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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