A great amount of additional force is required to unscrew and screw in the socket (attachment
1, arrow 1) on the trailer coupling.
Preload on the tensioning plate (attachment 1, arrow 2) of the trailer coupling applied incorrectly
Adjust the spring preload of the tensioning plate by bending the tensioning plate slightly in the
direction of the arrow (attachment 2)
车型系列：[E70]
发动机系列：[ALL]
车身形式：[ALL]
故障代码：[]
生产工期：-