Remove drip tray from bosch KTR1670GB

Question

Can you please advise on how to remove drip tray from bosch fridge KTR1670GB. Tray filled up with gunge and needs cleaning and disinfecting. From what I can see a 'tightener' linked to the compressor keeps it in place. I suspect that this could be un tightened to get the tray out, however, there is hardly any room to do this.