Can any member help with identifying one of the rubber hoses on a 500/560SEL? Looking from the front of the engine. On the left bank below the air cleaner is the air intake rail for the left hand fuel injectors. (Yellow plug at both ends with four injector connectors) Running off a yellow junction joiner in the centre is a black rubber hose of the same diameter that exits for an inch before bending at about a 40 degree angle towards the rear of the engine to dissapear under and connect to the underside of the Fuel injection assembly. Merc Dealership does not list this part and has supplied all other hoses. I can't find a part number on the old hose. It was rubber in its former life, however has now turned to something resembling plastic or steel!
I don't want to remove it as it will break and am terrified what brittle part it may connect to under the injection assembly. Any help wiith what this part is called or a part number would be appreciated. What does this hose connect to under the injector assembly? Is it a metal connection or another scarey old brittle rubber connection. Just need to know if it can be removed without breaking what its connected to. Any information or advice would be appreciated.