What socket to change glow plug?

Hi Guys,



I have seen loads of opinions round the net on what socket set to use to change glow plugs but wondering if anyone can give first hand advice?



Car is 2004 Scenic Mk2. 1.5dci.



I can see the plugs just by removing the plastic engine cover and most people say a long socket is needed.

Any further opinions on what tool to use?



Thanks in advance