Newbie question

Hi there, I bought a 2018 Q7 recently and got the OBDEleven scanner because I have a year of CPO warranty.

How can I know for sure whether faults are current vs historical and not cleared?

I found 7 faults. I am planning to have the car in for an assessment. I told them about the codes, the salesperson said "we can confirm when you come that the codes are historical and not current, and they just weren't cleared."

I'm pretty concerned about being screwed around by the dealership and them not fixing issues by saying the are historical when they are actually current - two of these faults have Audi TSBs.


The faults are below:

46 Comfort System
System description: BCM2 MLBevo
Software number: 8W0907064ED
Software version: 0387
Hardware number: 8W0907064DD
Hardware version: 025

Faults:
U112100 - Databus missing message
Intermittent



74 Chassis Control
System description: Fahrwerk-SG
Software number: 4M0907777L
Software version: 1244
Hardware number: 4M0907777B
Hardware version: H37

Faults:
C11E2F1 - Front axle ride-height control system
extremely low level detected
Intermittent


C1034F0 - Left front level control system sensor
Rebound stop detected
Intermittent


C1035F0 - Right front level control sensor
Rebound stop detected
Intermittent


C1036F0 - Left rear level control system sensor
Rebound stop detected
Intermittent


C1037F0 - Right rear level control system sensor
Rebound stop detected
Intermittent



19 Gateway
System description: Gateway
Software number: 8W8907468F
Software version: 0123
Hardware number: 8W8907468E
Hardware version: H42

Faults:
B191604 - Backup battery
Faulty
static