2011 FORD KUGA pressure

Wheels and Tires – Overview
Tire/wheel rim combinations
The following tire/wheel rim combinations are
available:
• 235/60 R16 V – 6.5X16 (*)
• 235/55 R17 V – 7.0X17 (*)
• 235/55 R17 V – 7.5X17 (*)
• 235/50 R18 V – 7.5X18
• 235/45 R19 V – 8.0X19
(*) Also available as tires with run-flat capabilities.
Use of snow chains
Snow chains are only approved for use with size
235/60R16 tires.
Fine chains with a link thickness of 10mm may be
used at speeds of up to 50 km/h (please refer to
the manufacturer's instructions).
Coarser chains with a link thickness of 11 to 14
mm may be used at speeds of up to 40 km/h
(please refer to the manufacturer's instructions).
Tire repair kit
If the tires used do not have run-flat properties then
the vehicle will be equipped with a tire repair kit.
A tire repair kit is located in the spare wheel well
in the luggage compartment.
The tire repair kit consists of:
• a compressor with a pressure gauge,
• a lead for voltage supply via the cigar lighter,
• an air hose,
• tire sealant.
A tire filled with tire sealant must be replaced with
a new tire after 200 km at the latest. Read and
observe the instructions regarding the tire low
pressure sensors (see lesson 4 – Tire pressure
monitoring system).
Instructions on handling and using the tire repair
kit can be found in a separate operating manual
that is enclosed with the tire repair kit.
G1000249en2008.50 Kuga8/2011
204-04-3
Wheels and Tires
204-04- 3
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Run-Flat Tires – Overview
Tires with Run-flat Properties
E68867
2
1
3
2
4
1
3
BA
Description
Item
Standard tire after pressure loss
A
Tire with run-flat properties after pressure
loss
B
Wheel position with correct tire pressure
1Description
Item
Wheel position with insufficient tire
pressure
2
Tires
3
Reinforced sidewall
4
In addition to the standard tires, run-flattires are
also optionally available. These tires have a
reinforced sidewall and provide the advantage that
the tire maintains its shape to a large extent even
in the event of insufficient tire pressure. This
ensures that the vehicle handling remains stable.
Advantage:
• These tires maintain their shape to a large extent, even in the event of insufficient tire
pressure. This ensures that the vehicle handling
remains stable.
Special wheel rims (EH2) and a tire pressure
monitoring system are needed for run-flat tires.
Standard tires can also be installed on the EH2
(EH = Extended Hump) wheel rims. Tires with
run-flat properties have the same size code and
the same appearance as standard tires.
With some tires, the code RFfor run-flat is included
in the tire designation, e.g. 205/55 RF16. Tires with run-flat properties have various different
codes on the sidewall, depending on the
manufacturer.
• The RFT logo
• "RUNFLAT" as an additional designation
• The additional designation "RSC" (RSC =
Runflat System Component)
• The additional designation "SSR" (SSR = Self
S upporting Run-Flat-Tire)
• The additional designation "SST" (SST = Self
S upporting Run-Flat- Tire)
WARNING: If a tire with run-flat properties
is used without air then the vehicle speed
must not exceed 80 km/h and the vehicle
must not be driven for distances in excess
of 80 km.
Note: Vehicles equipped at the factory with run-flat
tires do not feature a tire repair kit or a spare wheel.
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204-04- 4
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Tire Pressure Monitoring System (TPMS) – Overview
Description of operation
The tire pressure monitoring system is able to
detect loss of air in a tire at an early stage and warn
the driver. Because it can only compare the
behavior of the tires with each other, it is not
possible to draw conclusions about the absolute
tire pressure. It is also not possible to monitor the
spare tire pressure. In order for the system to
operate correctly, the tire pressures must be
regularly checked and corrected and the system
subsequently initialized (see below).
The tire pressure monitoring system used here,
depending on the equipment level, is built into the
anti-lock braking system (ABS) as an extra function
and therefore does not have its own sensors.
The ABS module determines the loss of pressure
in the tires by calculation using the wheel speed
sensors of the ABS system. If a tire loses pressure,
its diameter decreases and the speed of the wheel
therefore increases. If the ABS module detects
such a loss in pressure, it sends a signal to the
instrument cluster via the CAN bus and a warning
message is displayed in the driver information
system. The warning threshold depends among
other things on the dimension of the tires being
used, the vehicle operating conditions and the
status at the last initialization. Since neither the
absolute tire pressure nor the position of the tire is
known, after a tire pressure warning the pressure
of all the tires must be checked and the system
re-initialized. If necessary, the cause of the loss of
pressure must be investigated.
Furthermore, regular pressure checks are
necessary. The system must be initialized after a
tire is changed, winter or summer tires fitted, the
pressures corrected or adjusted to suit the vehicle
load. This can be done by the driver using the
driver information system. For further information,
see: Owner’s Manual.
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Wheels and Tires
Inspection and Verification
Visual Inspection Chart
MechanicalWheel(s)Tire(s)
Tire pressure(s) * Wheel nuts
Wheel studs
* Vehicles equipped with a tire deflation detection system (DDS) must be inspected for correct operation using the Ford approved diagnostic tool.
To maximize tire performance, inspect the tires for
signs of incorrect inflation and uneven wear which
may indicate a need for balancing, rotation or
suspension alignment. Tires should also be
checked frequently for cuts, stone bruises,
abrasions, blisters and for objects that may have
become embedded in the tread. More frequent
inspections are recommended when rapid or
extreme temperature changes occur or when road
surfaces are rough or occasionally littered with
foreign material.
As a further visible check of tire condition, tread
wear indicators are molded into the bottom of the
tread grooves. When these indicator bands become
visible, new tires must be installed.
Tire Wear Diagnosis
Uneven wear is usually caused by either excessive
camber or excessive toe on tires.
Sometimes incorrect toe settings or worn struts will
cause severe `cupping' or `scalloped' tire wear on
non-driven wheels.
Severely incorrect toe settings will also cause other
unusual wear patterns.
Tire Vibration Diagnosis
A tire vibration diagnostic procedure always begins
with a road test. The road test and customer
interview (if available) will provide much of the
information needed to find the source of a vibration. During the road test, drive the vehicle on a road
that is smooth and free of undulations. If vibration
is apparent, note and record the following:
– the speed at which the vibration occurs.
– what type of vibration occurs in each speed
range.
– mechanical or audible
– how the vibration is affected by changes in the following:
– engine torque
– vehicle speed
– engine speed
– type of vibration - sensitivity: – torque sensitive
– vehicle speed sensitive
– engine speed sensitive
The following explanations help isolate the source
of the vibration.
Torque Sensitive
This means that the condition can be improved or
made worse by accelerating, decelerating,
coasting, maintaining a steady vehicle speed or
applying engine torque.
Vehicle Speed Sensitive
This means that the vibration always occurs at the
same vehicle speed and is not affected by engine
torque, engine speed or the transmission gear
selected.
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204-04- 6
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204-04- 6
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Engine Speed Sensitive
This means that the vibration occurs at varying
vehicle speeds when a different transmission gear
is selected. It can sometimes be isolated by
increasing or decreasing engine speed with the
transmission in NEUTRAL or by stall testing with
the transmission in gear. If the condition is engine
speed sensitive, the cause is probably not related
to the tires.
If the road test indicates that there is tire whine,
but no shake or vibration, the noise originates with
the contact between the tire and the road surface.A thumping noise usually means that the tire is flat
or has soft spots making a noise as they slap the
roadway. Tire whine can be distinguished from axle
noise. Tire whine remains the same over a range
of speeds.
A complete road test procedure is described in
Section 100-04.
REFER to:
Noise, Vibration and Harshness (NVH)
(100-04 Noise, Vibration and Harshness,
Diagnosis and Testing).
Symptom Chart
Action
Possible Sources
Symptom
• ADJUST the tire pressure andreset the DDS. For additional
information REFER to the
owners guide.
• Loss of tire pressure.
• DDS warning lamp illuminated
• REFER to the DDS resetprocedure. For additional
information REFER to the
owners guide.
• The DDS reset procedure was
not carried out after adjustment
of the tire pressure.
• DDS warning lamp illuminated
with the correct tire pressure
• ADJUST the tire pressure andreset the DDS. For additional
information REFER to the
owners guide.
• The DDS reset procedure was
carried out under incorrect tire
conditions.
• DDS warning lamp not illumin-
ated when one or more tire(s)
have the incorrect tire pressure
• REFER to the DDS resetprocedure. For additional
information REFER to the
owners guide.
• The DDS reset procedure was
not completed.
• DDS reset command was not
confirmed
• REFER to the Ford approveddiagnostic tool.
• Anti-lock brake system (ABS)
module.
• DDS failure warning display
• ADJUST the tire pressure(s).
• Tire(s) under-inflated.
• Tire(s) show excess wear on
edge of tread
• CORRECT as necessary.
• Vehicle overloaded.
• ADJUST the wheel alignment.REFER to: Suspension System
(204-00 Suspension System
- General Information,
Diagnosis and Testing).
• Incorrect wheel alignment.
• ADJUST the tire pressure(s).
• Tire(s) over-inflated.
• Tire(s) show excess wear in
center of tread
• ADJUST the tire pressure(s).
• Incorrect tire pressure(s).
• Other excessive tire wear
concerns
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204-04- 7
Wheels and Tires
204-04- 7
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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.
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204-04- 9
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204-04- 9
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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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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
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Rear Drive Axle/Differential
205-02- 6
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