Hyundai Sonata, EF (EU)

Automatic transmission fluid capacity & service interval

Hyundai Sonata, EF (EU) uses automatic transmission fluid with a capacity of 7,8 liters. Service intervals include changing or checking at 30000 km or 24 months, and changing at 90000 km or 72 months. The data covers 3 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
Sonata 2.7i V6 (2001-2005)
  • Use: Normal
  • Capacity 7,8 liter
  • Check 30000 km/ 24 months
  • Change 90000 km/ 72 months
  • Code: 4/1
Sonata 2.0i 16V (1998-2005)
  • Use: Normal
  • Capacity 7,8 liter
  • Change 30000 km/ 24 months
  • Code: 4/1
Sonata 2.4i 16V (1998-2005)
  • Use: Normal
  • Capacity 7,8 liter
  • Change 30000 km/ 24 months
  • Code: 4/1

Additional Notes

  • All three engine variants in the Hyundai Sonata EF (EU) range share an identical automatic transaxle fluid capacity of 7.8 liters, which represents a total system fill figure rather than a partial drain-and-refill quantity.
  • The 2.0i 16V and 2.4i 16V configurations both carry a fluid change interval of 30,000 km or 24 months under normal use conditions, meaning the distance and time limits are alternatives rather than cumulative requirements.
  • The 2.7i V6, available from 2001-2005, follows a notably different service schedule compared to the four-cylinder variants, separating the inspection interval from the full fluid replacement interval.
  • For the 2.7i V6, a fluid level check is specified at 30,000 km or 24 months under normal use, while the full fluid change is not required until 90,000 km or 72 months under the same conditions.
  • The 90,000 km change interval on the 2.7i V6 is three times longer than the change interval applied to the 2.0i 16V and 2.4i 16V, representing a significant divergence in maintenance scheduling across the engine lineup.
  • The 72-month time-based change interval on the 2.7i V6 translates to a six-year replacement cycle, which is considerably extended relative to the two-year cycle specified for the four-cylinder automatic transaxle fluid.
  • All three configurations are noted specifically as automatic transaxle units, distinguishing the fluid capacity and interval data from any manual transmission or transfer case specifications.

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