(Reuters) -Germany said on Monday that the United States would have to follow through on agreed lower tariffs on Europe-made cars before a wider agreement on trade can be finalised in writing.

"In particular, car tariffs must be reduced quickly as agreed. We are also aware of the considerable burden on the export-orientated economy. ... Our role here is to continue to fully support the European Commission in this process," a German government spokesman said in a press conference.

The European Union and the United States struck a framework trade deal in late July with many key details yet to be clarified.