Крис Младенов 2.0 TDI Vacuum Pump Oil Leak: Causes and Fixes You open the bonnet of your 2.0 TDI and spot oil around the back of the cylinder head. There's oil on the gearbox too, and after a longer drive, you notice that familiar smell of burning oil. Quite of... 2.0 TDI Leaks TDI Vacuum pump Apr 23, 2022