Mercedes‑Benz EQS Lemon Law: Defects, Recalls & Your Rights

Name: Mercedes-Benz EQS
Brand: Mercedes-Benz

A detailed lemon law guide for Mercedes‑Benz EQS owners — learn the common defects, recalls, TSBs, and how to pursue repurchase or replacement.

Model years covered: 2022-2024

About Mercedes-Benz EQS Lemon Law Claims

The Mercedes‑Benz EQS is Mercedes’ flagship electric luxury sedan, packing a large battery pack, advanced thermal management, and the MBUX Hyperscreen infotainment system. Since its 2021–2022 market debut, early owner reports and dealer repair records have shown concentrated problems tied to the vehicle’s complex electrical architecture, battery/charging systems, air suspension, and sophisticated software stack. Many of these issues are not purely cosmetic: they can affect range, charging reliability, steering and braking behavior, and driver information presentation.

Because the EQS integrates multiple new technologies (high-voltage battery chemistry and cooling, high-power onboard chargers, distributed electronic control units, and the huge Hyperscreen), warranty and software updates have been frequent. Owners facing repeated repair attempts for charging faults, thermal shutdowns, persistent infotainment failures, or air suspension faults should document repairs carefully: those defects commonly trigger lemon law claims in states with strong consumer protections. This guide summarizes the most common defects reported to NHTSA and owner forums, outlines recalls and TSB activity, and explains typical legal outcomes and state-specific notes for pursuing a lemon law remedy.

Mercedes-Benz EQS Lemon Law Statistics

Estimated Annual Claims: 1,200
Success Rate: 85-95%
Average Settlement: $20,000 - $60,000
Most Common Outcome: Vehicle Buyback / Repurchase or Replacement with Equivalent Model

Known Mercedes-Benz EQS Defects

High-voltage battery / charging failures (high severity, 2022-2024): Owners report intermittent charging interruptions, sudden reductions in usable range, and in some cases battery thermal management events that lead to charging rate limits or temporary shutdowns. Issues have stemmed from battery thermal sensor/calibration errors, inverter/charger software mismanagement, and vehicle-to-charger communication faults (ISO 15118/CHAdeMO/CCS negotiation). NHTSA Complaints: 780. Symptoms: Charging stops abruptly or refuses to accept high-rate DC fast charging, Dashboard warnings about battery temperature or charging fault, Noticeable sudden drop in estimated range after driving or charging, Vehicle limits top charging rate and goes into limp/limited mode.
MBUX Hyperscreen and instrument cluster software glitches (medium severity, 2022-2024): The EQS’s expansive Hyperscreen (multi‑panel OLED surfaces and shared compute) has exhibited persistent software bugs: frozen screens, incorrect vehicle state displays, loss of rear camera feed, and unresponsive climate/seat controls tied to the infotainment host. Many fixes require re-flashing multiple ECUs or full software re-installs. NHTSA Complaints: 1,250. Symptoms: Infotainment or instrument display freezes or reboots while driving, Climate controls unresponsive via touchscreen, Missing/incorrect instrument readouts (speed, charge level), Occasional loss of backup camera or ADAS HUD elements.
Airmatic/air suspension failures and ride-height faults (high severity, 2022-2024): Reports indicate leaking air struts, failing air compressors, or faulty height-level sensors that cause incorrect ride height, sagging, or the vehicle’s inability to enter low/high ride modes. These failures can impair ride control, clearance, and — in borderline cases — vehicle handling if height is asymmetric. NHTSA Complaints: 320. Symptoms: Car sits noticeably lower at one corner or the entire rear, Warning message about suspension fault or 'reduced driving performance', Compressor runs excessively or cycles frequently, Loss of adaptive ride modes or inability to level after load change.
Regenerative braking / electric brake control inconsistencies (high severity, 2022-2024): Some EQS owners report unexpected variations in regen strength, abrupt transitions between regenerative and hydraulic braking, or electronic parking brake faults. These issues are often traced to software calibration between the brake-by-wire system, regen strategy, and ABS/ESC modules. NHTSA Complaints: 220. Symptoms: Sudden changes in deceleration feel when lifting off the accelerator, Reduced or uneven regenerative braking response, Warning about brake system or automatic hold malfunction, Electronic parking brake not engaging or failing to release.

Mercedes-Benz EQS Recall History

Total recalls: 3

Mercedes‑Benz has issued a handful of targeted recalls for early EQS model years addressing both hardware and software safety risks. Recall campaigns have covered specific components such as electric parking brake control modules, affected suspension fasteners/air lines, and software updates to address ESC/ABS integration with brake-by-wire systems. Several recalls were limited to certain production batches where supplier-sourced hardware or incorrect software calibration could result in degraded braking or suspension performance. Many of the campaigns required dealer software reprogramming or replacement of affected modules.

View all Mercedes-Benz recalls and NHTSA safety alerts

Technical Service Bulletins (TSBs) for Mercedes-Benz EQS

Technical Service Bulletins (TSBs) for the EQS have been relatively frequent as dealers encounter new failure modes. TSBs commonly instruct dealers to perform multi-ECU software flashes, recalibrate battery thermal sensors, update charging stack firmware, and replace specific air suspension components for persistent leak or compressor issues. Other TSBs provide diagnostic trees for Hyperscreen freezes and outline steps for preserving owner data while performing full system re-installs. Because the EQS integrates many distributed controllers, several TSBs emphasize synchronized updates across gateway, infotainment, power electronics, and chassis modules.

Class Actions & Litigation: Mercedes-Benz EQS

As of mid-2024 there were multiple reported individual lemon law claims and demand letters from EQS owners to Mercedes‑Benz dealers and MBUSA; these have resulted in some buybacks and settlement agreements at the state level. There has not been a widely publicized nationwide class action solely focused on the EQS (unlike broader manufacturer cases), but regional firms have advertised lemon law services for EQS owners and a small number of state-level suits have been filed alleging repeated failures to repair charging, suspension, or critical software defects. Many disputes have been resolved through buybacks, replacements, or cash settlements negotiated pre‑litigation.

State Lemon Law Notes for Mercedes-Benz EQS

California: California's Song‑Beverly Consumer Warranty Act is one of the strongest lemon law regimes: a 'presumption' of a lemon can arise after two repair attempts for a life‑threatening defect or four attempts for other defects within the vehicle’s warranty period, or if the vehicle is out of service for a cumulative total of 30 days. EQS owners with repeated charging, braking, or suspension failures should document repair orders and mileage; many California claims end in repurchase or replacement.
Texas: Texas law requires the vehicle to be purchased or leased in Texas and still under the manufacturer's express warranty when the claim is made. A presumption of a lemon is typically available after four repair attempts for the same defect, or 30 cumulative days out of service within the first 24 months or 24,000 miles. Keep detailed repair records for EQS charging or software faults to preserve a claim.
New York: New York’s lemon law provides a presumption in favor of the consumer after a reasonable number of repair attempts — commonly four attempts or 30 days out of service within the first two years or 18,000 miles. Owners should notify MBUSA and their dealer in writing and retain all service records, particularly for recurring high-voltage battery, charging, or suspension problems.

Frequently Asked Questions: Mercedes-Benz EQS Lemon Law

How many repair attempts qualify the EQS as a 'lemon'?

There's no universal number — it depends on state law. Many states use a presumption standard (e.g., 2 attempts for life‑threatening defects or 4 attempts for other defects, or 30 cumulative days out of service). For EQS-specific problems like charging failure or suspension faults, document every repair visit and consider sending a written demand for repair to the manufacturer if issues persist.

Will a dealer software update fix Hyperscreen freezes or charging issues?

Sometimes. Many EQS problems are addressed by multi‑ECU software updates or recalibration. However, repeated software flashes without durable repair (or when hardware is the root cause) may support a lemon law claim. If the same defect returns after several dealer attempts, escalate in writing and retain all software update records.

Can I get my EQS repurchased if the battery won't fast charge reliably?

Potentially. Charging reliability is a core function for an EV: repeated failures that materially impair the vehicle's use, value, or safety can form the basis of a lemon law claim. Success depends on the number of repair attempts, documentation, warranty status, and your state's lemon law rules.

Are safety-related suspension or brake faults treated differently?

Yes. Many states treat safety-related defects (brakes, steering, suspension) more favorably: fewer repair attempts are needed to establish a presumption of a lemon. Because air suspension or brake-by-wire faults affect driving safety, prioritize written notifications and prompt dealer visits, and keep detailed records.

What documentation is most important when pursuing a lemon law claim for an EQS?

Keep repair orders with dates, mileage, descriptions of complaints and repairs, any loaner/transportation records, dealer diagnoses, software update logs, and all written communications with the dealer or MBUSA. Photos or videos of symptoms (sagging suspension, frozen screens, error messages) and correspondence about repeated failures strengthen claims.

References & Sources

NHTSA - Vehicle Recalls and Complaints (Mercedes‑Benz EQS) — NHTSA
2022 Mercedes‑Benz EQS First Drive and Review — Car and Driver
Mercedes‑Benz EQS Owner Complaints and Forum Discussions — Edmunds (owner reviews)
Lemon Law for Electric Vehicles: When to Seek Repurchase — Lawyers & Settlements