Hi got a 2007 q7 3.0

Front is sat on the bump stops, codes are 01583 leak detection and 01400 for pump overheating.

Fitted the repair kit yesterday and it pumped up all 4 corners and seemed to work correctly but today having starting to drive it it bottomed out again and gave the above codes with flashing lights.

I can't even erase the 01583 now it's permanent, is this a pump issue or maybe accumulator?

Could definitely failed compressor. 

Have you checked the system for leaks, since the code points to that?  Pump overheat is probably as a result of it running constantly to try to ‘satisfy’ the leak. 
Kind regards,

Gareth.
p.s. Would you be kind enough to complete your profile.