didoya

It's not just moving back from 272 to 280. The 2021 engine has more torque - 400NM. As far as I know they are now using Garret turbo, instead IHI.

TVS software does miracles and completely transforms these boxes.

It's not exactly true. Once you've got Revo Stage 1 you realize how slow it was before:)

Many 272 owners in Bulgaria are reporting the same issue (including myself). You're not alone:) It's not the fuel pipes one, as I had it in the past and it was already fixed (and I know the symptoms pretty well). The problem described is more like a vibration on the rear end of the car, not a rattle. I have visited the dealer several times and they said they are aware of the problem, bu they can do nothing about it, as they have contacted Skoda and they claimed that this is "normal behaviour".... Please let us know what happened when you visited your dealer. My wild guess is - something related to the exhaust system, which given the specific conditions is resonating.

Yep, I know that. I'm waiting for the local TVS dealer to be available. Once I map my DQ381 box and all is fine - then in March I'll probably do the TTE Turbo upgrade + Revo Stage 2 Performance pack (software, cooler, pipes and intake system). If I have some news - I'll post them here.

The REVO dealer in Sofia is also a TTE dealer, so I plan on using their services on turbo removal/installation.

These guys are also providing an "upgrade" to the bearing and guarantee reliability and longevity @400 ps. (without requiring extra calbration/remap) https://tteglobal.com/audi/s1/2.0-tsi/356/tte-is38race-ihi-turbocharger?number=TTE10354&c=15 I'm seriously considering a precaution step in that direction. Even though I'm only stage 1 it's a bit unpleasant to be left in the middle of nowhere with blown turbo, during my summer holiday trip. Plus - that's a good foundation for Revo Stage2 performance pack:)

I can confirm the Revo Stage1 is amazing! JB4 was good, but Revo is a different league. I can't believe what a simple software update can do with these engines, that's how those DNUA should come from the factory:) Next step is TVS Stage 2+ for the box. Thanks @newbie69 for all the advises and courage to be the first and share your experience!

I'm following your steps, you know:)

Today I'm also pulling the trigger on Revo Stage 1. TVS Stage 2+ for the box will follow soon:) @newbie69 - on which SPS setting you're running the car? The dealer suggested to setup 97 mode for me, and he says that even during the summer there shouldn't be any issues as long as I'm running on 100 octane fuel. What's your experience during the summer months (even though I know Swedish summer is a bit colder that the Bulgarian one)?

That's brutal! I'll definitely go that way in few months!:)

@newbie69 Thank you very much for the detailed answer! I was reading a lot regarding the REVO Stage1 and I'll mots probably go that way. The torque figures are spectacular (about 480NM. They even managed to get 505 with Stage 1, but reduced the torque due to slipping clutches at 500NM) + they say they're managing the cooling, exhaust gas temperatures, etc. What a serious gains only with software, which is considered as safe - this is one of the things Revo is famous for. And what a massive gains, regardless of the presence of GPF and absence of MPI injectors. Turns out when it comes to stage 1 - the gains are comparable with the 280 engine..

@newbie69 One year later - have you had any issues with the JB4 so far - warning lights, hesitations, etc.? I'm still wondering whether to go with Revo Stage1 or JB4. Warranty is very tempting so I'll most probably go with the JB4. Did you have the chance to make some extra measurements and/or Dyno tests? And one more question - do/how/where you hide the JB4 wiring when you visit the dealer for the scheduled maintenance?

Tell them to go under the car, remove the plastic cover under the engine and inspect the fuel lines. The rubber part of the brackets holding the lines gets loose and the line starts to vibrate and knock on the car body. Let them inspect their fuel lines and they will find it out. Forcing the car to 2.5k RPM helps reproducing the issue. it's so irritating to have this noise, I'm driving a different car now, as I spent most of my time on Sport:) The gearbox settings in the rest of the modes are too "Eco" for me.

Just to confirm. I've been to the dealer today for oil change. I've filed a complaint and they fixed the rattle. The mechanic confirmed that the noise was related to the fuel lines and is specific to 2.0tsi.