Please could someone advice if the battery voltage when running is looking correct? New battery and alternator done 6months ago. Keeping getting gearbox fault message on dash and going into safe mode.

Voltage when running 13.64v

I would have thought nearer 14.4 with engine running. May be lower if run for a while and battery fully charged. 2012 tdv8 Westminster arrived Jan 19 gone Dec 23

200 TDi discovery bobtail gone
RR classic v8 bobtail gone
300 tdi Discovery 3 dr gone

Yes I keep seeing post on her of people saying it should be around 14.4v. I'm having some intermittent electrical issues one being gearbox fault. Maybe could be due to low voltage issue

Mine, 09 Facelife 3.6, new alternator 4 years ago runs at 14.4 V, with regards to the Gearbox error, I assume you have changed the oil and filter and the Mechatronic plug, is there an error number?
Started the beast this morning 11.9V and it was all fine, back on charge tonight though..
Will

The error code for the gearbox is this

Click image to enlarge