Renault Kadjar Diesel 2015: Noticeable symptoms and suspicion of boost pressure control - exchange of experience wanted

Hi, I had a similar problem with my 2012 Renault Clio Diesel some time ago. It sounds like your boost pressure regulator is electrically faulty. For me it caused similar symptoms as you describe. Black smoke, lost engine power, a loud hiss and whistle, and of course the check engine light. My mechanic ended up having to replace the boost controller. It was definitely not a small problem. Your car should go to the garage as soon as possible before it causes even bigger problems. Hope this helps you with your problem.

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Hey, thanks for the quick reply and the useful info! Do you happen to remember how much the boost pressure regulator cost you? And have you had any other problems since then?

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Hey, of course I still remember that. The repair of the boost pressure regulator wasn't exactly cheap, it cost me €1520 (the turbocharger itself had to be replaced). But the good thing is that since I visited the workshop, the problem with the boost pressure control has been solved and there are no further problems. The car is running perfectly again. So I can advise you to do the same. Don't worry about the cost, it will pay off in the long run.

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Thanks for the feedback. That reassures me a little and gives me an idea of what to expect. I'd better go straight to the mechanic and have it checked. I just hope it won't be that expensive. But even if it is, it's important that the car runs smoothly again. Hopefully this won't happen to me again in the future. I really appreciate your help and tips!

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