Neoclassical and turbulent heavy impurity transport in tokamak core plasmas are determined by main ion temperature, density and toroidal rotation proﬁles. Thus, in order to reproduce experimental behaviour of W accumulation, integrated modelling of main ion heat and particle transport is a vital prerequisite. For the ﬁrst time, the quasilinear gyrokinetic code QuaLiKiz has been applied for successful predictions of core kinetic proﬁles in an ASDEX Upgrade H-mode discharge in the turbulence dominated region within the integrated modelling suite JETTO. Neoclassical contributions are calculated by NCLASS; auxiliary heat and particle deposition proﬁles due to NBI and ECRH prescribed from previous analysis with TRANSP. Turbulent and neoclassical contributions are insuﬃcient in explaining main ion heat and particle transport inside the q = 1 surface, necessitating the prescription of further transport coefficients to mimic the impact of MHD activity on central transport. The ion to electron temperature ratio at the simulation boundary stabilizes ion scale modes while destabilizing ETG modes when signiﬁcantly exceeding unity. Careful analysis of experimental measurements using Gaussian process regression techniques is carried out to apply reasonable values. In following trace W impurity transport simulations performed with additionally NEO, neoclassical transport under consideration of poloidal asymmetries alone is found to be insuﬃcient to establish hollow central W density proﬁles. Reproduction of these conditions measured experimentally is found possible only when assuming the direct impact of a saturated (m, n) = (1, 1) MHD mode on heavy impurity transport.