Found vacuum leak. Where to connect? (E230 8v)
Below is a photo of the vacum source which is not connected in my car. The car is running much better if I plug it.
I need to know what it is used for and if everyone has it open or connected to something.
1989 230E, 8v, 166.000 km, updated to 94/95 trunk & hood
2002 Daewoo Nexia 50.000 km
1987 VW Jetta GLE 16V, Recaro seats
1982 Volvo 240 DL (lovely car!)
and few more american cars.