Mercedes-Benz Emissions Parts Warranty Settlement — Get Reimbursed for Out-of-Pocket Repair Costs
By Steve Levine
Published: March 10, 2026
Claim Deadline: May 15, 2026 (for pre-notice repairs)
Payout: 50% reimbursement for repairs / 100% reimbursement for diagnosis
Proof required: Yes — repair invoices and proof of payment needed
What Is This Settlement About?
If you own or lease a 2015 or newer Mercedes-Benz and paid out of pocket to fix certain engine or emissions-related parts, Mercedes-Benz may owe you money.Here is the background: California law (and laws in 16 other states that follow California's emissions standards) requires automakers to cover certain "high-priced" emissions parts under warranty for 7 years or 70,000 miles, whichever comes first. These are parts that are critical to controlling vehicle emissions and are expensive to replace. This extended warranty is called the High-Priced Parts (HPP) Warranty.
The lawsuit alleged that Mercedes-Benz failed to properly classify 14 specific parts in its vehicles as "high-priced emissions parts" even though they should have been covered under the HPP Warranty. Because Mercedes did not classify them correctly, owners who needed these parts repaired after their standard 4-year/50,000-mile warranty expired — but before 7 years/70,000 miles — were forced to pay out of pocket for repairs that should have been free under the emissions warranty.
Mercedes-Benz denies all allegations and denies any wrongdoing. The court has not determined who is right. The parties agreed to settle to avoid the costs and risks of further litigation.
Under the settlement, Mercedes-Benz will reimburse owners 50% of out-of-pocket repair costs and 100% of diagnosis-only costs for these 14 parts. Going forward, Mercedes will also cover these parts under the full 7-year/70,000-mile emissions warranty.
Do I Qualify?
You qualify if all of the following are true: you own or lease a model year 2015 or newer Mercedes-Benz vehicle (not electric), your vehicle was registered in one of the 17 covered states, you paid out of pocket to diagnose, repair, or replace one of the 14 covered parts listed below, the repair was done at an authorized Mercedes-Benz service center (dealership or authorized service center), and the repair occurred after your vehicle's 4-year/50,000-mile standard warranty expired but before 7 years/70,000 miles.Even if you have not yet paid for a repair, you still benefit from this settlement. Going forward, Mercedes-Benz will cover these 14 parts under the full 7-year/70,000-mile warranty at no cost to you.
Which Parts Are Covered?
The settlement covers 14 specific emissions-related parts:• Manifold PCV Connection Assembly
• Power Train Control Unit (PCM)
• Accelerator Pedal Sensor
• Accelerator Pedal
• Partial Load Operation Crankcase Ventilation Valve
• Clean Air Line
• Pressure Sensor Downstream of Air Filter
• Check Valve within the EVAP System
• Crankcase Ventilation System
• Vent Control Valve
• Charcoal Canister
• Fuel Tank Level Indicator Fill Level Sensors
• Coolant Thermostat
• ESP Electronic Stability Program Control Unit
If you are not sure which part was repaired on your vehicle, check your repair invoice from the dealership. It should list the specific part that was diagnosed, repaired, or replaced.
Which States Are Covered?
The settlement covers Mercedes-Benz vehicles registered in 17 states that follow California's emissions warranty standards. The model year coverage start date varies by state:• Model Year 2015+: California, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Washington
• Model Year 2022+: Colorado
• Model Year 2025+: Minnesota, Nevada, Virginia
If your vehicle was not registered in one of these states, you are not included in this settlement.
How Much Money Will I Get?
The payout depends on what type of work was done and what you paid:For repairs (parts replaced or fixed): You can receive 50% reimbursement of your out-of-pocket costs, including parts, labor, and diagnosis.
For diagnosis only (you got the car checked but did not have the repair done): You can receive 100% reimbursement of your out-of-pocket diagnosis cost.
The settlement does not have a fixed fund or cap — Mercedes-Benz is required to pay every valid claim based on the actual amounts documented. Your payment amount depends entirely on what you paid.
What Do I Need to File?
You need to submit a claim form along with supporting documents including an itemized repair invoice showing which covered part was repaired or diagnosed, proof of your payment (credit card statement, receipt, or invoice showing zero balance), proof that you owned or leased the vehicle at the time of the repair, and proof that your vehicle was registered in one of the 17 covered states.What About Future Repairs?
Even if you have not paid for a repair yet, you benefit from this settlement. Going forward, Mercedes-Benz will provide 100% warranty coverage for all 14 covered parts on eligible vehicles for the full 7-year/70,000-mile period. If one of these parts needs repair in the future (within the warranty window), take your vehicle to an authorized Mercedes-Benz service center and the repair should be covered at no cost.What Are the Important Dates?
Claim Deadline (pre-notice repairs): May 15, 2026
Claim Deadline (post-notice repairs): Within 60 days of the date of repair
Notice Date: March 16, 2026
Opt-Out / Objection Deadline: April 30, 2026
Final Approval Hearing: June 25, 2026 at 1:30 PM PT, Courtroom 3, 17th Floor, San Francisco Courthouse
What Happens If I Do Nothing?
If you do nothing, you will not receive any reimbursement for past repairs. You will still be bound by the settlement and give up your right to sue Mercedes-Benz over the same claims. However, you will still benefit from the going-forward warranty coverage on the 14 covered parts.Case Information
Caption: Hazdovac v. Mercedes-Benz USA, LLC et al., Case No. 3:20-CV-377
Court: U.S. District Court for the Northern District of California
Judge: Chief Judge Richard Seeborg
Defendant: Mercedes-Benz USA, LLC
Class Counsel: Pomerantz LLP (Jordan L. Lurie, Ari Y. Basser)
Attorney Fees: Up to $2,812,500 (paid by Mercedes-Benz, not the class)
Claim: Failure to classify 14 emissions parts as high-priced parts under California HPP Warranty (CCR Title 13 §2035)
How Do I Find Class Action Settlements?
Find all the latest class actions you can qualify for by getting notified of new lawsuits as soon as they are open to claims:Official Settlement Notice (PDF)
Settlement Website: Hazdovac Emissions Warranty Settlement
Submit Claim
Sources
• Official Class Action Admin Site• Court-authorized settlement notice (reviewed March 2026)
Filing Class Action Settlement Claims
Please note that your claim form will be rejected if you submit a settlement claim with any fraudulent information. By providing this information and your sworn statement of its veracity, you agree to do so under the penalty of perjury. If you are not sure whether you qualify, visit the class action administrator's website. OpenClassActions.com is a consumer advocacy and class action news site, and is not a class action administrator or a law firm.
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Pre-Qualify| Mercedes-Benz Emissions Parts Settlement Summary | |
| Status | Open — Filing Claims Now |
|---|---|
| Claim Deadline | May 15, 2026 (pre-notice repairs) / 60 days from repair (post-notice) |
| Opt-Out / Objection Deadline | April 30, 2026 |
| Final Approval Hearing | June 25, 2026 at 1:30 PM PT (San Francisco) |
| Repair Reimbursement | 50% of out-of-pocket costs (parts, labor, diagnosis) |
| Diagnosis Reimbursement | 100% of out-of-pocket diagnosis costs |
| Covered Parts | 14 emissions-related parts (PCM, thermostat, EVAP, PCV, etc.) |
| Who Qualifies | 2015+ Mercedes owners in 17 covered states who paid for repairs between 4yr/50K mi and 7yr/70K mi |
| Website | Hazdovac Emissions Warranty Settlement |