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maja_beck1

Mini Clubman engine issues

My 2019 Mini Clubman is giving me fits. It's got a reduction in power, and the check engine light is now constantly on. To top it off, I'm seeing smoke when I accelerate, the engine runs rough, my fuel consumption has gone up, and it's jerking a bit when accelerating. Also, I hear a loud hissing noise when I press on the gas pedal. Could a defective EGR valve be the cause? I've read that diesel engines are more prone to this.

Summary of the thread

A 2019 Mini Clubman is experiencing reduced power, a constant check engine light, smoke during acceleration, rough engine running, increased fuel consumption, and jerking when accelerating, accompanied by a loud hissing noise. These symptoms suggest a potential vacuum leak, possibly due to a defective EGR valve, which can disrupt the air/fuel mixture. The issue was confirmed by a mechanic, who identified the EGR valve as the cause, and a replacement was authorized to resolve the problem.

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4 comment(s)

samuelpeters1

Reduced power and a check engine light on your Clubman? Sounds familiar. I had similar symptoms a while back. Smoke on acceleration and rough running points to a potential vacuum leak somewhere in the vehicle emissions system. Have you checked the EGR valve? If it's stuck open, it can cause all sorts of problems, especially with recirculation.

maja_beck1 (community.author)

Vacuum leak, huh? Where exactly should I be looking for that? And how can I tell if the EGR valve is actually the culprit?

samuelpeters1

Yeah, the hissing sound is a good indicator of a vacuum leak. While it could be a hose, the EGR valve itself might be jammed open or defective. A faulty EGR valve messes with the air/fuel mixture, causing the symptoms you described. I ended up taking mine to a mechanic, and they confirmed it was the EGR valve. Saved me a lot of headache in the end, so I would suggest you do the same.

maja_beck1 (community.author)

Appreciate the insight. Dropped it off at the shop this morning, and they confirmed it's the EGR valve. Quoted me 355€ for the replacement, so I gave them the go-ahead. Hopefully, that'll sort it out.

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MINI

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CLUBMAN