Q7 2015 various faults

[GJF]

My Audi q7 2015 has started throwing up various faults - TPMS, gearbox malfunction, stabilisation fault and head light range fault. It then started taking a few attempts to start letting it run through the faults removing key and trying to restart each time is different. Took it to a performance garage don’t rate our Audi dealer and they said they couldn’t find anything wrong and cleared the faults next day issues started again we’ve replaced the battery all seemed good first drive faults disappeared next morning back to square 1 anyone else had the same issues or can help thanks in advance 

[Magnet]

New battery coded to car Gill?

Alternator output checked? 
Kind regards,

Gareth. 

[Magnet]

Any answers for us yet Gill? 

[GJF]

Sorry never seen your first reply. Yes new battery codes and alternator checked. Off on holiday this week so think we may look into an auto electrician when we’re back. Occasionally it will only come up with gearbox malfunction and when it does it will start first time.

[Magnet]

Thanks Gill,

Make of battery? - as a matter of interest? 
Kind regards,

Gareth.