Hi there, 
I have a 2019 Audi s3 and recently hit a deer on the road which punctured my driver side auxiliary radiator which made a coolant leak, around 30 seconds to a minute later my coolant light came on and I got out and seen it was leaking. Luckily I had coolant in the car and topped it right up and kept driving again until it came on, when it came on I topped up with water and drove it around a mile to my house without the light coming back on. I looked at the oil temp and coolant temp on the dash which were both still at operating temp. I then switched off the car. These parts are now getting replaced.

After researching I see that the driver side auxiliary radiator helps cool the dsg, and am looking for some opinions on if anyone thinks there may be more damage to the engine/gearbox.

many thanks,

ethan

Edited May 26, 20251 yr by EtthanC

Ethan.

Your frequent refilling and short journey make me confidant there has been no damage. No guarantees of course, but I would not be concerned if it was my car.