Use this reinforced rubber hose to replace various vacuum and fuel hoses in your Volkswagen. Don't let cracked, plugged, or damaged vacuum and fuel hoses cause hard to find drivability issues. Sold in 2 meter sections, cut it to fit your application. 5mm (3/16") I.D. x 2m (78") long.
A broken vacuum hose will cause all sorts of engine issues. If the engine has not been running correctly, then there is a risk that the oil has been contaminated from poor ventilation. Change the oil to start fresh once you have found the problem. Keep track of your service records with a genuine VW portfolio.