The Autoroute A 32 was being planned long French motorway, whose beginning in Thionville and its end should be at Toul. The plans were set in 2010 in favor of the expansion of existing infrastructure projects.
In 1966, the first portion of the first A32 between East and Metz Freyming -Merlebach was completed. In 1968 was the extension to the German border Saarbrücken- Golden Bremm, where she found continuation in the A6. In 1982, the section between Metz and the threading of the A4 Metz in A314 was umgenummert and integrates the further section to Merle Bach in the A4. 1996, was the Umnummerung the residual piece in A320.