I Have a 1.8L Turbo Audi TT, and im having trouble finding stuff for it (like a blow off valve for example) but im finding it easy to find one for a VW with the same engine (like a turbo jetta) Can I install a part for a VW 1.8T part on my audi 1.8T engine?
j_teague682007-08-17T22:46:24Z
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The Audi TT is built on the same exact platform as a '99-2005 Golf/Jetta/Beetle, and the engines are the same. The differences in performance between the VW 1.8T (150-170HP) and the Audi 1.8T (225HP)is a more agressive chip mapping and that Audi uses two intercoolers on the TT. The Golf/Jetta has only one.
The 1.8T in your TT is pretty much the same engine in the A4 and Passat as well, except for small differences between the motor mount positions, exhaust and intake, due to its being mounted inline (north to south) in the A4, whereas the TT uses a transverse mounted (east to west) engine.
sure you can use some VW parts in your Audi like everyone says make sure you cross reference the part numbers, but VW/AUDI does not use a "blow off valve" in their 1.8T engines. They use a "Bypass valve" you are probably looking at an after market product and trying to retro fit it to your Audi.
I beleive the Passat is the same thing as an Audi A3. Find the part # on the valve and cross reference it with the dealer, alot VW & Audi parts are the same.