Hyundai Equus: Fluid Repair procedures - Hydraulic System - Automatic Transmission System (SBC) - Hyundai Equus VI 2009-2024 Service ManualHyundai Equus: Fluid Repair procedures

Service Adjustment Procedure
Oil level Check
A check of ATF level is not normally required during scheduled services. If an oil leak is found, perform the oil level check procedure after repairs are completed.
When checking the oil level, be careful not to enter dust, foreign matters, etc. from fill hole.
Start the engine. (Dont step on brake and accelerator simultaneously).
Confirm that the temperature of the A/T oil temperature sensor is 50~60C(122~140F) with the GDS.
Shift the shift lever slowly from "P" to"D" to "P" at idle. Repeat one time.
Shift the select lever to "N".
Pause in each gear position more than 2 seconds.
Lift the vehicle, then remove the oil level check plug (A) from the valve body cover.
At this time, the vehicle must be at a level state.

If there is no oil drain or the amount of oil drain is very low (within 20cc).
Add ATF SP-IV-RR 650cc to the ATF injection hole (A).
If oil start to overflow from the oil level check plug, you must stop adding oil.

If the oil flows out of the overflow plug in thin steady stream, the oil level is correct.
Then finish the procedure and tighten the oil level check plug.
Oil level check (excess or shortage) method
Excess: Drain quantity exceeds 500cc per mininute.(Let oil flow until oil stream becoms thin)
Shortage: If there is no drain after adding 650cc of ATF.(Add more ATF oil until oil starts to drain)
If there is no damage at the automatic transmission and the oil cooler, the oil cooler hose, transmission case, valve body tightening state are normal, ATF must drip out after performing above 1 to 6 procedures. After performing above 1 to 6 procedures, if the oil doesnt drip out, inspect the automatic transmission assembly.
Replace the gasket of the oil level plug and use new one whenever loosening the oil level check plug.

Oil level check plug tightening torque:
22.6 ~ 24.5 N.m (2.3 ~ 2.5 kgf.m, 16.6 ~ 18.1 lb-ft)

After ATF level check or exchange, be sure to remove residual ATF on transmission case.
(be especially sure to remove residual ATF between automatice transmission case and oil pan)
Put down the vehicle with the lift.
ATF of 8 speed automatic transmission doesnt need to be replaced in normal usage. If the vehicle is used severely in business or personal use, replace ATF every 60,000 miles.
Severe usage is defined as
Driving in rough road (Bumpy, Gravel, Snowy, Unpaved road, etc)
Driving in mountain road, ascent/descent
Repetition of short distance driving
More than 50% operation in heavy city traffic during hot weather above 30C(89.6F) .
Police, Taxi, Commercial type operation or trailer towing, etc
Remove the drain plug (A) and reinstall the drain plug after draining ATF totally.

Drain plug tightening torque:
22.6 ~ 24.5 N.m (2.3 ~ 2.5 kgf.m, 16.6 ~ 18.1 lb-ft)

Replace the drain plug gasket with a new one.
Fill the oil about 7.0 liters through oil injection hole.
Check the oil level.
(Refer to "Hydraulic system (Fluid)" in this group)
    Fluid Components and Components Location
    Components Location 1. Oil injection hole2. Oil level check plug3. Oil drain piug ...

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