CEL - But no codes
 

Car is a 2008 Audi A3 2.0T with DSG. Currently at 70,911km. Just had last service about two months ago. Today CEL came on. I checked using an Autel VAGSCANNER VAG305 unit which showed no codes. I then used VAG-COM 409.1 and this also showed no codes. The speed limiter has not kicked in. I cycled the ignition about 4 times and also the gas cap about 4 times. CEL is still on.

The dealers are closed until Monday at 0700 EDT but that's when I have to start driving back home ~700km.

Any ideas what this might be? I figure it might a cluster error, but that usually throws a code too.