Mercedes-Benz Lemon Law California

Mercedes-Benz lemon law claims in California are filed under the Song-Beverly Act against Mercedes-Benz USA. Mercedes does not participate in BBB Auto Line; California claims proceed to civil litigation without arbitration prerequisites. Common qualifying defects include MBUX infotainment failures, EQE/EQS battery and software issues, AIRMATIC and Active Body Control suspension failures, 48V mild-hybrid system issues (M256 inline-6 platform), Sprinter chassis defects (when sold as Class B/C RV chassis), diesel emissions/AdBlue issues, and DPF/regeneration failures.

 

 

Notable Mercedes-Benz Pattern Defects

  • MBUX infotainment. System crashes, Hey Mercedes voice failures, screen freezes.
  • EQE / EQS. Charging issues, software glitches, range inconsistencies.
  • AIRMATIC and Active Body Control. Air-suspension compressor failures, leaking struts.
  • 48V mild-hybrid (M256/M254 platforms). 48V belt-starter generator issues.
  • 9G-TRONIC 9-speed transmission. Shift quality.
  • DEF / AdBlue system. Diesel emissions sensor failures.
  • OM651 / OM654 diesel. EGR cooler, turbo issues.
  • Sprinter chassis defects. Particularly when sold as RV chassis.
  • BlueTec emissions. Historical issues with regen and limp mode.

 

 

Models Covered

  • A-Class, C-Class, E-Class, S-Class, CLA, CLS, GLA, GLB, GLC, GLE, GLS, G-Class, SL, AMG GT
  • EQB, EQE, EQS, EQE SUV, EQS SUV
  • Sprinter, Metris
  • AMG performance variants of all model lines

 

 

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About the Author

Julian McMillan is the founder of McMillan Law Group and a California lemon law attorney with over 25 years of legal experience, having represented San Diego consumers since 2000. He has been named a Thomson Reuters Super Lawyer twelve consecutive years (2014–2025), recognized by the National Trial Lawyers as a Top 100 Civil Plaintiff Lawyer, and listed in San Diego Magazine’s Top Attorneys in San Diego (2016–2025) and America’s Most Honored Professionals (2018–2025).

Julian holds an L.L.M. from the University of San Diego School of Law, an L.L.M. from Nottingham Law School (England), an L.L.B. with Distinction from the University of Exeter (England), and a B.A. (Honors) from the University of Victoria (Canada). He is admitted to the California Bar, the U.S. District Courts for the Southern, Central, and Northern Districts of California, and the Supreme Court of England and Wales. Before founding McMillan Law Group he practiced at DLA Piper (San Diego) and Ashurst Morris Crisp (London).

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