Hex key for Rear Differential Removal

[naza911]

Hi,

I am going to try and remove the rear differential on a 2003 C Class (W203) C180 kompressor.

I have taken a look at the bolts that it has an they appear to be rather larger allen/hex keys. I am not sure sure what tool exactly will fit or be able to remove the nuts.
I was wondering if anyone else knew?

 

[Silver_Star]

14mm hex for the fill and drain plugs.