Does the Oshan X7s DCT transmission have a common issue with leaking from the oil pan o r drain plug?

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Does the Oshan X7s DCT transmission have a common issue with leaking from the oil pan o r drain plug?

I recently had the transmission fluid checked on my Hyundai Oshan X7, and a few days later, I noticed leaking underneath. Ive heard that drain plugs o r the pan gasket can sometimes be improperly sealed after fluid changes. Is this a known issue with the DCT in the Oshan X7, and how can I verify if its been installed correctly?

Gari Specialist asked on 12 Jul 2025 13:51:37 pm

1 Answer

37 views |

Gari Master - on 12 Jul 2025 13:53:57 pm

This isnt a widely reported issue, but improper tightening o r sealing of the oil drain plug o r pan after a fluid change can cause leaks—especially if non-experts service the car. Some owners in Pakistan have reported leakage shortly after a fluid change.

Why it happens:

Gasket not properly aligned o r reused

Drain plug not torqued correctly

Wrong sealant used during fluid replacement

Solution:

Only get transmission servicing done at authorized Changan centers.

Always request a post-service leak inspection within a few days.

Check under the car for drips after any fluid change.