Clear Tube Connected to Secondary Air Pump
 

1994 c280 w202

Can anyone tell me which system the clear line is connected to? For that matter what are the other lines connected to? I think the 5 yellow lines are for the doors and trunk but what about the other 2 lines (the clear one and the ....other one?) Thanks for the help.

bump.:cool:

Ok so I dissconnected it today to see "what if.." well the pump stopped for a moment then started up in overdrive. Has anyone worked on a 1994 c280 and become familar with the vacuum system?? Thanks.

Do you mean the "central locking" pump?? The translucent line on that goes to the vacuum manifold at the RR of the engine compartment & helps the engine with vacuum for the A/C system & for up-shift delay.

Secondary air pump is electric under hood.

Doc, I sent you an email. Thanks for the help so far!!