
General Information, Description and
Operation).
2.
E104195
3. Material: Rear Axle Oil SAE 80W-90 F
(WSP-M2C197-A / 4U7J-M2C197-AA)
transmission fluid
•
• Correct the rear axle oil level if neccessary.
• 24ml~1mm
E104196
G1087340en2008.50 Kuga8/2011
205-02-
17
Rear Drive Axle/Differential
205-02- 17
GENERAL PROCEDURES
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Active On-Demand Coupling Fluid Level Check
MaterialsSpecification
Name
8U7J-8708687-AA
Transmission Oil AWD
Activation
5. Refer to: Health and Safety Precautions (100-00
General Information, Description and
Operation).
6. NOTE: This component does not have a drain
plug because the fluid does not need to be
drained or changed. 7.
E102723
8.
Material: Transmission Oil AWD
(8U7J-8708687-AA) transmission fluid
•
• Correct the oil level if neccessary.
• 24ml~1mm
5mm5mm
E102724
G1087341en2008.50 Kuga8/2011
205-02-
19
Rear Drive Axle/Differential
205-02- 19
GENERAL PROCEDURES
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

Active On-Demand Coupling Module
MaterialsSpecification
Name
8U7J-8708687-AA
Transmission Oil AWD
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).
Vehicles with 2.0L diesel engine
3.
x2x2
E102531
4.
1
2x6x3
1
2x6x3
E101687
5.
x4
x2
x4
x2
E102544
G1076971en2008.50 Kuga8/2011
205-02- 25
Rear Drive Axle/Differential
205-02- 25
REMOVAL AND INSTALLATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

All vehicles
14.
E102545
Installation
All vehicles
1.Material: Transmission Oil AWD
(8U7J-8708687-AA) transmission fluid
E102554
Vehicles with 2.0L diesel engine
2. Torque: 25Nm
x4
x2
x4
x2
E102544
G1076971en2008.50 Kuga8/2011
205-02- 28
Rear Drive Axle/Differential
205-02- 28
REMOVAL AND INSTALLATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL

8.
E114295
Vehicles with manual transmission
9.
1
2x6x3
1
2x6x3
E101687
10.Special Tool(s): 205-072, 303-249
205-072
303-249
205-072
303-249
E102495
11 .Special Tool(s): 303-249
303-249303-249
E102496
Vehicles with automatic transmission
12.
1
2x6
x3
1
2x6
x3
E114196
13.Special Tool(s): 205-072, 303-249
205-072
303-249
205-072
303-249
E102495
G1076972en2008.50 Kuga8/2011
205-02- 34
Rear Drive Axle/Differential
205-02- 34
REMOVAL AND INSTALLATION
TO MODEL INDEX
BACK TO CHAPTER INDEX
FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL