Search for solutions: Engine problems and black smoke in 2017 Toyota Avensis Diesel

Hi buddy, your symptoms sound a lot like what I experienced last time with my 2014 Toyota Corolla. I strongly suspect your intake system is leaking. That was the case for me and it was nothing to laugh about, I can tell you. The engine also ran rough and had little power. When accelerating, it jerked and smoked black smoke out of the exhaust - just like yours. In the end, the mechanic found out that a vacuum hose was broken. The repair was not easy, as the entire intake system had to be removed first to replace the broken hose and restore the tightness. But with an experienced mechanic, the problem should be solved. So, don't let up until they check and repair it for you. Because if the intake system remains leaky, it can cause serious damage to the engine. I hope you have better luck with your garage than I did back then.

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Hey, thanks for the quick reply and the tip! It really sounds the same as mine. Do you remember how much you had to pay for the repair? And did any problems arise again afterwards, or has everything gone smoothly since the repair? Thanks again in advance!

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Hey, great that you got back to me so quickly! So, I spent a total of €425 on repairing the leaking intake system. That wasn't a lot of money, but afterwards the engine ran like clockwork again. The deviation in the intake volume of the engine that you mentioned was also rectified. It's pretty amazing what a small vacuum hose can do, isn't it? Nothing else has happened since then - she's rolling like the first day again. I hope this helps you a bit and you don't end up with another rip-off. If you still have any questions, please let me know!

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Definitely, that helps me a lot, thank you very much! 425 sounds reasonable in comparison, especially if it solves the problem and prevents worse. It's amazing what a small broken hose can do... So lucky that everything went well for you afterwards. The €425 is a fair price if it means I can get my car back under control. Thanks again, buddy. I'll take your advice to heart and hope that my Avensis can give me a few more years of good service. I'll keep you posted! See you then!

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