The nut holding the EGR valve seems to be rounding off. Couldn't take it off.

Any ideas?
I'm thinking loosen the EGR pipe at both ends and just root the pipe with the valve in situ. Obviously I will have to remove the allen bolt on the oil filter housing. I just don't know if I will have enough access.

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'O=00=O'
bmw 2002.
long live the legend