Car Check - Service History Info

Hi there!

I'm planning on buying an 2019 astra k elite tomorrow from a used dealer (family business 50+ years). I've just bought a vehicle check from carcheck and looking at the service history I can see two ambiguous notes.

- Service at 3.5k miles, September 2022 "INFORTAINMENT SYSTEM WILL HAVE"

- Service 30k miles, April 2025 "Investigate customer concern as detailed below. Initial 1 hour investigation £102.00 EML on dash dr 
Carried out a Visual Vehicle Health Check. 
Replaced front radiator shutter grille £435.23"

I take it there's no issue with the infotainment system now as the service was over three years ago but I'm worried about the check engine light this year. Would the issue likely have been the front radiator shutter grille which was replaced?

Note the car has approx 35k miles on it now and seems to have been in trade for a few months. Valuation on autotrader is about 5% lower than the market however the dealer said this would be average for an astra.

Thank you in advance, quite an anxious time buying a used car!