diablodre

94' C280 M104 engine
VIN: WDBHA28E1RF050166

I have checked all along the underside of the switchover valve area and still cant find a home for this vacuum line.

If anyone can perhaps check their c280 and take a quick peak to where exactly it connects to, I would be forever grateful.

I went as far as to go to the local junk yard and check another c280 (MY96) and it seemed that it connected under the windshield washer reservoir. I went back under my hood and saw that the vacuum line under my washer reservoir lead to a different connection under the switchover valve.

I don't know if the vacuum lines were routed differently depending on your c280's model year, but this has been kicking my *** for close to a month now 😪

diablodre

https://youtu.be/riglIr85ZsA

diablodre

Here's video of the c280 I used as a reference from the junkyard with the vacuum line routed underneath the washer reservoir:

https://youtu.be/Gd9zxCdAEe0

diablodre

Here's a video of my vehicle with the vacuum line routed differently.

https://youtu.be/jx5bt6pmcJE

espurin

I think it is going to a sorenoid valve under the washer tank.