After sorting out my stupid thermostat earlier on I went to start it earlier to be greeted with no start and the following fault codes:

18010 - Power Supply Terminal 30: Voltage too Low

P1602 - 35-10 - - - Intermittent

17645 - Fuel Injector for Cylinder 1 (N30): Open Circuit

P1237 - 35-00 - -

17647 - Fuel Injector for Cylinder 3 (N32): Open Circuit

P1239 - 35-00 - -

17648 - Fuel Injector for Cylinder 4 (N33): Open Circuit

P1240 - 35-00 - -

17646 - Fuel Injector for Cylinder 2 (N31): Open Circuit

P1238 - 35-00 - -

17840 - Secondary Air Injection Solenoid Valve (N112): Open Circuit

P1432 - 35-10 - - - Intermittent

17956 - Boost Pressure Regulation Valve (N75): Open Circuit

P1548 - 35-00 - -

The starter turns it just doesn't tick over.

I have Wiki'd the injector code faults and it says to check the injector fuse? Is there one..

I have checked both the fuses in the dash and on the battery and all are fine.

What the heck could it be now.........

Are the connections to the battery nice and clean?

What voltage are you seeing across the battery with a voltmeter before you try and start the car?

Maybe an earthing issue to the engine?