I'd recommend removing the bolt on the right of the air filter box before you touch the EGR valve. You can then lift the airbox out of the way which will allow you slightly easier access to the EGR valve with your ratchet. You need a 10mm spanner or socket for both this bolt and the three bolts that hold in the valve.
Right i have taken the egr apart following the instructions in the thread above but the valve/Solenoid look as you would expect with under 250 miles on it (in good condition, no dirt or corrosion) So now i have a problem, i can't find anything wrong with the EGR, the valve has been taken off and cleaned well even though it worked ok before if
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