NHTSA ID Number: 11020440
Manufacturer Communication Number: 37345
TSB/Document Date: 2025-07-08
Summary
This is a Technical Journal: AC System Intermittent Knocking Noise. If the symptom is confirmed, proceed with adding a rubber sleeve on isolated low pressure line (also, connect low pressure line and high pressure line with a cable tie) according to the attachement.
Volvo
Car USA LLC
Technical Journal
Technical Journal Title
Ref. No.
AC System Intermittent Knocking Noise
TJ 37345.1.0
Issuer (Dept.)
Issue Date
Status Date
4/3/25
4/10/25
Technical Service
Car Market
Partner
Function Group
United States and Canada
3 US 7510 Volvo Car USA
8720
Function Description
Page
Air distribution
Page 1 of 11
Attachment
File Name
File Size
TJI-530765-1_1_1_en-US 86e8f0.pdf
2.7987 MB
DESCRIPTION:
If the customer complains about knocking noise from the AC system (this symptom can be heard or
felt under the driver’s front carpet), please follow advice under service.
CSC Customer Symptom Codes
Code
Description
D5
Climate control system/Unusual noise
DTC Diagnostic Trouble Codes
Vehicle Type
Type
Eng
Eng
Desc
Sales
Body
256
Gear
Steer
Model Year
2016-9999
Plant
Chassis range
Struc Week
Range
-
201505-999952
SERVICE:
If the symptom is confirmed, proceed with adding a rubber sleeve on isolated low pressure line
(also, connect low pressure line and high pressure line with a cable tie) according to the attachment.
Warranty claim info:
To get a warranty claim accepted for a job described in this TJ, use the corresponding VST OP
number stated in this TJ.
Note that the TJ number must be stated in the repair order text.
VST Operation Number
VST Operation Number
Description
98784-2
A/C System knocking noise acc to TJ
Technical Journal 37345.1.0
VEHICLE REPORT:
Yes, please submit a Vehicle Report if the service solution described in this TJ has no effect. Use
concern area “Vehicle Report” and sub concern area “Support not needed”, use function group
8720.
To view TJ attachment continue to next page. This TJ has one attachment.
Page 2 of 11
2025-04-10
Volvo Car Customer Service
Title
The air conditioning (A/C) system
Action
Issue
1
TJ Instruction VCC-530765-1
Product fix
Date
2025-03
Model year Model
2022, 2023, XC90 (16-)
2024, 2025
Materials
Strip clamp
Sleeve
Designation
Interior trim remover
Interior trim remover
Tape measure
Carpet knife
Cutting pliers
Reason
First issue
Affected vehicles
Engine
B4204T53, T56, T57
Qty.
1.0
1.0
Partner group
America
China
International
Materials
Part No.
983750
31201519
Equipment
Part No.
Notes
Page
1(9)
Operation number:
98784-2
TJ Instruction VCC-530765-1
Page 2 ( 9 )
Removal
Note! Removal steps in this procedure may
contain installation details.
Color symbols
Note! This colour chart displays (in colour
print and electronic version) the importance
of the different colours used in the images
of the method steps.
1 . Used for focused component, the
component with which you will do
something.
2 . Used as extra colors when you need to show
or differentiate additional parts.
3 . Used for attachments that are to be
removed/installed. May be screws, clips,
connectors, etc.
4 . Used when the component is not fully
removed from the vehicle but only hung to
the side.
5 . Used for standard tools and special tools.
6 . Used as background color for vehicle
components.
Note! Orientation view
TJ Instruction VCC-530765-1
Page 3 ( 9 )
Remove the following components:
• accelerator pedal , refer to:
Removal, replacement and
installation
2 - Engine with mountings and
equipment
27 - Engine control
271 - gas pedal control
• left side front sill moulding , refer to:
Removal, replacement and
installation
8 - Body and interior
85 - Interior
855 - other upholstery
Remove the panel.
Use: Interior trim remover
TJ Instruction VCC-530765-1
Page 4 ( 9 )
Remove the marked part.
Use: Interior trim remover
Remove the marked part.
TJ Instruction VCC-530765-1
Page 5 ( 9 )
Loosen the marked detail.
Fold the carpet aside.
Remove the marked part.
Adjustment
Caution! Cut carefully to avoid unintentional
damage or personal injury.
Caution! Make sure not to damage wiring,
hoses or other components.
TJ Instruction VCC-530765-1
Page 6 ( 9 )
Make a cut in the insulation.
Fold the insulation aside.
Use: Tape measure
Use: Carpet knife
Note! Orientation view
TJ Instruction VCC-530765-1
Page 7 ( 9 )
Install the marked component.
TJ Instruction VCC-530765-1
Page 8 ( 9 )
Install the marked component.
Use: Strip clamp , 983750
Use: Cutting pliers
Caution! Make sure that the components
are positioned correctly.
TJ Instruction VCC-530765-1
Page 9 ( 9 )
Installation
Reinstall the insulation mat.
Apply tape.
To install, reverse the removal procedure.
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TSB/Document ID: 37345
Replacement Service Bulletin Number:
MFR Communication Date: 2025-04-15
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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