While you wait for answers, we may have found some information which could help you.
Click here for Oven Replace Displaybosch ovenHBA13B1.OB bulb cover?
how can i increase volume on bosch timer?
How to remove the fittings to a Bosch light bulb oven?
bosch oven door hinges snapped shut?
fix oven cover?
Hinge snapped shut on Bosch ovenHBA138B150B/05?