Required for proper removing and installing of the special plastic oil drain plug (M14 x 1.5 x 22) at plastic oil pan.
The plastic plug is also used for the cam cover on diesel engine. For VW, Audi, Skoda, Seat 1.2, 1.4, 1.8, 2.0 TFSI
(oil drain plug) 1.6, 2.0 TDI (cam cover plug)