NHTSA ID Number: 10182151
Manufacturer Communication Number: JLRTB02060NAS1
TSB/Document Date: 2020-11-06
Summary
A knocking noise from the front suspension when driving over uneven road surfaces orspeed bumps, at speeds of up to 40 km/h (25 mph) may be evident.
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TSB/Document ID: JLRTB02060NAS1
Replacement Service Bulletin Number:
MFR Communication Date: 2020-10-07
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SUSPENSION
MFR Component System:
MFR Component Subsystem:
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10/7/2020
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JLRTB02060NAS1
TECHNICAL BULLETIN
07 OCT 2020
© Jaguar
Land Rover North America, LLC
NOTE: The information in Technical Bulletins is intended for use by trained, professional
Technicians with the knowledge, tools, and equipment required to do the job properly and
safely. It informs these Technicians of conditions that may occur on some vehicles, or
provides information that could assist in proper vehicle service. The procedures should not
be performed by 'do-it-yourselfers'. If you are not a Retailer, do not assume that a condition
described affects your vehicle. Contact an authorized Land Rover service facility to
determine whether this bulletin applies to a specific vehicle.
INFORMATION
SECTION:
204-01
SUBJECT/CONCERN:
Knocking Noise From Front Suspension Lower Control Arms
AFFECTED VEHICLE RANGE:
MODEL:
MODEL YEAR:
VIN:
ASSEMBLY PLANT:
New Range Rover Evoque (LZ)
2020 Onwards
000120 Onwards
Halewood
Discovery Sport (LC)
2020 Onwards
830147 Onwards
Halewood
MARKETS:
NORTH AMERICA
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CONDITION SUMMARY:
SITUATION:
A knocking noise from the front suspension when driving over uneven road surfaces or
speed bumps, at speeds of up to 40 km/h (25 mph) may be evident.
CAUSE:
The hydrabush fluid circulating within the front lower control arm rear hydrabush can be
heard as a knocking noise from within the passenger compartment. This has no effect on
the operation of the suspension system.
ACTION:
Follow the service instructions below.
PARTS:
NOTE:
An allowance equivalent to $13.00 has been allocated to locally source a 100 ml
syringe and a 12 inch length of tube with a 4 mm outside diameter (see the 'Service
Information' section for an example).
PART NUMBER
ZZZ001
DESCRIPTION
Syringe and tube
QUANTITY
£10.00
WARRANTY:
NOTES:
Repair procedures are under constant review, and therefore times are subject to
change; those quoted here must be taken as guidance only. Use TOPIx to obtain
the latest repair time.
The JLR claims submission system requires the use of causal part numbers. Labor
only claims must show the causal part number with a quantity of zero.
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SRO
TIME
(HOURS)
CONDITION
CODE
CAUSAL
PART
99.01.33
1.5
42
LR114248/9
DESCRIPTION
JLRTB - Front lower control arm hydrabush
modification - Pair - With wheel balance
NOTE:
Normal Warranty procedures apply.
SERVICE INFORMATION:
1.
The illustration shows an example of the 100 ml syringe and 4 mm outside
diameter tube that should be locally sourced.
SERVICE INSTRUCTION - WHEEL BALANCE:
1.
Raise and support the vehicle on a suitable 2 post li (see TOPIx Workshop Manual
section 100-02: Jacking and Li ing - Description and Operation - Jacking and
Li ing).
2.
Remove all 4 road wheel and tire assemblies (see TOPIx Workshop Manual section
204-04: Wheels and Tires - Removal and Installation - Wheel and Tire).
3.
Balance all 4 wheel and tire assemblies.
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4.
Install the 2 rear road wheel and tire assemblies (see TOPIx Workshop Manual
section 204-04: Wheels and Tires - Removal and Installation - Wheel and Tire).
5.
Continue to 'Service Instruction - Modification'.
SERVICE INSTRUCTION - MODIFICATION:
WARNING:
You must wear protective gloves and eye protection when completing this service
instruction. Failure to follow this instruction may result in personal injury.
NOTES:
This procedure contains some variation in the illustrations depending on the
vehicle specification, but the essential information is always correct.
This procedure contains illustrations showing certain components removed to
provide extra clarity.
It is important to diagnose the customer concern before completing this technical
bulletin.
1.
Remove the engine undershield (see TOPIx Workshop Manual section 501-02:
Front End Body Panels - Removal and Installation - Engine Undershield).
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2.
CAUTION:
Take extra care not to damage the component.
NOTE:
Repeat this step for the front le wheel arch liner.
Reposition the front right wheel arch liner.
Remove the 2 screws.
Remove the 2 fasteners.
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3.
CAUTION:
Take extra care not to damage the component.
NOTE:
Repeat this step for the le body undershield.
Lower the front section of the right body undershield.
Remove the 2 nuts.
Remove the 2 bolts.
Remove the 2 fasteners.
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4.
NOTE:
The illustration shows the fill port at the bottom of the rear hydrabush. On
some front lower arm rear hydrabushes, the fill port may be at the top of
the hydrabush.
Locate the fill port on the rear hydrabush of the front right lower control arm, as
shown in the illustration.
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5.
CAUTIONS:
Do not drill deeper than 23 mm, failure to follow this instruction will
result in damage to the component.
Be prepared to collect escaping fluid.
Drill a hole through the rear hydrabush fill port using a 6 mm diameter drill bit, to a
depth of no more than 23 mm.
If the fill port is at the top of the hydrabush, turn the steering to full right
lock to allow access.
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6.
CAUTIONS:
Do not drill deeper than 3 mm, failure to follow this instruction will result
in damage to the component.
Be prepared to collect escaping fluid.
NOTE:
The hole must be drilled as low as possible.
Drill a hole through the back of the hydrabush casing using a 3 mm diameter drill
bit, to a depth of no more than 3 mm, this will assist with the removal of the
hydrabush fluid in the next step.
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7.
Using a syringe and a length of tube, remove as much hydrabush fluid as possible
through the hole created in the fill port. A minimum of 50 ml of hydrabush fluid
must be removed before continuing to step 8.
If you cannot remove a minimum of 50 ml of hydrabush fluid a Technical
Assistance (TA) must be raised, using the technical bulletin number
'JLRTB02060' as a reference.
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8.
CAUTION:
Be prepared to collect escaping fluid.
Flush the hydrabush using a suitable aerosol degreaser until the fluid is clear.
9.
Using a syringe and a length of tube, remove any excess degreaser/hydrabush fluid
through the hole created in the fill port.
10.
Repeat steps 4 to 9 for the rear hydrabush of the front le lower control arm.
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11.
Install the 2 front road wheel and tire assemblies (see TOPIx Workshop Manual
section 204-04: Wheels and Tires - Removal and Installation - Wheel and Tire).
12.
Repeatedly lower the vehicle to the floor and raise it again to articulate the front
lower control arms. (see TOPIx Workshop Manual section 100-02: Jacking and
Li ing - Description and Operation - Jacking and Li ing).
This steps makes sure all of the hydrabush fluid has been removed from
the hydrabush.
13.
NOTE:
Make sure there is no evidence of hydrabush fluid under the vehicle before
continuing to step 14.
Clean any residual hydrabush fluid from under the vehicle.
14.
NOTE:
Repeat this step for the le body undershield.
Install the right body undershield in the original position.
Install and tighten the 2 nuts.
Torque: 6 Nm
Install and tighten the 2 bolts.
Torque: 6 Nm
Install the 2 fasteners.
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15.
NOTE:
Repeat this step for the front le wheel arch liner.
Install front right wheel arch liner in the original position.
Install and tighten the 2 screws.
Install the 2 fasteners.
16.
Install the engine undershield (see TOPIx Workshop Manual section 501-02: Front
End Body Panels - Removal and Installation - Engine Undershield).
17.
Lower the vehicle (see TOPIx Workshop Manual section 100-02: Jacking and
Li ing - Description and Operation - Jacking and Li ing).
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