You have the feeling, the inside of your washing machine smells? That can occur if you wash a lot at low temperatures and use a small amount of detergent. Unpleasant smells can then build up in the machine or your laundry. You should therefore wash regularly at 60º C or higher and also use the correct amount of detergent, in accordance with the manufacturer and amount of laundry.
In addition, we recommend you use washing machine cleaner tested by Bosch. Please also check the water discharge of the washing machine. Is everything properly tightened and no water run back into the machine? If you’ve excluded all these potential sources, your washing machine should smell normal again.