You cannot expunge a DWI conviction from your criminal record in the state of Texas, regardless of whether you were convicted of a lesser charge. However, juveniles who were convicted of DWI may be eligible for expunction if they have completed their punishment and have no other alcohol-related offenses on their record. The only way to expunge a DWI arrest and charge from your record is if your case resulted in specific outcomes, such as:
The charges were never filed
The case was dismissed by the court
You were found not guilty of the charge
Your DWI conviction was overturned on appeal