Hello! 

I have an Audi A4 B8 (2013) 2.0 TDI car. The car randomly threw out the "Steering Lock Defective" fault, when I started the car. The steering wheel locks and unlocks perfectly when starting and stopping the car, there is no issue with the steering what so ever. 

If I have the car sitting for 30-40 minutes with the engine off, when I start it the light on the dash dissapears. If I stop and restart the engine immediately after stopping it the light comes on again on the dashboard. 

It is showing me a steering wheel and a key icon on the dash in front of me. Any ideas how to fix it, or what could it be?

I really don't want to take it to a mechanic for different reasons. 

(Sorry for my bad English.)

I'd recommend a diagnostic check to see if any fault codes flag up. 

Also how old is the cars battery? I ask as a failing battery can cause cars to have various unusual electrical issues. 

By the way you're English is fine 🙂

Hi. The car battery is new, I changed it at the start of this winter. 

Also, the fault code didn't come up since I opened the post. I hope it stays this way. 😄