Page 1257 of 2057

E100540
Description
Item
Barometric Pressure
A
Base pressure
BDescription
Item
Increased base pressure (preload)
C
Operating pressure
Drive
The hydraulic fluid is drawn from the sump of the
hydraulic system and directed through a filter. The
feed pump pressurises the system and pumps
hydraulic fluid into the pump plungers. This base
pressure of 4 bar presses the rollers for the pump
plungers against the cam disc. At the same time,
hydraulic fluid flows into the working piston. This
eliminates the play in the clutch plates. The Haldex
clutch can respond quickly and distribute the torque
within fractions of a second. The spring force in
the pressure accumulator determines the base pressure of 4 bar and compensates pressure
fluctuations. A compensating spring works in the
opposite direction and prevents the plate discs
becoming blocked by the force of the working
piston. This restricts the transferable torque to
approx. 7 Nm. This value can, however, deviate
slightly due to temperature and/or the difference
in speed between the input and output shafts.
Increased base pressure (preload)
G1076981en2008.50 Kuga8/2011
205-02-
12
Rear Drive Axle/Differential
205-02- 12
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Page 1258 of 2057
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
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Page 1259 of 2057
E100542
Description
Item
Barometric Pressure
A
Base pressure
BDescription
Item
Increased base pressure (preload)
C
Operating pressure
Drive
The pump plungers generate the operating
pressure that is controlled by the control valve as
a function of the difference in speed between the
input and output shafts. The control valve works
progressively from fully open to fully closed. The
fluid pressure can be approx. 67 bar when the
control valve is fully open. The maximum pressure is mechanically controlled by means of the
pressure relief valve.
Design of the 4th generation Haldex
clutch
General overview
G1076981en2008.50 Kuga8/2011
205-02-
14
Rear Drive Axle/Differential
205-02- 14
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Page 1266 of 2057
Differential Case
General EquipmentCable Ties
Removal
All vehicles
1. Refer to: Rear Halfshaft (205-05 Rear Drive
Halfshafts, Removal and Installation).
Vehicles with 2.0L diesel engine
2.
1
2x6x3
1
2x6x3
E101687
3.
E101709
Vehicles with 2.5L engine
4. Refer to: Driveshaft (205-01 Driveshaft,
Removal and Installation).
5.
E114256
6.
x2x2
E114255
G1061458en2008.50 Kuga8/2011
205-02- 21
Rear Drive Axle/Differential
205-02- 21
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Page 1269 of 2057
Vehicles with 2.5L engine
6.
x2x2
E114255
7.Torque: 80Nm
E114256
8.Refer to: Driveshaft (205-01 Driveshaft,
Removal and Installation).
All vehicles
9. Refer to: Rear Halfshaft (205-05 Rear Drive
Halfshafts, Removal and Installation).
10. Refer to: Differential Fluid Level Check (205-02
Rear Drive Axle/Differential, General
Procedures).
G1061458en2008.50 Kuga8/2011
205-02- 24
Rear Drive Axle/Differential
205-02- 24
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Page 1277 of 2057
Differential Input Shaft Seal
Special Tool(s) / General Equipment204-093
Remover/Installer, Lower Arm
Bushing
14032
205-072
Universal Flange Holding
Wrench
15030A
205-078
Remover, Drive Pinion Seal
15048
Special Tool(s) / General Equipment205-078-01
Adapter for 205-078 (Thrust
Pad)
1504801
303-249
Remover, Crankshaft Timing
Pulley
21132
Puller
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
4.
E114034
5.
G1076972en2008.50 Kuga8/2011
205-02- 32
Rear Drive Axle/Differential
205-02- 32
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Page 1284 of 2057
Rear Halfshaft Seal
Special Tool(s) / General Equipment303-395
Installer, Crankshaft Seal
21171
Special Tool(s) / General EquipmentTire Lever
Removal
1. Refer to: Rear Halfshaft (205-05 Rear Drive
Halfshafts, Removal and Installation).
2. General Equipment: Tire Lever
E102535
3.General Equipment: Tire Lever
E102536
Installation
1.Special Tool(s): 303-395
303-395303-395
E102537
G1080736en2008.50 Kuga8/2011
205-02- 39
Rear Drive Axle/Differential
205-02- 39
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Page 1285 of 2057
2.Special Tool(s): 303-395
303-395303-395
E102538
3.Refer to: Rear Halfshaft (205-05 Rear Drive
Halfshafts, Removal and Installation).
4. Refer to: Differential Fluid Level Check (205-02
Rear Drive Axle/Differential, General
Procedures).
G1080736en2008.50 Kuga8/2011
205-02- 40
Rear Drive Axle/Differential
205-02- 40
REMOVAL AND INSTALLATION
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FORD KUGA 2011.0MY WORKSHOP REPAIR MANUAL