Hi, so I’ve had my audi a6 just over a year now cars been brilliant tbh drives perfect, on Saturday I did a 350 mile round trip to London and back in one day no issues at all that’s probably the longest drive I’ve done in the car, today I was driving back from work I got a message on my dash saying gearbox malfunction, I scanned the car and it gave me these three codes

P084000

Transmission Fluid Pressure Sensor/Switch A

P177500

Hydraulic pressure sensor 1 Adaptation at limit

P060B00 Internal Control Module A/D Processing Performance

Now a couple things to note, the oil was last changed at 118k the cars now sitting close to 155k miles, as it stands the car still runs and drives absolutely normal no issues at all, I did pull over and turn the car off then back on and the light disappeared but then came back on after around 30 seconds of driving I cleared the codes and they came back, has anyone came across this issue before it’s very random as I’ve never had any sort of warning signals like this I use the car daily and it always drives absolutely perfect

As the gearbox oil was changed recently it makes me think it's sensor related. I think it needs an Audi independent specialist.