NHTSA ID Number: 11028392
Manufacturer Communication Number: 36923
TSB/Document Date: 2026-02-05
Summary
This is a Technical Journal: Coolant Pump Dry Coolant Mix Residue. If the coolant pump has an active leak, a photo must be taken prior to replacement (see example as in attached picture TJ_36923_3). The photo showing the active water pump leak on the vehicle must be saved for the TMA photo return process and provided when requested. Sealing improvements have been made to PNs 32382367, 32441161 and 32382368, but the part numbers are unchanged. To assist with identification of improved parts, a marking has been added to the parts: an "X," as shown in the attached document TJ_36923_1.pdf. If you receive a replacement pump that does not have the "X" marking, please return it and order a replacement
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TSB/Document ID: 36923
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-30
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
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Volvo Car USA LLC
Technical Journal
Technical Journal Title
Ref. No.
Coolant Pump Dry Coolant Mix Residue or Leakage
TJ 36923.8.0
Issuer (Dept.)
Issue Date
Status Date
1/14/26
1/21/26
Technical Service
Car Market
Partner
Function Group
United States and Canada
3 US 7510 Volvo Car USA
2621
Function Description
Page
Coolant pump, complete
Page 1 of 6
Attachment
File Name
File Size
TJ_36923_1.pdf
0.0560 MB
TJ_36923_2.jpg
0.1752 MB
TJ_36923_3.jpeg
0.2971 MB
Rows beginning with * are modified
Note! If using a printed copy of this Technical Journal, first check for the latest online version.
DESCRIPTION:
*Vehicle type updated
If the coolant pump has a small sign of dry green/white coolant mix but no other symptoms (e.g.,
warning message(s), visible coolant leakage under the vehicle, etc.), this is considered OK, do not
replace any parts. An example is provided in attached picture TJ 36923_2.
For active leakage, see additional advice under Service.
CSC Customer Symptom Codes
Code
Description
EZ
Warning lights and chimes/Coolant level indication/no indication
GT
Warning lights and chimes/Engine coolant temperaure indication/no indication
Q8
Engine cooling/Coolant leakage
DTC Diagnostic Trouble Codes
Vehicle Type
Type
Eng
Eng
Desc
Chassis
range
Struc Week
Range
224
L1
BL1KERS
2021-9999
-
202022-999952
225
06
B06KERS
2021-9999
-
202022-999952
227
236
L1
BL1KERS
2023-9999
-
202222-999952
06
B06KERS
2021-9999
-
202022-999952
Sales
Body
Gear
Steer
Model Year
Plant
Technical Journal 36923.8.0
Type
Eng
Eng
Desc
Chassis
range
Struc Week
Range
238
06
B06KERS
2021-9999
-
202022-999952
238
L1
BL1KERS
2021-9999
-
202022-999952
246
246
06
B06KERS
2020-9999
-
202005-999952
L1
BL1KERS
2020-9999
-
201946-999952
246
M1
BM1KERS
2025-9999
-
202417-999952
256
06
B06KERS
2020-9999
-
202005-999952
256
L1
BL1KERS
2022-9999
-
201946-999952
256
M1
BM1KERS
2025-9999
-
202407-999952
536
K9
BK9KERS
2021-9999
-
202020-999952
536
L1
BL1KERS
2021-9999
-
202020-999952
Sales
Body
Gear
Steer
Model Year
Plant
SERVICE:
If the coolant pump has an active leak, a photo must be taken prior to replacement (see example as
in attached picture TJ_36923_3). The photo showing the active water pump leak on the vehicle
must be saved for the TMA photo return process and provided when requested.
Sealing improvements have been made to PNs 32382367, 32441161 and 32382368, but the part
numbers are unchanged. To assist with identification of improved parts, a marking has been added
to the parts: an “X,” as shown in the attached document TJ_36923_1.pdf.
If you receive a replacement pump that does not have the “X” marking, please return it and order a
replacement.
NOTE: A Vehicle Report is NOT required for authorization to replace the coolant pump.
Warranty claim info:
The submitted claim text must have the TJ number in the claim text as required by WPPM policy
206.010 Condition Repair Text. Use applicable CSC.
Concerned Part No: 32252604; 32252284; 32382367; 32382368; 32441161.
PN = Part Number
TMA = Technical Material Analysis
WPPM = Warranty Policy and Procedures Manual
Page 2 of 6
2026-01-21
Technical Journal 36923.8.0
VEHICLE REPORT:
No. Only submit a Vehicle Report if the vehicle falls outside of the structure week range listed above
or of the leaking pump has the “X” marking as described under Service. Use concern area “Vehicle
Report” and sub concern area “Support not needed”, use function group 2621.
A Vehicle Report is NOT required for authorization to replace the coolant pump.
To view TJ attachments continue to next page. This TJ has three attachments.
2026-01-21
Page 3 of 6
Technical Journal 36923.8.0
TJ 36923
Page 4 of 6
2026-01-21
Technical Journal 36923.8.0
2026-01-21
Page 5 of 6
Technical Journal 36923.8.0
Page 6 of 6
2026-01-21
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