GeronRoth

Strange symptoms in the Seat Mii Diesel 2017: problem with the intake system?

SEAT

Mii

| 2017 | | Diesel

Loud hissing on acceleration

Unsteady engine

Loss of engine power

Jerking on acceleration

Shaking while idling

Check engine light on

Dear community, I need some help with my Seat Mii Diesel from 2017. Its engine behavior is really weird. The check engine light is on, its performance is down, it shakes when idling and it twitches and hisses loudly when accelerating. I was wondering if it could be a leak in the intake system. Have any of you ever experienced something similar and can tell me exactly what the garage did to solve the problem? Any tips and experiences would be super helpful. Thanks in advance!

(Translated from German)

5 comment(s)

SchwarzDaniel

Hi mate, I had something similar with my 2015 Seat Ibiza, my level of knowledge with cars is "a bit of experience". In my case, it turned out that the vacuum line was porous due to ageing. It had to be replaced in the workshop and that cost me 165 euros. Now the car is running great again. Can you tell me more about your engine? Maybe then I can help you better.

(Translated from German)

GeronRoth (Author)

Hey, thanks for the quick help. Yes, I last serviced the car at 53620 km and nothing unusual was noticed. But since then I've noticed the strange behavior. Maybe it really is the vacuum pipe. I'll have it checked at the garage. Thanks again for the tip!

(Translated from German)

SchwarzDaniel

You're welcome! It certainly sounds like something needs to be checked. The jerky driving behavior of your Seat Mii is definitely not normal and should not be ignored. If it's the vacuum pipe, like in my Ibiza, then it's a relatively simple and inexpensive replacement. Please have it checked and then give us an update. Would love to hear if it's running again. Good luck!

(Translated from German)

GeronRoth (Author)

Sure, I'll do that. I'll go to the garage tomorrow and have it checked. I'll let you know as soon as I have any news. Thanks again for your help! Hopefully it's nothing serious and can be fixed quickly. See you then!

(Translated from German)

CarNut

Hello, from my understanding the problems you are currently experiencing with your Seat Mii Diesel from 2017 (the check engine light is on, poor performance, shaking and hissing noises) could be due to variety of issues. There could be an intake system leak, fuel system issues or vacuum leaks. A diagnostic scan in this context is essential. All the best!

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