robinkoenig9

Clio Hybrid Engine Light and Exhaust Smell

I've got a 2021 Renault Clio Hybrid and I'm running into a weird issue. I've clocked up 243260 km so far. Recently, the check engine light popped on, and the engine's been running rough. I've also noticed what seems like an exhaust leak and a strong exhaust smell, even with the windows up. I've checked the DEF fluid level, and it's fine. Could it be related to the catalytic converter or maybe some NOx sensors? Anyone else had similar issues?

4 comment(s)

Sounds familiar! I had a similar issue with my 2018 Peugeot 308 (diesel, though). Engine light, weird smell, the whole shebang. Did you check the lambda sensor yet? That was the culprit in my case.

Interesting. Lambda sensor... Where is that located, and is it something I can check myself, or am I better off taking it to a shop?

I wouldn't mess with it yourself unless you really know what you're doing. It's usually near the catalytic converter. I'd suggest getting it checked out by a professional to be safe. Could save you a bigger headache down the line.

Appreciate the advice. Took it to the shop, and you were spot on – defective lambda sensor. Cost me 375€ to get it sorted, but at least the engine's running smoothly again and that awful smell is gone!

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