Already in the third minute, Ilestedt opened the scoring when she was carefully in front of the front post.
With half an hour played, 20-year-old Sydney Lohmann nodded in 2-0 for Bayern.
The uphill became even steeper for Hoffenheim when Fabienne Dongus took two yellow cards within four minutes and was sent off.
Then the hill Carina Wenninger made it 3-0 in the 79th minute and shortly afterwards also came 4-0 by Viviane Asseyi.
After six rounds played, Bayern Munich is undefeated in the Bundesliga.
Thus, they are alone at the top of the table when Wolfsburg today crossed away against Freiburg.