Between 26 September and 20 October 2006 Thalys PBKA 4302 was used for test runs on the HSL 4/HSL-Zuid. These test runs started at Antwerpen-Luchtbal station and ended or at the border, or at the viaduct over the "Hollandsch Diep", depending on the clearance of the Dutch tracks by the Dutch authorities.

View on the side of car 8 of Thalys PBKA 4302. Note the special logo on the door, applied for the 10th anniversary of Thalys in 2006.