Aeg oven how do you change the bulb?

Several things can shorten the life of bulbs. It could be a factory defect, the filament is receiving too much voltage,
physical shock while the filament is heated, vacuum leaks in the bulb seal or base.
Suggest try another brand preferably heavy duty.

Many people have had faulty AEG cookers. I would return it if i were you and get something else

spray with oven cleaner leave for a day then try again

The glass cover unscrews counter clockwise and removes to be able to access the bulb itself. Note there may be a guard that has to be removed before accessing the glass cover

Oven Lighting
Warning: There is a danger of electric shock! Prior to changing
the oven light bulb:

• Switch off the oven!
• Disconnect from the electricity supply.

Place a cloth on the oven floor to protect the oven light and glass cover.
Replacing the oven light bulb/cleaning the glass cover

1. Remove the glass cover by turning it anticlockwise and then clean it.
2. If necessary:

Replace bulb with a 40 watt, 230 V, 300 °C heat-resistant
oven light bulb.
3. Refit the glass cover.


Dado

In order to help you turn on the oven you will need the oven manual. But as you have not provided the model number it is hard to advise which manual applies. You may want to visit this website and type the model number after you check it from the plate on the oven door. (side). AEG Service Support User Manuals

OR
if in Australia
AEG Service Support User Manuals

unscrew the glass cover, then unscrew the bulb, buy a new one of the same type then screw it in and screw the glass cover back in over it.

what type of oven isthis and model , can you get to the bulb, is it broken inside the socket ?

Cover pulls off easily with fingertips - don't be scared, it's very tough! Bulb then is removed by pulling downwards - do not twist!