![Audi Workshop Manuals > A4 Mk1 > Power unit > 4-cylinder engine (1.8 ltr. 5-valve turbo), mechanics > Exhaust turbocharger, G-charger > Charge air system with turbocharger > Diagram of connections for Audi Workshop Manuals > A4 Mk1 > Power unit > 4-cylinder engine (1.8 ltr. 5-valve turbo), mechanics > Exhaust turbocharger, G-charger > Charge air system with turbocharger > Diagram of connections for](https://workshop-manuals.com/audi/a4_mk1/images/a4-8774.png)
Audi Workshop Manuals > A4 Mk1 > Power unit > 4-cylinder engine (1.8 ltr. 5-valve turbo), mechanics > Exhaust turbocharger, G-charger > Charge air system with turbocharger > Diagram of connections for
![DIY* - B5 1.8T Vacuum/Check Valve/SAI/PCV - Delete & Simplification - Page… | Save, Vacuum, Floor plans DIY* - B5 1.8T Vacuum/Check Valve/SAI/PCV - Delete & Simplification - Page… | Save, Vacuum, Floor plans](https://i.pinimg.com/originals/e2/b5/44/e2b544be69407987ad063805f48497e9.png)
DIY* - B5 1.8T Vacuum/Check Valve/SAI/PCV - Delete & Simplification - Page… | Save, Vacuum, Floor plans
![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!
![I just replaced the Breather Tube and fixed old vacuum lines and now smoke is coming out of the tailpipe. (the car is I just replaced the Breather Tube and fixed old vacuum lines and now smoke is coming out of the tailpipe. (the car is](https://ww2.justanswer.com/uploads/TH/THEAUDIDOCTOR/2014-10-19_154337_pcv_vacuum_routing.gif)
I just replaced the Breather Tube and fixed old vacuum lines and now smoke is coming out of the tailpipe. (the car is
![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%962001-75/7854d1339640503-mysterious-separated-vacuum-hose-pics-2001-a4-1-8t-img-20120613-00030.jpg)