Ok so what engine is this?

[RickV]

So I bought a used replacement engine for my A4 B7 2.0t FSI since the cam seized. I was told the new engine is the same engine that I have now. They both have engine ID BWT. They both have timing belts not chains. I go and order a shit ton of replacement parts for it before I put it in the car and when I went to rebuild the vacuum pump I realized that the pumps from the 2 engines are different. I tried looking into this and am now thinking is this replacement engine a TFSI? The engine says it was made in March of 2008. So is this one of those 2008.5 engines and is it still going to work in my car?

[Scotty@Advanced]

The pumps may not be identical but they look like they will interchange.

[RickV]

I don't think they will. The piece that goes into the cam is different. The newer engines pump has a notch in the middle with a small ball there. I can just get a different kit to replace the seals on that pump. This is just a surprise to me that it appears to be a different engine now. It looks like it's a TFSI or something.

[Jayz691]

They both will work. They have a newer revision that is supposed to help keep from leaking oil over time. They changed the location of the o-ring. Engines are the same, if both BWT(07-08, US).

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[RickV]

Ok but the rebuild kit I got for the vacuum pump that's for a B7 A4 2.0t FSI won't work since the o-rings are different but the kit that's available for a B8 A4 2.0t TFSI looks like the correct ones.

[RickV]

I just pulled up a pic of a tfsi vacuum pump and it's different than what I have so I guess that makes sense what you said.

[Gowking]

It might be helpful in the long run if you keep all the posts on the same car/engine journey in one thread rather than creating a new thread on every question/issue you come across.

[oVeRdOsE]

They both will work. They have a newer revision that is supposed to help keep from leaking oil over time. They changed the location of the o-ring. Engines are the same, if both BWT(07-08, US).

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my b7 is from one of last batch in north america, so a late 08' , and the vacuum pump got the flat plate.

[Jayz691]

Ok but the rebuild kit I got for the vacuum pump that's for a B7 A4 2.0t FSI won't work since the o-rings are different but the kit that's available for a B8 A4 2.0t TFSI looks like the correct ones.

Most rebuild kits ya find on ebay/Amazon, will come with 4 orings. One for the nipple, one for the case cover, and 2 for the pump to head(2 different sizes). So ya have correct one for either okd ir newer revision.

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