Espace hybrid stalling rough idle

Having trouble with my 2023 Renault Espace hybrid. It's got about 190000 km on it. Lately, I've noticed the fuel consumption has gone up, and the engine occasionally stalls when I'm idling. The check engine light is also on, and I've seen some smoke coming out when I accelerate hard. I'm thinking it might be related to the air intake, but I'm not sure where to start. Any ideas?

4 comment(s)

Sounds like your MAF (Mass Air Flow) sensor might be borked. Is it running rough, like a misfire? A bad MAF can cause all sorts of havoc, like your symptoms. Think of it like your engine trying to breathe through a clogged straw.

Thanks for the quick response! Yeah, it does feel a little rough sometimes, especially when it's cold. What's the best way to check the MAF sensor? Is it something I can do myself, or should I take it to a mechanic?

Checking it yourself is possible, but honestly, without the right tools and knowledge, you might just be poking around in the dark. If you're seeing smoke, stalling, and a check engine light, it's probably best to get it diagnosed properly. Otherwise, you might end up chasing ghosts and throwing parts at it. I'd recommend a workshop.

Thanks, I appreciate the advice. I took it to the shop, and you were spot on - it was the MAF sensor! Cost me about 365€ to get it replaced. Now it runs like new.

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