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#1
06-06-2008, 11:16 PM
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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.
__________________
If it ain't broke take it apart and find out why.  1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon 
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#3
06-09-2008, 11:48 PM
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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.
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon
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#4
06-10-2008, 08:15 AM
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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.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#5
06-10-2008, 10:31 PM
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Doc, I sent you an email. Thanks for the help so far!!
__________________
If it ain't broke take it apart and find out why. 1983 300SD, 4 speed 1994 C280 1987 300TD wagon 1996 HD Road King Ride in Peace Eric Peterson, Harley of Macon
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