Lieff Cabraser is investigating multiple complaints about sudden vehicle battery failures across the Mercedes-Benz line. Reports include sudden drastic battery failures including in Class S, Class C, Class G, GLE (once Class M), and Class E vehicles. Owners and lessees across the U.S. report leaving their cars for several hours without any lights or electronics on, only to return and find the Mercedes car battery completely drained.
As the Mercedes-Benz battery drains can occur without warning, drivers may be unexpectedly stranded and placed in perilous situations. They also report having to repeatedly pay out-of-pocket for costly diagnostics, software updates, and battery replacements, none of which remedy the problem. These complaints date as far back as 2004, and continue through 2020 model year MB vehicles.
A second defect has been alleged relating to Mercedes-Benz vehicles with 48V/12V battery hybrid systems. The defect causes vehicles to shutoff, overheat, go into limp home mode, or lose acceleration at highway speeds. This defect is said to affect 2019-2021 model year Mercedes-Benz vehicles including GT-Class, GLS-Class, GLC-Class, C-Class, CLS-Class, E-Class, and GLE-class M-B hybrids.
Note: if your complaint is about mold in the climate control system of your Mercedes-Benz vehicle, please visit this link instead. Thank you.
If you own or lease a Mercedes-Benz vehicle and have experienced the sudden total battery drain or other battery failure, we welcome the opportunity to speak with you about your car. There is no charge for our review of your Mercedes batteries defect case, and all information you provide will be held in strictest confidence.