[Model: w124-atw-m]

Nut for the drive shaft
The nut must be replaced each time the drive shaft is removed. This is a locknut whose sheet metal collar is driven into the notches of the drive shaft with a chisel, etc. It is not advisable to reuse the old part, as the locking function of the used part is no longer guaranteed.
Our opinion: for 3.99 Euro/piece the risk is is more trouble thn it´s worth.