![Mysterious separated vacuum hose...PICS...2001 A4 1.8T - Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more! Mysterious separated vacuum hose...PICS...2001 A4 1.8T - Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more!](https://www.audiforum.ca/attachments/a4-b5-typ-8d-1994%962001-75/7855d1339640503-mysterious-separated-vacuum-hose-pics-2001-a4-1-8t-img-20120613-00032.jpg)
Mysterious separated vacuum hose...PICS...2001 A4 1.8T - Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more!
![Does anyone know what this hose is and what it does? Car is a 2001 VW Golf GTI 1.8t awd engine, thank you : r/EngineBuilding Does anyone know what this hose is and what it does? Car is a 2001 VW Golf GTI 1.8t awd engine, thank you : r/EngineBuilding](https://preview.redd.it/qr9gd233z4q21.jpg?auto=webp&s=887e72e328f15d48428925c892b3021fdf554472)
Does anyone know what this hose is and what it does? Car is a 2001 VW Golf GTI 1.8t awd engine, thank you : r/EngineBuilding
![Audi A4 Questions - hello 2003 audi a4 1.8t had all my vacuum lines canceled so i seen a v... - CarGurus Audi A4 Questions - hello 2003 audi a4 1.8t had all my vacuum lines canceled so i seen a v... - CarGurus](https://static.cargurus.com/images/site/2015/05/02/14/33/pic-5510977311002334591-1600x1200.jpeg)
Audi A4 Questions - hello 2003 audi a4 1.8t had all my vacuum lines canceled so i seen a v... - CarGurus
![DIY* - B5 1.8T Vacuum/Check Valve/SAI/PCV - Delete & Simplification - Page… | Save, Floor plans, Emissions DIY* - B5 1.8T Vacuum/Check Valve/SAI/PCV - Delete & Simplification - Page… | Save, Floor plans, Emissions](https://i.pinimg.com/originals/e2/b5/44/e2b544be69407987ad063805f48497e9.png)
DIY* - B5 1.8T Vacuum/Check Valve/SAI/PCV - Delete & Simplification - Page… | Save, Floor plans, Emissions
![On a 2002 passat 1.8t where does the vacuum hose go {both ends} there is only one on intake manifold to? On a 2002 passat 1.8t where does the vacuum hose go {both ends} there is only one on intake manifold to?](https://ww2.justanswer.com/uploads/MA/MASTEROFMASTERS/2012-10-17_231207_img_0067.jpg)
On a 2002 passat 1.8t where does the vacuum hose go {both ends} there is only one on intake manifold to?
![Amazon.com: AotoKoop High Performance Silicone Vacuum Tubing Hose, ID 6mm (1/4 inch), OD 11mm (0.43" inch), 5 Feet per reel (1.5 Meter), 60 psi Maxium Pressure Red : Automotive Amazon.com: AotoKoop High Performance Silicone Vacuum Tubing Hose, ID 6mm (1/4 inch), OD 11mm (0.43" inch), 5 Feet per reel (1.5 Meter), 60 psi Maxium Pressure Red : Automotive](https://m.media-amazon.com/images/I/61nJQaXetlL._AC_UF894,1000_QL80_.jpg)