The wiper arm nuts on the front wipers may be insufficiently tight. If the movement of wipers is restricted by an external load, such as a build-up of heavy snow on the windscreen, the wiper motor torque may exceed the wiper arm slipping torque, and one, or both, of the wipers could become inoperative. If this occurs, driver visibility could be reduced, which could lead to an accident.
The recall affects left hand drive vehicles, produced between 2005 – 2011.
Source: Alert 5/2013 A12/0166/13