How can blueberry stains be removed without much effort?

and it probably wont be between the high heat and the chemical s you either bleached out or removed the protective covering / causing your stain

Hi Dixie, you can most definitely run the cleaning cycle. Make sure you remove any cleaner that may have been used to remove the blueberries. We do not advise to use any chemicals on the inside of the Oven.

Use DeBruce Polish on GLASS. Make sure the stains are NOT inside the "sandwich"
DeBruce Polish Non Toxic All Metal Multi Surface Cleaner debrucepolish...

the yellowish "staining" is a result of a bad seal. Since it is heat changing the color of the surface, you would probably have to do some damage to remove the discoloration, either like a soft abrasive scrub or other, bleach will not fix that.
Sounds like the cleaning cycle could be too long or otherwise too hot for too long? Perhaps a wipe down with a damp cloth to the interior of the oven prior to a self clean to remove any loose material may help.. Also if there are any other vents for this oven (say under one of the burners of the stove top) make sure they are kept free and clear of any blockage of air flow..
Best regards
Ck

try using a ceramic hob specific scraper to removed the burnt on bits then use a ceramic hob cleaner.
Can you let me know what country you are in and I can send you alternative links.
The following link are for the uk.
https://www.bosch-eshop.com/eshop/bosch/gb/ceramic-hob-cleaning-1.htm
311299 is the most cost effective as it contains cleaner and scraper.

If your oven is not a glasstop and is the colour WHITE there is a ceramic touch up you can buy, this paint is high temperature and can be used to cover chipped areas easily. the part number is 12W. If you do not want to paint over these stains I would try a heavy degreaser called spray nine. if your stains are caused by heat warping or changing the tops structure you may have a temperature issue.hope this helps.

Thanks

this is common its called vapor lock look for screws holding in the glass if none are found there is a rope looking seal around it take a hook or pliers and remove it the glass will come out you can clean in between it and put it back fairly easily.

Try a mild abrasive cleanser like Bon Ami or Soft Scrub and wipe clean.  

first its a whole lot of effort for very little return second there are two 100 pieces of glass in there and three it will just do it again but if you still want to reply with the brand and model number ill give you the procedure most of the time its backed on and leaves a stain even after cleaning