Lead: In Madison, Wisconsin on Monday, Mercedes-Benz USA and parent Daimler AG agreed to pay $149.6 million to resolve multistate allegations that software in diesel vehicles was used to pass emissions tests but allowed higher pollution during normal driving. State attorneys general say more than 211,000 diesel passenger cars and vans made between 2008 and 2016 contained the software devices, producing excess nitrogen oxides (NOx). The agreement — announced by a coalition of 50 attorneys general, including the District of Columbia and Puerto Rico but not California — includes payments, consumer relief and reporting obligations and remains subject to court approval.
Key Takeaways
- The settlement totals $149.6 million; $120 million is payable to the states and $29 million is suspended and may be waived if consumer-relief conditions are met.
- Authorities say Daimler-equipped more than 211,000 diesel passenger cars and vans from 2008–2016 with software that limited emission controls during regular driving, increasing NOx emissions.
- About 40,000 vehicles still required repair or removal from the road as of the Aug. 1, 2023 cutoff; eligible owners can receive $2,000 each for approved software fixes and an extended warranty.
- The settlement requires Mercedes to meet reporting requirements and refrain from deceptive marketing or sale practices regarding diesel emissions compliance.
- Daimler AG and Mercedes-Benz USA previously paid $1.5 billion in 2020 to resolve related federal and California claims; Volkswagen paid about $2.8 billion in its criminal resolution.
- The agreement was negotiated by a coalition of 50 attorneys general, explicitly excluding California from this multistate action.
Background
Diesel emissions scandals have reshaped regulatory oversight and corporate compliance in the auto industry since the mid-2010s. Regulators focus on nitrogen oxides because NOx contributes to ozone formation, smog and respiratory illness; emissions-testing regimes aim to ensure real-world tailpipe outputs meet legal limits. In many jurisdictions, automakers are expected to design vehicles that comply across lab tests and everyday driving; allegations that companies used software to alter performance during tests undermines that expectation and public trust.
The Mercedes settlement follows earlier legal actions: in 2020 Daimler AG and Mercedes-Benz USA paid $1.5 billion to resolve claims with the U.S. government and California regulators over diesel emissions. The current multistate case centers on devices that prosecutors say optimized emissions controls during testing but curtailed those controls on the road, producing elevated NOx. That pattern echoes the broader dieselgate era, when regulators and courts pursued both civil and criminal remedies and ordered consumer remedies, recalls and compliance changes.
Main Event
On Monday the coalition said Mercedes will pay $149.6 million to resolve the remaining state-level claims tied to diesel emissions. Under the terms publicized by the attorneys general, $120 million will be distributed to state enforcement actions; an additional $29 million payment is suspended and could be waived depending on completion of a consumer relief program. The consumer relief element targets roughly 40,000 vehicles that had not been repaired or permanently removed from use by Aug. 1, 2023.
Eligible owners of those vehicles can receive $2,000 each if they install approved emissions-modification software and accept an extended warranty tied to the fix. The settlement also imposes reporting obligations on Mercedes and a prohibition on future unfair or deceptive marketing or sales claims about diesel vehicles and emissions compliance. Officials said the agreement resolves remaining state lawsuits, but it must still be approved by a court before it becomes final.
Mercedes-Benz released a corporate statement saying the deal will resolve outstanding U.S. diesel-related legal proceedings while reiterating the company considers the allegations unfounded and denies liability; the company also stated it had made sufficient provisions for the settlement cost. The multistate announcement emphasized that California did not join this particular coalition, though California had been part of earlier federal-state action resolved in 2020.
Analysis & Implications
Legally, the settlement closes a multistate enforcement chapter while leaving intact the broader regulatory legacy of diesel testing controversies. The amounts involved — $149.6 million here and the prior $1.5 billion federal/California resolution — reflect a pattern in which regulators seek both consumer remediation and deterrent payments without necessarily pursuing individual criminal liability in each case. For regulators, the case underlines the difficulty of proving corporate intent and the tradeoffs in settling complex technical claims.
For consumers and public health, the relief program matters because NOx has measurable effects on respiratory health and air quality. The $2,000 payments for roughly 40,000 owners address a subset of vehicles still on the road but will not reverse historical emissions already released. Environmental advocates will likely press for stronger oversight of on-road emissions testing and continued scrutiny of how automakers calibrate emissions controls under different driving conditions.
Financially and reputationally, the settlement is modest relative to Daimler’s size but significant as another public acknowledgment of emissions compliance problems across the industry. It also reinforces precedent set by large penalties in earlier cases, including Volkswagen’s roughly $2.8 billion criminal-related payment, signaling that regulators will continue to use civil settlements and remediation to address misconduct. The ruling may prompt automakers to invest more in test-cycle integrity and transparent reporting to avoid future enforcement actions.
Comparison & Data
| Case | Year | Settlement/Payment |
|---|---|---|
| Daimler / Mercedes-Benz (multistate) | 2024 | $149.6 million |
| Daimler / U.S. & California | 2020 | $1.5 billion |
| Volkswagen (criminal-related) | 2016–2017 | ~$2.8 billion |
The table places the new payment in context: the 2024 state-focused settlement is considerably smaller than the 2020 federal/California resolution but follows the same enforcement arc. Combined, these penalties and remediation plans illustrate how regulators stagger remedies across jurisdictions and over time, often combining consumer relief with state fiscal recoveries and compliance mandates.
Reactions & Quotes
We will resolve these remaining U.S. proceedings while continuing to dispute the underlying allegations, and we have reserved for the cost of the agreement.
Daimler AG (company statement)
This settlement secures recovery for states and a targeted consumer relief program for owners of affected vehicles.
Multistate Attorneys General Coalition (official announcement)
NOx emissions have proven public-health impacts; settlements can provide remediation but do not substitute for stronger on-road emissions verification.
Environmental health researcher (academic)
Unconfirmed
- Whether any individual company executives will face personal liability or criminal charges in connection with these specific multistate allegations remains unannounced and unconfirmed.
- The precise per-vehicle average increase in NOx emissions attributable to the software in normal driving across the entire 211,000-vehicle pool has not been published in the states’ announcement.
- Long-term fleet-wide emissions impacts and the share of affected vehicles still operating after Aug. 1, 2023 beyond the reported ~40,000 are not fully quantified in the public statement.
Bottom Line
The $149.6 million agreement resolves the latest round of state-level legal claims that Mercedes-Benz and Daimler AG used software to limit emissions controls during ordinary driving. The deal combines direct state recoveries with conditional consumer relief for roughly 40,000 vehicles that remained unrepaired as of the announced cutoff, and it imposes reporting and marketing restrictions on the automaker.
While the amount is smaller than prior federal and California penalties, the settlement reinforces the regulatory message that testing integrity and truthful emissions claims are enforceable obligations. For consumers, environmental groups and regulators, the case underscores the ongoing need for robust on-road testing, transparent corporate disclosures and remedies that prioritize public health and consumer redress.