Dannyi

8 minutes ago, Magnet said:

How are you testing it Danny? 
When you say with the ignition on - do you mean with the engine running? 

Yes so 12.2 V with engine off and 13.4 V with engine running 

Testing with fluke multimeter across positive and negative terminal…

16 hours ago, Magnet said:

Hello Danny,

Thanks for joining the forum and posting your plea. 
Simple things first:- 

Worth getting a sophisticated battery check. 
Kind regards,

Gareth. 

Battery tested…12.2V with ignition OFF.  13.4V with ignition ON

Is that about right?

My 2013 A4 has started to bring up numerous faults when turning the ignition on. The first fault is a ABS fault then it brings up parking brake malfunction fault and headlight adaptive fault.

any ideas?