How does one know if their car was already serviced by the ABC recall for our cars? Does MB keep and track the VIN number or is it a visual id that the service mechanic/ DIYer needs to see?

I have a weeping line and not sure if my car was serviced under the recall. Is there an expiration of when these recalls can be honored?

 

If preformed at a factory run service facility it will be included in your service history.

 

The ABC line was just replaced with another crappy MB line so it's not going to matter.