The final PDF does not have the links for the Acknowledgement, Abstract, Kurzfassung, List of Tables and Figures.
\documentclass[12pt,a4paper]{scrartcl}
\usepackage{tocloft}
\usepackage{hyperref}
\usepackage{cleveref}
\begin{document}
\section*{Acknowledgement}
\section*{Abstract}
\section*{Zusammenfassung}
\clearpage
\tableofcontents
\newpage
\addcontentsline{toc}{section}{\protect\numberline{}{Acknowledgement}}
\listoffigures
\newpage
\addcontentsline{toc}{section}{\protect\numberline{}{Abstract}}
\listoftables
\newpage
\addcontentsline{toc}{section}{\protect\numberline{}{Zusammenfassung}}
\addcontentsline{toc}{section}{\protect\numberline{}{Table of Contents}}
\addcontentsline{toc}{section}{\protect\numberline{}{List of Figures}}
\addcontentsline{toc}{section}{\protect\numberline{}{List of Tables}}
\newpage
\pagenumbering{arabic}
THIS IS TEXT OF ZUSAMMEFASSUNG: Lorem ipsum dolor sit amet, consetetur
\clearpage
\tableofcontents
\newpage
\addcontentsline{toc}{section}{\protect\numberline{}{Acknowledgement}}
\listoffigures
\newpage
\addcontentsline{toc}{section}{\protect\numberline{}{Abstract}}
\listoftables
\newpage
\addcontentsline{toc}{section}{\protect\numberline{}{Zusammenfassung}}
\addcontentsline{toc}{section}{\protect\numberline{}{Table of Contents}}
\addcontentsline{toc}{section}{\protect\numberline{}{List of Figures}}
\addcontentsline{toc}{section}{\protect\numberline{}{List of Tables}}
\newpage
\pagenumbering{arabic}
\section{Introduction}
TEXT INTRO: Lorem ipsum dolo
\end{document}

\addcontentslineentries, which are also on the wrong locations? – Heiko Oberdiek Jun 10 '15 at 09:29