Qashqai J11. Front suspension — part 1
FSU-1
SUSPENSION
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SECTION
FSU
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CONTENTS
FRONT SUSPENSION
SYMPTOM DIAGNOSIS . . . . . . . ...
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING . . . . . . . .
NVH Troubleshooting Chart . . . . . . . . . ..
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect . . . . . . . . .....
Precaution for Procedure without Cowl Top Cover
. ..
Precautions for Suspension . . . . . . . . . ..
PREPARATION . . . . . . . . . . .
PREPARATION . . . . . . . . . . . . ...
Special Service Tool . . . . . . . . . . . .....
Commercial Service Tool . . . . . . . . . . ..
PERIODIC MAINTENANCE . . . . . . ..
FRONT SUSPENSION ASSEMBLY . . . . ...
Inspection . . . . . . . . . . . . . . . . ..
WHEEL ALIGNMENT . . . . . . . . . . ..
Wheel Alignment Inspection . . . . . . . . . ..
REMOVAL AND INSTALLATION . . . .
FRONT COIL SPRING AND STRUT . . . . .
Exploded View . . . . . . . . . . . . . . ..
Removal and Installation . . . . . . . . . . .
Disassembly and Assembly . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
Disposal . . . . . . . . . . . . . . . . ...
TRANSVERSE LINK . . . . . . . . . . .
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
FRONT STABILIZER . . . . . . . . . .
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
FRONT SUSPENSION MEMBER . . . . . .
Exploded View . . . . . . . . . . . . . . .
Removal and Installation . . . . . . . . . . .
Inspection . . . . . . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . . .
Wheel Alignment . . . . . . . . . . . . . .
Ball Joint . . . . . . . . . . . . . . . . ..
FSU-2
< SYMPTOM DIAGNOSIS >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000010297061
Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
—
—
—
NVH in WT section
NVH in WT section
Possible cause and SUSPECTED PARTS
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PROPELLER SHAF
T (4WD)
DIFFERE
N
T
IAL (4WD
)
FRONT AXLE AND F
R
ONT
SUSPENSI
ON
TIRES
R
O
AD
W
H
EE
L
DRIVE SHA
F
T
BRAKE
STEERI
N
G
Symp-
tom
FRONT SUSPEN-
SION
Noise
× × × × × ×
× × ×
× × ×
× ×
Shake
× × × ×
×
×
×
× × ×
× ×
Vibration
× × × × ×
×
×
×
×
×
Shimmy
× × × ×
×
×
× ×
× ×
Judder
× × ×
×
× ×
× ×
Poor quality ride or han-
dling
× × × × ×
× ×
×
× ×
PRECAUTIONS
FSU-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000010297062
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.
WARNING:
Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000010297063
CAUTION:
Comply with the following cautions to prevent any error and malfunction.
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-
THEFT SYSTEM).
• Remove and install all control units after disconnecting both battery cables with the ignition switch
in the LOCK position.
• Always use CONSULT to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
Use the Intelligent Key or mechanical key to turn the ignition switch to the ACC position. At this time, the
steering lock will be released.
3.
Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4.
Perform the necessary repair operation.
FSU-4
< PRECAUTION >
PRECAUTIONS
5.
When the repair work is completed, return the ignition switch to the LOCK position before connecting the
battery cables. (At this time, the steering lock mechanism will engage.)
6.
Perform a self-diagnosis check of all control units using CONSULT.
Precaution for Procedure without Cowl Top Cover
INFOID:0000000010297064
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.
Precautions for Suspension
INFOID:0000000010297065
CAUTION:
• When installing rubber bushings, the final tightening must be carried out under unladen conditions
with tires on ground. Oil might shorten the life of rubber bushings. Be sure to wipe off any spilled oil.
- Unladen conditions mean that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools
and mats are in designated positions.
• After servicing suspension parts, be sure to check wheel alignment.
• Self-lock nuts are not reusable. Always use new ones when installing. Since new self-lock nuts are
pre-oiled, tighten as they are.
PIIB3706J
PREPARATION
FSU-5
< PREPARATION >
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PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000010297066
Commercial Service Tool
INFOID:0000000010590087
Tool number
Tool name
Description
KV991040S1
CCK gauge attachment
1. Plate
2. Guide bolt
3. Nut
4. Spring
5. Center plate
6. KV99104020 Adapter A
a: 72 mm (2.83 in) dia.
7. KV99104030 Adapter B
b: 65 mm (2.56 in) dia.
8. KV99104040 Adapter C
c: 57 mm (2.24 in) dia.
9. KV99104050 Adapter D
d: 53.4 mm (2.102 in) dia.
Measuring wheel alignment
ST35652000
Strut attachment
Disassembling and assembling strut
S-NT498
ZZA0807D
Tool name
Description
Spring compressor
Removing and installing coil spring
NI-4038
Chisel
Separating steering knuckle from front coil
spring and strut
S-NT717
ALEIA0224ZZ
FSU-6
< PERIODIC MAINTENANCE >
FRONT SUSPENSION ASSEMBLY
PERIODIC MAINTENANCE
FRONT SUSPENSION ASSEMBLY
Inspection
INFOID:0000000010297068
MOUTING INSPECTION
Check the mounting conditions (looseness, backlash) of each component and component conditions (wear,
damage) are normal.
BALL JOINT AXIAL END PLAY
1.
Set front wheels in a straight-ahead position.
CAUTION:
Never depress brake pedal.
2.
Place an iron bar or equivalent between transverse link and steering knuckle.
3.
Measure axial end play by prying it up and down.
CAUTION:
• Be careful not to damage ball joint boot. Never damage the installation position by applying
excessive force.
STRUT ASSEMBLY
Check for oil leakage and damage, and replace if malfunction is detected.
Standard end play
: Refer to
.
WHEEL ALIGNMENT
FSU-7
< PERIODIC MAINTENANCE >
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WHEEL ALIGNMENT
Wheel Alignment Inspection
INFOID:0000000010297069
INSPECTION
Description
CAUTION:
• Camber, caster, kingpin inclination angles cannot be adjusted.
• If camber, caster, or kingpin inclination angle exceeds the standard value, check front suspension
parts for wear and damage. Replace suspect parts if a malfunction is detected.
• Kingpin inclination angle is reference value, no inspection is required.
Measure wheel alignment under unladen conditions.
NOTE:
“Unladen conditions” means that fuel, engine coolant, and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.
Preliminary Check
Check the following:
• Tires for improper air pressure and wear
• Road wheels for runout: Refer to
• Wheel bearing axial end play: Refer to
• Transverse link ball joint axial end play: Refer to
• Strut operation.
• Each mounting part of axle and suspension for looseness and deformation
• Each of suspension member and transverse link for cracks, deformation and other damage
• Vehicle height (posture)
CAMBER, CASTER, AND KINGPIN INCLINATION ANGLES
• Camber, caster, kingpin inclination angles cannot be adjusted.
• Before inspection, mount front wheels onto turning radius gauge. Mount rear wheels onto a stand at the
same height so that vehicle remains horizontal.
Using a CCK Gauge
Install the CCK gauge attachment (SST: KV991040S1) with the following procedure on wheel, then measure
wheel alignment.
1.
Remove three wheel nuts, and install the guide bolts to hub bolt.
2.
Screw the adapter into the plate until it contacts the plate tightly.
3.
Screw the center plate into the plate.
4.
Insert the plate assembly on the guide bolt. Put the spring in,
and then evenly screw the three guide bolt nuts. When fastening
the guide nuts, do not completely compress the spring.
5.
Place the dent of alignment gauge onto the projection of the
center plate and tightly contact them to measure.
CAUTION:
• If camber, caster, or kingpin inclination angle exceeds the
standard value, check front suspension parts for wear and
damage. Replace suspect parts if a malfunction is
detected.
• Kingpin inclination angle is reference value, no inspection
is required.
SEIA0240E
Camber, caster, kingpin in-
clination angles
: Refer to
SEIA0241E
FSU-8
< PERIODIC MAINTENANCE >
WHEEL ALIGNMENT
Toe-In
Measure toe-in by the following procedure.
WARNING:
• Always perform the following procedure on a flat surface.
• Make sure that no person is in front of vehicle before pushing it.
1.
Bounce front of vehicle up and down to stabilize the vehicle height (posture).
2.
Push vehicle straight ahead about 5 m (16 ft).
3.
Put matching mark (A) on base line of the tread (rear side) of
both tires at the same height of hub center. These are measur-
ing points.
4.
Measure distance (A) (rear side).
5.
Push vehicle slowly ahead to rotate wheels 180 degrees (1/2
turn).
NOTE:
If the wheels rotates more than 180 degrees (1/2 turn), start this
procedure again from the beginning. Do not push the vehicle
backward.
6.
Measure distance (B) (front side).
• If toe-in exceeds the standard value, adjust toe-in by varying the length of between steering outer socket
and inner socket.
JPEIA0014ZZ
Total toe-in = A – B
Total toe-in
: Refer to
JPEIA0015ZZ
FRONT COIL SPRING AND STRUT
FSU-9
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
FRONT COIL SPRING AND STRUT
Exploded View
INFOID:0000000010297070
E1EIA0115GB
FSU-10
< REMOVAL AND INSTALLATION >
FRONT COIL SPRING AND STRUT
Removal and Installation
INFOID:0000000010297071
REMOVAL
1.
Remove tires from vehicle.
2.
Remove wheel hub lock nut.
3.
Tap wheel hub lock nut with a piece of wood to disengage wheel
hub and bearing from drive shaft.
NOTE:
Use a suitable puller if wheel hub and bearing and drive shaft
cannot be separated even after performing the above proce-
dure.
4.
Remove brake rotor and caliper. Refer to
BR-37, "BRAKE CALIPER ASSEMBLY : Removal and Installa-
5.
Remove the brake hose lock plate from strut.
BR-19, "FRONT : Exploded View"
(RHD).
6.
Remove the bolt and separate the front wheel sensor from the steering knuckle. Separate the harness
from the brackets and position aside.
CAUTION:
• Failure to separate the front wheel sensor from the steering knuckle may result in damage to the
front wheel sensor.
• Pull out the front wheel sensor, being careful to turn it as little as possible. Do not pull on wheel
sensor harness.
7.
Remove the nut and separate the stabilizer connecting rod from the strut bracket.
8.
Separate axle transverse link and steering knuckle.
9.
Remove front strut lower bolt.
1.
Strut mounting insulator
2.
Strut mounting bearing
3.
Bound bumper
4.
Coil spring
5.
Lower rubber seat
6.
Strut
7.
Steering knuckle
8.
Stabilizer connecting rod
9.
Stabilizer clamp
10. Stabilizer bushing
11. Stabilizer bar
12. Front suspension member
13. Rebound stopper rubber
14. Front suspension member stay
15. Transverse link
16. Rear suspension member stay
17. Front suspension member insulator
Refer to
for symbols in the figure.
JPDIG0070ZZ
FRONT COIL SPRING AND STRUT
FSU-11
< REMOVAL AND INSTALLATION >
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10. Open the slot using a chisel (NI-4038) (A). Separate the steering
knuckle (1) from the front coil spring and strut.
CAUTION:
• Never drop steering knuckle.
11. Separate strut lower.
12. Remove knuckle assembly (knuckle and wheel hub).
13. Remove strut upper bolts.
14. Remove front strut from the vehicle.
INSTALLATION
CAUTION:
• Never reuse the wheel hub lock nut.
• Never reuse the cotter pin.
• Never reuse steering knuckle upper bolt.
• Never reuse steering knuckle lower nut.
Note the following, and install in the reverse order of removal.
• Perform final tightening of bolts and nuts, under unladen conditions with tires on level ground.
Disassembly and Assembly
INFOID:0000000010297072
DISASSEMBLY
CAUTION:
Never damage strut assembly piston rod when removing components from strut assembly.
1.
Install strut attachment (A) (SST: ST35652000) to strut assem-
bly and secure it in a vise.
CAUTION:
When installing the strut attachment to strut assembly,
wrap a shop cloth around strut to protect from damage.
ALDIA0492ZZ
JPEIA0006ZZ
FSU-12
< REMOVAL AND INSTALLATION >
FRONT COIL SPRING AND STRUT
2.
Using a spring compressor (A) (commercial service tool), com-
press coil spring between strut mounting bearing and lower rub-
ber seat (on strut assembly) until coil spring with a spring
compressor is free.
CAUTION:
Be sure a spring compressor is securely attached to coil
spring. Compress coil spring.
3.
Make sure coil spring with a spring compressor between strut
mounting bearing and lower rubber seat (strut assembly) is free.
And then remove piston rod lock nut while securing the piston
rod tip so that piston rod does not turn.
4.
Remove strut mounting insulator and strut mounting bearing,
and bound bumper from strut.
5.
After remove coil spring with a spring compressor, and then gradually release a spring compressor.
CAUTION:
Loosen while making sure coil spring attachment position does not move.
6.
Remove lower rubber seat from strut.
7.
Remove the strut attachment (SST: ST35652000) from strut.
ASSEMBLY
1.
Install strut attachment (SST: ST35652000) to strut and secure it in a vise.
CAUTION:
When installing the strut attachment to strut assembly, wrap a shop cloth around strut to protect
from damage.
2.
Install lower rubber seat.
3.
Install bound bumper.
4.
Compress coil spring using a spring compressor (commercial service tool), and install it onto strut assem-
bly.
CAUTION:
• Face tube side of coil spring (1) downward. Align the
lower end (A) to lower rubber seat (2).
• Be sure a spring compress is securely attached to coil
spring. Compress coil spring.
5.
Install strut mounting bearing and strut mounting insulator to strut.
6.
Secure piston rod tip so that piston rod does not turn, then tighten piston rod lock nut with specified
torque.
CAUTION:
Never reuse piston rod lock nut.
7.
Gradually release a spring compressor, and remove coil spring.
CAUTION:
Loosen while making sure coil spring attachment position does not move.
8.
Remove the strut attachment from strut assembly.
Inspection
INFOID:0000000010297073
INSPECTION AFTER REMOVAL
Strut
Check the following items, and replace the parts if necessary.
• Strut for deformation, cracks or damage
• Piston rod for damage, uneven wear or distortion
JPEIA0007ZZ
Maximum Gap (A)
: 5mm (0.2 in)
JPEIA0027ZZ
FRONT COIL SPRING AND STRUT
FSU-13
< REMOVAL AND INSTALLATION >
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• Oil leakage
Strut Mounting Insulator and Rubber Parts InspectionCheck strut mounting insulator for cracks and rubber
parts for wear. Replace it if necessary.
Coil SpringCheck coil spring for cracks, wear or damage. Replace it if necessary.
INSPECTION AFTER INSTALLATION
1.
Check wheel alignment. Refer to
FSU-7, "Wheel Alignment Inspection"
.
2.
Adjust neutral position of steering angle sensor. Refer to
.
Disposal
INFOID:0000000010425116
1.
Set front coil spring and strut horizontally to the ground with the piston rod fully extracted.
2.
Drill 2 – 3 mm (0.08 – 0.12 in) hole at the position (
) from top
as shown in the figure to release gas gradually.
CAUTION:
• Wear eye protection (safety glasses).
• Wear gloves.
• Be careful with metal chips or oil blown out by the com-
pressed gas.
NOTE:
• Drill vertically in this direction (
).
• Directly to the outer tube avoiding brackets.
• The gas is clear, colorless, odorless, and harmless.
3.
Position the drilled hole downward and drain oil by moving the piston rod several times.
CAUTION:
Dispose of drained oil according to the law and local regulations.
A:
20 – 30 mm (0.79 – 1.18 in)
ALEIA0200ZZ
FSU-14
< REMOVAL AND INSTALLATION >
TRANSVERSE LINK
TRANSVERSE LINK
Exploded View
INFOID:0000000010297075
1.
Strut mounting insulator
2.
Strut mounting bearing
3.
Bound bumper
4.
Coil spring
5.
Lower rubber seat
6.
Strut
7.
Steering knuckle
8.
Stabilizer connecting rod
9.
Stabilizer clamp
E1EIA0115GB
TRANSVERSE LINK
FSU-15
< REMOVAL AND INSTALLATION >
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Removal and Installation
INFOID:0000000010297076
REMOVAL
1.
Remove tires from vehicle.
2.
Remove the engine undercover.
3.
Remove the steering knuckle lower bolt and nut.
4.
Remove the nut, and separate the stabilizer connecting rod (LH/RH) from the strut bracket.
5.
Remove transverse link bolts from suspension member, and remove transverse link..
NOTE:
Transverse link cannot be pulled out because the mounting bolt
(
) of transverse link at the rear of the mounting area located
on the front side of vehicle hits against the stabilizer bar. There-
fore, get stabilizer bar out of the way to remove the transverse
link.
INSTALLATION
Note the following, and install in the reverse order of removal.
• Perform final tightening of bolts and nuts at the front suspension member, under unladen conditions with
tires on level ground.
Inspection
INFOID:0000000010297077
INSPECTION AFTER REMOVAL
Visual Inspection
Check the following:
• Transverse link and bushing for deformation, cracks or damage. Replace it if necessary.
• Ball joint boot for cracks or other damage, and also for grease leakage. Replace it if necessary.
Ball Joint Inspection
Manually move ball stud to confirm it moves smoothly with no binding.
Swing Torque Inspection
NOTE:
Before measurement, move ball stud at least ten times by hand to check for smooth movement.
• Hook a spring balance (A) at cotter pin mounting hole. Confirm
spring balance measurement value is within specifications when
ball stud begins moving.
- If swing torque exceeds standard range, replace transverse link
assembly.
Axial End Play Inspection
• Move tip of ball stud in axial direction to check for looseness.
10. Stabilizer bushing
11. Stabilizer bar
12. Front suspension member
13. Rebound stopper rubber
14. Front suspension member stay
15. Transverse link
16. Rear suspension member stay
17. Front suspension member insulator
Refer to
SEIA0633J
Standard
Swing torque
Spring balance
measurement
JPEIA0005ZZ
FSU-16
< REMOVAL AND INSTALLATION >
TRANSVERSE LINK
- If axial end play exceeds the standard value, replace transverse link assembly.
INSPECTION AFTER INSTALLATION
1.
Check wheel alignment. Refer to
FSU-7, "Wheel Alignment Inspection"
.
2.
Adjust neutral position of steering angle sensor. Refer to
.
Standard
Axial end play
:Refer to
.
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