Barn Door Adjust

[Jukelook]

Hi does anyone know if you can adjust barn doors , I have bought a Fiamma bike rack and the lower door hook/clamps are catching on the bumper.Think my only option is to try and move the doors up about 5mm ?
Thanks in advance

 

[Old Crow]

http://www.1946vw.co.uk/vwbooks/vw_info/T5_pdfs/T5_rear_doors_adjust.pdf . I hope this link helps my freind.