2014 Dacia Logan Diesel: Black Smoke, Power Loss, and Shaking Issues

Hey! I went through quite a similar situation with my 2011 Dacia Duster 2 years back. Just like yours, mine was struggling with power loss and there was annoying hissing and whistling sound. Zeroed down the issue to a defective waste gate valve after a thorough check at my local garage. The mechanic explained that a faulty waste gate valve can't control the turbocharger's boost pressure properly and that's why the engine is struggling. All that black smoke you're seeing is because the air-fuel mix is just not right. It's definitely a serious issue not to over stress you but ignoring it can damage the turbo and other related parts. So, it's not just another wear and tear thing. They had to replace the whole waste gate valve unit. Took them a full day at the workshop. And boy, she runs smooth as silk now! The fix did the trick! Hope this helps, don't delay getting her checked out! Good luck!

Hey there, Really appreciate you sharing your experience. Sounds like we're both in the same boat, or car in this case, huh? It's an absolute nightmare, and honestly, I'm just about ready to pull my hair out. With your waste gate valve fix though, do you recall roughly how much that set you back? I'm just feeling a bit anxious, especially since the last garage visit pretty much took me down to my last penny. And, just to double-check, you haven't had any more pop-up issues or engine surprises since you got it sorted two years ago, right? Rather not have any extra surprises down the road. Literally. Thanks again for the help, I really appreciate it!

Hey again, Ah, the joys of car ownership, right? Totally get where you're coming from - it's heart wrenching when our loyal steeds start causing trouble. About how much it burnt my pocket, well, replacing the waste gate valve was indeed a bit pricey. The whole thing set me back by around 860 Euro, give or take. Not exactly a small sum, I agree, but totally worth it. The peace of mind you get in return, knowing your car's running like it should, is priceless. The most reassuring bit? Since that repair, it's honestly been pretty smooth sailing. Haven't had to deal with any surprises or nasty shocks from the engine department since then. The mechanic seemed to hit the nail on the head with diagnosing the faulty boost pressure system, and fixing it definitely did the trick! Hope this gives you a bit of comfort. Do get your car checked out soon, and best of luck with everything. Kudos for keeping ahead of the game!

Hey! You can't even begin to imagine how relieved I am to hear that. The price surely hits a nerve, but considering the risks of ignoring such a critical issue, I guess there's no room for negotiation here. That peace of mind you mentioned sounds especially appealing right now. Thanks a bunch for your advice and reassurances! As much as I hate the thought of another garage visit, knowing what I'm likely dealing with and what's at stake, does help a ton. It's good to know your beast has been behaving over the last couple of years! Gives me a spark of hope that, this might just be it for me too. Well, off to my local garage now, fingers crossed they have the same expertise as your did. Cheers and thanks again, you're a lifesaver!