Hi. Just I try to find if anyone has done this...

I try to find what involve to replace engine 1.5 tsi (DAD) engine from 2018 with a new model. Still i searching a new engine after year 2020, but I'm not sure what involve this.

Examples are:

I know the engine design ( fit on car chassis are the same).

I don't know if electrical plugs ( harness) are the same.

I don't know if can I use the same ECU with the new engine.

My engine it's with Westgate turbo and I'm thinking to buy one with variable turbo.

My car do not have " carbon filter"

I can thinking more then this issues. Any idea and advice are welcome.

Regards Marius.

Is your current engine dead?

Have you been able to source a replacement the ECU & are you doing the engine swap?

Edited 6 September, 20256 Sep by Ootohere

Hello, welcome to the forum.

Why do you think your vehicle needs an engine transplant?

21 hours ago, Warrior193 said:

Hello, welcome to the forum.

Why do you think your vehicle needs an engine transplant?

Hi. I had enough with this one. I brought this car second hand. On the odo have 166000 miles. I have a knocking in the engine, and loose a lot of power( i can't get quick acceleration) At the beginning I through it is the rockers or the lifters, I replace them with the new one's. Noise still there...and now I think I did not set the camshafts in the right angle!

On Dashboard coming that light " you can't reward over 3000rpm" Acc dont working anymore, and I got a message " Acc error"

I want to try with a different engine, but of course depends what involve this process. If another engine (different code) working with the same ECU...I will go for it.

Thanks!

23 hours ago, Ootohere said:

Is your current engine dead?

Have you been able to source a replacement the ECU & are you doing the engine swap?

Hi. Yes I had Google it but I dont have a correct answer. When I said about carbon filter I mean that ( I can't remember the exact name) like a dpf on a diesel cars. Engine its not dead...but I think its at the end of his life!

A 2018 1.5 TSI ACT Skoda has a GPF / Gasoline Particulate Filter.

I've done a few swaps in my "nut&bolt" career, both in auto shops and of the "shade tree mechanic" variety, and while never on such a newer car (newest was at least 10y), the only case in which I witness a "plug&play" situation was with a CLK W209 which went from 240 M112 to 500 M113 reutilizing the same engine loom, all the other cases always needed some electrical attention.

And even this case required the donor car's ECU, keys complete with ignition switch to overcome immobilizer, and proper diagnostic tools to "reprogram" the car's system to accept the new powerplant.

So I would suggest that at least you would a donor car complete with that to start with.

You could try to run another engine with your ECU, but is a gamble as it depends on the "closeness" of the two units. I've modified Audi AANs (S6 2.2 20vt 230cv) into "ADU" RS2 configuration (315cv) just changing the necessary hardware and swapping the ECUs, but those engines are/were enough "dumb" to deal with a simplified send/receive/accept data. If you deal with an ODB-compliant unit swap, you will need surely to have VCDS or equivalent to synchronize the other car's ECUs to it, and there is not guarantee you will succeed if your car has the dreadful SFD or other component protection active.

In my experience, VAG cars are a mixed bag, some things are straighforward, some others a nightmare.... not the easiest to play with, but there is plenty info around.

Make some homework and then decide. However .... reading the above I can't understand who diagnosed and repaired your engine, that still does not work fine. Unless your engine condition is terminal and the overhaul is extremely costly, or you desire higher power unattainable by some hardware/software tuning work, I would look into getting your unit properly repaired before an improbable swap ...

Don't forget also whatever you find out there might need work as well! Unless you are extremely lucky to find a cherished car with low miles that had the bad luck of a bad crash - rear better, most cars in a junk yard are past their prime, and there is a reason why they were thrown there ...