I have a problem with the power steering. The 50 amp battery fuse was blown (resolved). I checked the pump today and there are 3 plugs. The one plug on the right has no wires. Is it in the order or something is missing there.

TRW pump 2011

At a guess, your car has its steering angle sensor in the cabin, near the top of the steering column, rather than low down, in the engine bay.

That connector is used to connect the engine bay version.

Are the cable entries fully blocked off with rubber plugs?

Yes, the cable entry is completely closed. So it will probably be to replace the pump. Can I use a TRW pump from a 2013 petrol model? I have one at home. Thanks

Yes, a 2013 TRW is probably OK; what part number(s) does it have on it?

The one in your photo appears to be unbranded/aftermarket. 

 

Have you checked that the thick red wire from the 50 Amp fuse is undamaged between fuse and that 2-way connector?

 

I still have one last option, I have to measure the voltage in the connectors. The pump is original, the VW logo and part number are stamped on the plastic parts.