TSB-23-55-006

SUBJECT:
A/C COMPRESSOR OIL REFILL PROCEDURE –
SERVICE MANUAL REVISION
No:
TSB-23-55-006
DATE:
October 2023
MODEL:
See below
CIRCULATE TO:
[ ] GENERAL MANAGER
[ X ] PARTS MANAGER
[ X ] TECHNICIAN
[ X ] SERVICE ADVISOR
[ X ] SERVICE MANAGER
[ X ] WARRANTY PROCESSOR
[ ] SALES MANAGER
PURPOSE
This TSB provides revisions to the procedure for the oil refill amount of the A/C compressor
section in the applicable Service Manual.
AFFECTED VEHICLES
2018-2020 Outlander Plug-in Hybrid
AFFECTED SERVICE MANUAL
• 2018-2020 Outlander Plug-in Hybrid Service Manual
PROCEDURE
Please use the chart below to replace the pages found in the affected Service Manual:
2018-2020 Outlander Plug-in Hybrid: Group 55, Heather, Air Conditioning and Ventilation, OnVehicle Service
Copyright 2023, Mitsubishi Motors North America, Inc.
The information contained in this bulletin is subject to change. For the latest version of this document, go to the
Mitsubishi Dealer Link, MEDIC, or the Mitsubishi Service Information website (www.mitsubishitechinfo.com).
10/12/2023
1 of 4
(5002/MSB20EXML55501)
55-128
HEATER, AIR CONDITIONING AND VENTILATION
Attached sheet 4
ON-VEHICLE SERVICE
REFRIGERANT LEVEL CHECK, DRAINING AND CHARGING
CAUTION
 When refrigerant is charged, use the special
tools for the EV24AN5 compressor to fill up
the refrigerant, because it is different from the
normal compressor oil. (If the normal compressor oil is mixed, damage may be resulted
in.)
 For the compressor oil and installation oil for
the piping O-ring, use the oil MA68EV or
Ze-GLES RB68 dedicated for the A/C compressor EV24AN5. If an oil other then the
MA68EV or Ze-GLES RB68 is used, even if it
is only a small amount, the electric insulation
is considerably deteriorated and a leakage
may occur.
 Never charge the refrigerant excessively, or
the A/C system may be damaged.
 Always keep away thermal ignition sources,
electrical sparks or flame impact from the
refrigerant. In the presence of flame, refrigerant forms a poisonous gas. Keep the area well
ventilated.
 Recover the refrigerant according to the specified procedure. Never release it into the
atmosphere.
NOTE: When you have evacuated the system before
filling with refrigerant, "No. B103A: Refrigerant pressure sensor system (short to power supply)" and
"No. B103B: Refrigerant pressure sensor system
(open or short to ground) will be set. On completion,
erase these diagnostic trouble codes.
REFILLING OF OIL IN THE A/C SYSTEM
Too little oil will provide inadequate compressor lubrication and cause a compressor failure. Too much oil
will increase discharge air temperature.
When a compressor is installed at the factory, it contains 70 mL (2.4 fl.oz) of compressor oil. While the
A/C system is in operation, the oil is carried through
the entire system by the refrigerant. Some of this oil
will be trapped and retained in various parts of the
system.
M1559200100408
Drain the refrigerant by using MOR405JH-type flon
recovery equipment (part number: MZ204413), and
fill by the specified amount.
M1552020000389
When the following system components are
changed, it is necessary to add oil to the system to
replace the oil being removed with the component.
Compressor oil: MA68EV or Ze-GLES RB68
Quantity
Evaporator: 25 mL (0.8 fl.oz) 
Condenser: 15 mL (0.5 fl.oz)
Each piping: 5 mL (0.2 fl.oz)

Evaporator in the heater: 25 mL (0.8 fl.oz)
Evaporator in the main drive lithium-ion battery:
25 mL (0.8 fl.oz)
TSB Revision
10/12/2023
2 of 4
(5002/MSB20EXML55501)
Attached sheet 5
55-136
HEATER, AIR CONDITIONING AND VENTILATION
ON-VEHICLE SERVICE
REFILLING OF OIL IN THE A/C SYSTEM
Too little oil will provide inadequate compressor lubrication and cause a compressor failure. Too much oil
will increase discharge air temperature.
When a compressor is installed at the factory, it contains 70 mL (2.4 fl.oz) of compressor oil. While the
A/C system is in operation, the oil is carried through
the entire system by the refrigerant. Some of this oil
will be trapped and retained in various parts of the
system.
M1552020000389
When the following system components are
changed, it is necessary to add oil to the system to
replace the oil being removed with the component.
Compressor oil: MA68EV or Ze-GLES RB68
Quantity
Evaporator: 25 mL (0.8 fl.oz) 
Condenser: 15 mL (0.5 fl.oz)
Each piping: 5 mL (0.2 fl.oz)

Evaporator in the heater: 25 mL (0.8 fl.oz)
Evaporator in the main drive lithium-ion battery:
25 mL (0.8 fl.oz)
TSB Revision
10/12/2023
3 of 4
(5002/MSB20EXML55501)
Attached sheet 6
HEATER, AIR CONDITIONING AND VENTILATION
ON-VEHICLE SERVICE
REFRIGERANT LEVEL CHECK, DRAINING AND CHARGING





CAUTION
When refrigerant is charged, use the special
tools for the EV24AN5 compressor to fill up
the refrigerant, because it is different from the
normal compressor oil. (If the normal compressor oil is mixed, damage may be resulted
in.)
For the compressor oil and installation oil for
the piping O-ring, use the oil MA68EV or
Ze-GLES RB68 dedicated for the A/C compressor EV24AN5. If an oil other then the
MA68EV or Ze-GLES RB68 is used, even if it
is only a small amount, the electric insulation
is considerably deteriorated and a leakage
may occur.
Never charge the refrigerant excessively, or
the A/C system may be damaged.
Always keep away thermal ignition sources,
electrical sparks or flame impact from the
refrigerant. In the presence of flame, refrigerant forms a poisonous gas. Keep the area well
ventilated.
Recover the refrigerant according to the specified procedure. Never release it into the
atmosphere.
M1559200100408
NOTE: When you have evacuated the system before
filling with refrigerant, "No. B103A: Refrigerant pressure sensor system (short to power supply)" and
"No. B103B: Refrigerant pressure sensor system
(open or short to ground) will be set. On completion,
erase these diagnostic trouble codes.
Drain the refrigerant by using MOR405JH-type flon
recovery equipment (part number: MZ204413), and
fill by the specified amount.
REFILLING OF OIL IN THE A/C SYSTEM
Too little oil will provide inadequate compressor lubrication and cause a compressor failure. Too much oil
will increase discharge air temperature.
When a compressor is installed at the factory, it contains 70 mL (2.4 fl.oz) of compressor oil. While the
A/C system is in operation, the oil is carried through
the entire system by the refrigerant. Some of this oil
will be trapped and retained in various parts of the
system.
55-143
M1552020000389
When the following system components are
changed, it is necessary to add oil to the system to
replace the oil being removed with the component.
Compressor oil: MA68EV or Ze-GLES RB68
Quantity
Evaporator: 25 mL (0.8 fl.oz) 
Condenser: 15 mL (0.5 fl.oz)
Each piping: 5 mL (0.2 fl.oz)
Evaporator in the heater: 25 mL (0.8 fl.oz)
Evaporator in the main drive lithium-ion battery:
25 mL (0.8 fl.oz)

TSB Revision
10/12/2023
4 of 4
(5002/MSB20EXML55501)