Seat Altea EGR valve

[Toady1]

I've got a favour to ask another air actuated EGR value owner. I've checked a friends passat and another A4 but they have an elecronically actuated one. My car has the eml light on for the EGR 'insufficient air flow' fault P0140 iirc. I've removed the EGR cleaned it out (it wasn't too bad) and refit with new gasket/O-rings. But fault light comes back on.

Now I don't know the mechanical operation of the EGR, but there is what looks to be an inspection hole either side of the EGR actuator. With my engine running air can be sucked in through these from the actuator. So I'm wondering if the internal seal is ruined. Can someone who also has this type of vale check for me when their engine is on idle, if theirs also sucks in air there or not. I put my fingers over the holes, 2 of them either side, to find out and post back please. Thanks in advance.....

I'm wondering if my EGR internal seals are gone so the EGR itself is dead and needs replacing, or if its an electrical fault.