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Skoda Kodiaq exhaust treatment malfunction

I am experiencing an exhaust treatment malfunction in my 2017 Skoda Kodiaq with a gasoline engine. The vehicle has 151604 km. The check engine light is illuminated and the engine runs roughly. I also noticed exhaust leaking and there is a strong exhaust smell. I suspect a defective lambda sensor. Could this be the cause?

4 comment(s)

Rough engine and exhaust smell? Sounds like when you're baking a cake and something's burnt – the whole thing's off. Could be the lambda sensor as you suspect messing with the fuel mixture. Has the engine light been on long?

If the lambda sensor is faulty, how does that directly impact the exhaust treatment system, specifically the particulate filter or the EGR valve operation?

A faulty lambda sensor throws everything off. It's like having a bad recipe. It can cause incomplete combustion, leading to more soot, which clogs the particulate filter quicker, and impacts the EGR valve because the exhaust gases aren't being managed properly. Definitely worth getting it checked professionally.

The lambda sensor was indeed faulty, resulting in the exhaust treatment malfunction. Repair cost was 375€.

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