Transport CanadaCritical
Defect
On certain vehicles, the bolt for the 48 V ground connection may not have been tightened properly. As a result, the wiring could overheat and melt.
Safety Risk
Wiring that overheats and melts can create the risk of a fire.
Remedy
Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to inspect and, if necessary, tighten the ground connection.
1,784 vehicles affectedMfr ref: 5491318Updated June 10, 2026