Was gathering the parts to hook up the headlight leveling system on the european headlights. Got everything but the T or Y connectors. Bought the vacuum hose from the dealer but he didn't have the right size connectors. Didn't think much of it figuring I could go to any McParts store and get them. As it turns out they didn't have anything either. Anyone have a source or part# for these connectors. I know the vacuum hose is 4mm od.

 

take the hose with you to an aquarium store or garden store, they use those types of connectors in those sizes

 

You need 3 of 124-800-44-15 ....were about 16$ each.

Not sure if you can buy in the USA w/o a euro-VIN with a USA reg. though. I can get 4u them if you can't.

Yellow connector goes to the headlamp, black nipple goes to the interior dial/switch. You cut the purple plastic hose in half and put each end on whatever tubing you use in between. You'll need the check valve also...got one?

 

Also most home centers ( Lowe's, Home Depot ) .
Look where they sell the bulk tubing.
Fittings are nothing special, just a barbed tube fitting.
If you can't find the "y", then just use a "T"

 

Just an update. It turns out the connectors are those used on older mercedes. I went to an online parts store and keyed in a 1981 380 SL and used vacuum for the keyword. The connectors were there as well as the check valve I needed. The check valve is the blue and black one by the way. Thanks for everyone's help