The hose normally splits on the engine side,away fromt the front of the vehicle, does it look oily at all? Normally if there's an oily patch on the hose there will be a split. Not sure how thick they are, 3mm ish I guess.

If you have a whooshing there is a boost leak from hoses/intercooler.

Being a 56 reg, you may have the electronic type of EGR, normally if these have a fault they put on the engine management warning light.

With a fault code of P0404 or similar..



Euro 4 emission spec EGR.



Earlier type with vac operation and level sensor.