Why is red o r brown fluid leaking under my Hyundai Oshan X7?

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Why is red o r brown fluid leaking under my Hyundai Oshan X7?

After parking my Oshan X7, I noticed small red o r dark brown fluid spots underneath the vehicle. The leak seems to come from the center o r slightly towards the front. Could this be a transmission fluid leak? How can I confirm its not engine oil o r coolant, and what part of the transmission might be leaking?

Gari Specialist asked on 12 Jul 2025 13:50:34 pm

1 Answer

11 views |

Gari Master - on 12 Jul 2025 13:53:17 pm

Red o r dark brown fluid under the car is a strong indicator of a transmission fluid leak—especially in vehicles with wet DCTs like the Oshan X7. The transmission fluid in these systems is typically red o r brown, unlike engine oil black/brown o r coolant green/orange.

Common causes:

Leaking transmission pan gasket

Loose o r damaged drain bolt

Failing output shaft seal

What to do:

Place a white cloth o r cardboard under the car overnight to confirm fluid color and leak location.

Visit a Changan service center for an inspection. Low fluid levels in a DCT can lead to rough shifting o r long-term gearbox damage.