NHTSA ID Number: 11016701
Manufacturer Communication Number: IK2300021
TSB/Document Date: 2025-04-07
Summary
3/25/2025 - Updated service part numbers and addressed typos
Countries:
CANADA, UNITED STATES Document ID: IK2300021
Availability:
ISIS, Bus ISIS, NotSIR
Revision:
3
Major System:
Created:
10/5/2023
Current Language: English
Last Modified: 3/25/2025
Other Languages: NONE
Author:
Viewed:
Josh Bowman
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Title : Servicing Air Conditioning Systems on Electric Vehicles
Applies To : IC Bus® Electric CE Series, International
® eMV™ Series
CHANGE LOG
Please refer to the change log text box below for recent changes to this article:
3/25/2025 - Updated service part numbers and addressed typos
11/22/2024 - Updated tool information to reflect latest changes. Added eMV specfications w/addition of PVE oil notes.
11/03/2023 - Initial Article Release
DESCRIPTION
This document will guide the user through information required to know before servicing air conditioning systems on an electric vehicle.
SYMPTOMS
Diagnostic Trouble Codes & Dashboard Indicator Lights:
DTC/Light
Description
N/A
N/A
Customer Observations or Concerns:
During any service event of the A/C system
SPECIAL TOOLS / SOFTWARE
Tool Description
Tool Number
Comments
Instructions
Hybrid R134a Refrigerant
Handling System
ACX2180H
or equivalent: SAE J2788
and J2788H Compliant
See machines manual
Oil Injector R134a 20z
FJC2732
or equivalent
FJC2732
or equivalent
FJC2732
or equivalent
SERVICE PARTS INFORMATION
Kit Description
Part Number
Quantity
Notes
Required
N/A
N/A
N/A
N/A
Notes
SAE J2788 compliant machines do
not have oil injection to avoid crosscontamination of oils. Hose Flushing
Capability
Use ONLY on Electric Vehicles POE Oils, refer to vehicle label
Use ONLY on Electric Vehicles PVE Oils, refer to vehicle label
Use ONLY on Internal Combustion
Engines (ICE) Vehicles - PAG Oils
Recommended Guidelines when servicing High-Voltage A/C Systems
To prevent personal injury or death, DO NOT attempt to service the High Voltage A/C
system without proper training.
HV compressors require unique A/C refrigerant compressor oil that is non-conductive.
The specific type of oil is identified by the vehicle maker. All non-conductive POE oils are
not the same.
HV compressors require unique A/C refrigerant compressor oil that is non-conductive.
The specific type of oil is identified by the vehicle maker. All non-conductive PVE oils are
not the same.
As little as 1% standard PAG oil can reduce the dielectric properties of the approved POE
oils and damage the system.
POE and PVE oils allow for 5% cross contamination
Many of the A/C system parts will require replacement if the system is over contaminated.
1. Use only SAE J2788 compliant machines and follow machine flushing procedures as per the A/C machine manufacturer BEFORE servicing an electric
vehicle
2. Where possible use a dedicated A/C machine for all EV A/C systems that use POE/PVE oil to prevent cross contamination
3. It is best practice to empty the oil recovery bottle to understand how much oil is lost within the system during the recovery process for replacement
purposes
4. ALWAYS use a dedicated oil injector for each type of oil to avoid contamination. Refer to the accessories listed above as an example for PAG, POE and
PVE oil injectors
5. Refer to the proper sevice manual for recovery, evacuation and charge procedures
IC Bus® Electric CE Series System Specifications
Note: Compressor pre-charge oil capacity plus additional oil fill = total oil fill capacity
TRANS-AIR A/C SPECIFICATIONS | FEATURE 048HEP | PRODUCTION 07/25/2023 TO PRESENT
VEHICLE MODEL
REFRIGERANT CHARGE
R134a (WEIR134A)
FRONT (LB)
REAR (LB)
OIL FILL (additional)
POE 68
FRONT (OZ)
REAR (OZ)
Compressor PN
charged w/ 7
Short Wheel Base (SWB), Standard A/C System
4.1
3.1
1.6
2.8
Short Wheel Base (SWB), High Performance A/C System
4.5
3
2.31
2.75
Long Wheel Base (LWB), Standard A/C System
4
4.3
1.6
3.2
Long Wheel Base (LWB), High Performance A/C System
4.4
4.3
2.3
3.2
PRO-AIR MODINE A/C SPECIFICATIONS | FEATURE 048CXZ | PRODUCTION 11/14/22 - 07/25/23
REFRIGERANT CHARGE
R134a (WEIR134A)
VEHICLE MODEL
Short Wheel Base (SWB), Standard A/C System
Short Wheel Base (SWB), High Performance A/C System
Long Wheel Base (LWB), Standard A/C System
Long Wheel Base (LWB), High Performance A/C System
OIL FILL (additional)
POE 68
FRONT (LB)
REAR (LB)
FRONT (OZ)
REAR (OZ)
6
6.2
1.6
2.8
6.5
6.2
2.31
2.75
6
6.5
1.6
3.2
6.5
6.5
2.3
3.2
Compressor PN
charged w/ 7
PRO-AIR EMERSON A/C SPECIFICATIONS | FEATURE 048CXZ | PRODUCTION 6/07/2021 - 10/18/2022
REFRIGERANT CHARGE
R134a (WEIR134A)
VEHICLE MODEL
Short Wheel Base (SWB), Standard A/C System
Short Wheel Base (SWB), High Performance A/C System
Long Wheel Base (LWB), Standard A/C System
Long Wheel Base (LWB), High Performance A/C System
OIL FILL
POE 32
FRONT (LB)
REAR (LB)
FRONT (OZ)
REAR (OZ)
6
6.1
No Additional
No Additional
6.5
6.1
No Additional
No Additional
6
7.1
No Additional
No Additional
6.5
7.1
No Additional
No Additional
International® eMV™ Series System Specifications
MODINE A/C SPECIFICATIONS | FEATURE 0016BAM | PRODUCTION 12/05/2023 - PRESENT
Compressor PN
charged w/
VEHICLE MODEL
REFRIGERANT CHARGE
R134a (WEIR134A)
OIL FILL
POE 68
2lbs (32oz)
No Additional
International eMV series w/horizontal compressor under front end module
Compressor PN 43
charged w/ 7.4
EMERSON A/C SPECIFICATIONS | FEATURE 0016BAM | PRODUCTION 12/08/2020 - 12/04/2023
VEHICLE MODEL
REFRIGERANT CHARGE
R134a (WEIR134A)
OIL FILL
POE 32
2lbs (32oz)
No Additional
International eMV series w/vertical compressor on passenger side front
WARRANTY INFORMATION
Warranty Claim Coding:
Refer to the Warranty Coding Manual for Group and Noun Codes.
Standard Repair TimeS:
Refer to the SRT Manual for Repair Times
OTHER RESOURCES
Master Service Information Site
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Copyright © 2025 Navistar, Inc.
Compressor PN 25
charged w/ 44
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TSB/Document ID: IK2300021
Replacement Service Bulletin Number:
MFR Communication Date: 2025-03-25
MFR Internal Campaign ID/Software Version: IK2300021
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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