tomvogel80

Seat Tarraco hybrid engine issue

I am pulling my hair out! My 2023 Seat Tarraco hybrid is giving me grief. Check engine light is on, power is way down, and the engine nearly stalls at idle. Plus, my fuel consumption is through the roof! Getting a whistling noise, almost a loud hissing when I accelerate. I suspect a boost pressure issue, maybe the wastegate valve. Already checked the pressure sensor, but that seems fine. Anyone else experienced this?

4 comment(s)

Sounds like a boost leak. I had a similar issue with my Tarraco. Check the hoses connected to the turbo and throttle body. Could be a split or loose connection.

Where exactly should I be looking? Is it difficult to access? And did you also hear that whistling noise?

The whistling noise is a giveaway. It's likely a wastegate issue. Access can be a bit tight, but follow the hoses from the turbo. If you are not mechanically inclined, it's best to take it to a workshop.

It was the wastegate valve. Replaced it, and the boost pressure is back to normal. Cost me 860€. Thanks for the insight!

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