- Fri Mar 29, 2019 4:35 pm
#9179
Hello thanks for the feedback on my b5 oil in air filter you are correct breather pipe goes into air box than the you all for your help
The breather will only spit oil into the breather if the engine is overfilled with oil.
The EFI has a trap below the breather spigot to return oil to the engine.
The breather is supposed to go into the air box. This pulses the plenum chamber which aids induction. It's a fuel injection thing. It accelerates the air along the inlet tube. Plenum chamber is the large capacity air box, also note long tube to throttle body; these are typical for fuel injection. Don't be inclined to remove the breather pipe from the air filter, this will cause a small drop in performance.
Check the oil level is between the two marks and not at the top mark, do not overfill.