OLDMAN

I went to have my 190E smogged today. A very small vacuum line was disconnected at one end and the shop did not know where it went to. The line is partly blue and partly red and one end comes out of a vacuum junction near the battery across from the 5th and 6th spark plugs. The other end was near the front of the engine and is disconnected. Does anyone know where the other end would go to or where I could find a diagram of where it should go to. A local Mercedes dealership did not provide a good vacuum lines printout and there is nothing under the hood showing where the vacuum lines go. Thanks for any help.

garygi

The vacuum line connects to the back side of the smog air pump under the exhaust manifold.