After Ertugral started his tenure on a promising note by beating Kaizer Chiefs and Orlando Pirates, City went on a downward spiral.
Having failed to win their last nine Premier Soccer League matches, City are 13th on the table with just two points better than SuperSport United who are at the relegation cutoff point.
They last tasted victory in January and were also knocked out of the Nedbank Cup in the Round of 32 by Sekhukhune United.