Hyundai Sonata LF Quiz
DCT (Dual Clutch Transmission) System

Transaxle Oil Repair Procedures

In this manual: DCT (Dual Clutch Transmission) System
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
10steps
~60min
3/5difficulty
030609012015078.558N·mlb·ft
Tightening torque found on this page
Done 0 of 10

Inspection
  • In general, the transmission fluid does not require maintenance or replacement. However, it must be inspected and topped up every 4 years or 40,000 miles.
  1. Park the vehicle on a level surface and turn off the engine.
  2. Remove the under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")
  3. Remove the fill plug (A) and check the fluid condition and level.
    • The fluid level should be at the level of the filler hole. If not, add oil until it overflows.
  4. Install the fill plug bolt (A) with a new gasket.

    Tightening torque: 58.9 ~ 78 N·m

  5. Install the under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

Replacement
In general, the fluid in the dual clutch transmission (DCT) does not need to be changed under normal driving conditions. However, under severe driving conditions, it must be changed every 80,000 miles. Severe driving conditions include:
  • Frequent driving on rough roads (bumpy roads, sand or gravel roads, snow-covered roads and unpaved roads)
  • Frequent driving on mountain trails and slopes
  • If the vehicle is used as a police car, taxi, for commercial purposes or for towing.
  • Frequent driving at high speeds (over 170 km/h)
  • If 50% or more of the total mileage is driven at temperatures above 32 °C and in heavy traffic
  1. Remove the under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")
  2. Remove the drain plug (A) and drain all the fluid. Then install the drain plug with a new gasket.

    Tightening torque: 58.9 ~ 78 N·m

  3. Add new fluid through the fill hole (A) until it is just below the level of the fill plug hole. Standard fluid: API Service GL-4, SAE 70W. Recommended fluid (SHELL: SPIRAX S6 GHME 70W DCTF, SK: HK DCTF 70W, GS CALTEX: GS DCTF HD 70W). Fluid capacity: 1.9 L (0.50 US gal, 2.01 US qt, 1.67 Imp qt)
  4. Install the fill plug bolt (A) with a new gasket.

    Tightening torque: 58.9 ~ 78 N·m

  5. Install the under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

Test yourself

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