100 FORD KUGA 2011 1.G Workshop 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
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Rear Drive Axle/Differential
205-02- 13
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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
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Rear Drive Axle/Differential
205-02- 14
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6
7
8
9
10
11
1
2
3
4
5
6
7
8
9
10
11
E114914
Description
Item
Haldex clutch fluid
1
Inlet filter
2
Electric feed pump
3
Filters4
Pressure accumulator
5Description
Item
Control valve
6
Dished washer
7
Ring piston
8
Clutch plate pack
9
Return pressure accumulator
10
Return control valve
11
Full torque is available at any time on the 4th
generation Haldex clutch because the pressure is
not dependent on the difference in the speeds of
rotation. This is used for instance to activate the
Haldex clutch for better traction when moving off.
On the 4th generation Haldex clutch, the preload
function which applied 80 Nm to the plates in the
3rd generation is no longer required.
On request from the control unit and at engine
speeds above 400 rpm, the electric feed pump runs
and maintains the storage pressure at about 30
bar.
A pressure reducing valve acts as a control valve,
allowing the all-wheel drive control unit to control
the pressure with much greater precision. The
all-wheel drive control unit monitors the position and function of the control valve. The control valve
distributes the pressure, depending on the
requirements, across its three outlet openings
(storage pressure, working pressure, return).
From the storage pressure (30 bar) and depending
on the requirements, the control valve regulates a
working pressure of 0 - 17 bar, which is applied to
the ring piston. At 17 bar working pressure, the
maximum torque of 1000 Nm is transferred to the
rear wheels. The all-wheel drive control unit
ensures the best possible performance under all
driving conditions, for all road conditions and
independent of the speed.
G1076981en2008.50 Kuga8/2011
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Rear Drive Axle/Differential
205-02- 16
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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
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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
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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
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Rear Drive Axle/Differential
205-02- 25
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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.
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Rear Drive Axle/Differential
205-02- 32
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Drive Pinion Seal
Special Tool(s)303-293
Remover, Crankshaft Seal
21143
Special Tool(s)308-643
Installer, Input Shaft Seal
E65343
Removal
1.Refer to: Health and Safety Precautions (100-00
General Information, Description and
Operation).
2. Refer to: Active On-Demand Coupling Module
(205-02 Rear Drive Axle/Differential, Removal
and Installation).
3. Special Tool(s): 303-293
303-293
303-293
303-293
303-293
E102546
Installation
1. CAUTION: Take extra care not to
damage the seal.
Special Tool(s): 308-643
308-643308-643
E102547
2.Refer to: Active On-Demand Coupling Module
(205-02 Rear Drive Axle/Differential, Removal
and Installation).
G1357281en2008.50 Kuga8/2011
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205-02- 41
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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.
E114257
4. WARNING: Be prepared to collect escaping fluid.
E124748
5.
E124778
6. WARNING: Be prepared to collectescaping fluid.
x2x2
E124749
7.
E128365
G1268328en2008.50 Kuga8/2011
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Rear Drive Axle/Differential
205-02- 43
DISASSEMBLY AND ASSEMBLY
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Front Drive Halfshafts
Inspection and Verification
NOTE:New front wheel drive halfshafts should not
be installed unless disassembly and inspection
reveals unusual wear.
1. Inspect front wheel driveshaft joint boots for evidence of cracks, tears or splits.
NOTE: While inspecting the front wheel driveshaft
CV joint boots, watch for indentations (dimples) in
the boot convolutions. If an indentation is observed,
it must be removed.
2. Inspect the underbody for any indication of grease splatter in the vicinity of the front wheel
driveshaft CV joint boots outboard and inboard
locations, which is an indication of front wheel
driveshaft CV joint boot and/or front wheel
driveshaft CV joint boot clamp damage. 3. Inspect for inboard CV joint stub shaft pilot
bearing housing seal leakage at the front wheel
driveshaft CV joint.
4. Make sure front axle wheel hub retainer is the correct prevailing torque type.
5. The silicone front wheel driveshaft CV joint boot will sweat during operation, causing a light film
of grease to show on the outside of the front
wheel driveshaft CV joint boot. This condition
is normal.
NOTE: Halfshafts are not balanced and do not
contribute to rotational vibration.
6. If the concerns remain after the inspection, determine the symptoms and go to the Symptom
Chart. For additional Noise, Vibration and
Harshness (NVH). REFER to Section 100-04
[Noise, Vibration and Harshness] .
Symptom Chart
Action
Possible Sources
Symptom
• INSPECT, CLEAN andLUBRICATE as necessary.
• Inadequate or contaminated
lube in outboard/inboard front
wheel driveshaft CV joint.
• Clicking, Popping or Grinding
Noises While Turning
• INSPECT and REPAIR asnecessary.
• Another component contacting
driveshaft assembly.
• INSPECT and REPAIR asnecessary. REFER to
Section 204-00 [Suspension
System - General Information]
/ 206-00 [Brake System -
General Information] /211-00
[Steering System - General
Information] .
• Wheel bearings, brakes,
suspension or steering
components.
• REPAIR or INSTALL new asnecessary. REFER to
Section 204-04 [Wheels and
Tires] .
• Out of balance front wheels or
tires.
• Vibration at Highway Speeds
• REPAIR or INSTALL new asnecessary. REFER to
Section 204-04 [Wheels and
Tires] .
• Out-of-round tires.
• REPAIR or INSTALL new asnecessary.
REFER to Halfshaft Disas-
semblv and Assembly in this
section.
• Incorrectly seated outboard
front wheel driveshaft CV joint
in front wheel hub.
G17442en2008.50 Kuga8/2011
205-04- 3
Front Drive Halfshafts
205-04- 3
DIAGNOSIS AND TESTING
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