99 mb e430--ive replaced the timing inspection cover gasket for an oil leak on 1998 Mercedes-Benz E430

but theres another leak above it does anyone know what it could be (irvtech) maybe filter neck or something ive overlooked or dont know about,please help cause im losing about a quart every 4-5 running hours and i dont want to fuk my engine up sincve its been good to me up until now.

Asked by for the 1998 Mercedes-Benz E430