Hyundai 18-AT-008 User Manual

Circulate To: Service Manager, Warranty Manager, Service Advisors, Technicians, Fleet Repair
Technical Service Bulletin
GROUP
NUMBER
AUTOMATIC
TRANSMISSION
18-AT-008
DATE
MODEL
MAY, 2018
SEE APPLICABLE
MODELS BELOW
AUTOMATIC TRANSAXLE ATF COOLER FLUSHING
This TSB supersedes TSB 12-AT-019 to include additional vehicles.
DESCRIPTION:
Whenever an automatic transaxle is replaced, the ATF cooler must be flushed to remove
contaminants such as metal particles and clutch material. Failure to flush or improper flushing of the
ATF cooler may result in severe damage to the replacement transaxle.
This TSB applies to transmissions with the ATF cooler in the radiator or the ATF warmer/cooler
attached to the transmission. This TSB does not apply to dual-clutch transmissions.
YF HEV and LF HEV remanufactured transmissions have a new ATF warmer/cooler installed and do
not need to be flushed.
Applicable Vehicles:
2012~17
2018~
2011
2012~17
2011~16
2017~
2013~14
2013~17
2018~
2018~
2007~12
2013~18
2013~
2011~14
2015~
2010~15
2013~15
2019~
2011~16
2009~14
2015~16
2010~16
Accent (RB)
Accent (HC)
Azera (TG)
Azera (HG)
Elantra (MD/UD)
Elantra (AD/ADa) 2.0L
Elantra Coupe (JK)
Elantra GT (GD)
Elantra GT (PD) 2.0L
Kona (OS) 2.0L
Santa Fe (CM)
Santa Fe Sport (AN)
Santa Fe (NC)
Sonata (YF)
Sonata (LF) 2.0T/2.4L
Tucson (LM)
Veloster Turbo (FS)
Veloster (JS) 2.0L
Equus (VI) 4.6L/5.0L
Genesis Sedan (BH) 3.8L/4.6L/5.0L
Genesis Sedan (DH) 3.8L/5.0L
Genesis Coupe (BK) 2.0T/3.8L

Hyundai 18-AT-008 Specifications

General

Brand	Hyundai
Model	18-AT-008
Category	Automobile Accessories
Language	English

Summary

Automatic Transaxle ATF Cooler Flushing

Description of ATF Cooler Flushing

Explains the necessity of flushing the ATF cooler after transaxle replacement to prevent damage from contaminants like metal particles and clutch material.

Applicable Vehicles for ATF Cooler Flushing

Lists specific Hyundai models and model years that require the ATF cooler flushing procedure, excluding dual-clutch transmissions and certain HEV models.

Parts Information for Cooler Flushing

Details the part number for the transmission cooler flush product and notes that labor time is included in transaxle replacement.

Notice on ATF Cooler Flushing Requirement

Mandates that the ATF cooler, whether in the radiator or as a warmer/cooler, must be flushed after transmission replacement.

Safety Precautions for ATF Cooler Flushing

Outlines essential safety measures, including wearing protective gear, ensuring ventilation, and avoiding contact with skin and eyes.

Service Procedure for ATF Cooler Flushing

Step 1: Hose Identification and Disconnection

Mark ATF cooler inlet and outlet hoses before disconnecting them from the oil cooler tubes.

Step 2: Initial Flush Procedure

Insert aerosol nozzle into one hose, secure, and discharge flush into a waste container for 15-20 seconds until clear.

Step 3: Reverse Flush Procedure

Reverse hoses and flush in the other direction until clear liquid flows, using the entire contents of the aerosol can.

Step 4: Expel Remaining Fluid

Turn the flush can upside down to blow out any remaining liquid from the cooler and collect/dispose of excess fluid properly.

Step 5: Reconnect Cooler Hoses

Reconnect the cooler hoses to the transaxle and secure them with clamps.