Mercedes-Benz Actros 930-934
What the hazard is
There is a possibility of oil contacting hot engine components. There is also a possiblility of a short circuit occuring should the wire harness chafe on a mounting bracket.
What to do
Letters will be sent to affected owners. Owners are advised to contact their authorised Mecedes-Benz dealership to have the closing plug replaced with a modified type and a protective cover fitted to the mounting bracket, free of charge.
Defect
In extreme cases the oil dipstick tube closing plug may leak. It is also possible that the engine wiring harness may chafe on a mounting bracket.