Mercedes-Benz Settlement: Owners Get Reimbursed for Emissions Part Repairs

Mercedes-Benz has agreed to a $2.8 million settlement after a class action lawsuit alleged the automaker hid emissions parts that should have been covered under warranty — forcing owners to pay out of pocket for repairs that should have been free.

The lawsuit, Hazdovac v. Mercedes-Benz USA, LLC, claims Mercedes failed to properly classify 14 specific emissions-related parts as "high-priced" parts under California's emissions warranty regulations. Under state law, those parts should have been covered for 7 years or 70,000 miles. Instead, owners were stuck with the bill after their standard 4-year/50,000-mile warranty expired.

Mercedes-Benz denies any wrongdoing but agreed to settle.

Who qualifies

You may be eligible 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 17 covered states: California, Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, Minnesota, Nevada, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia, or Washington. And you paid out of pocket to diagnose, repair, or replace one of the 14 covered parts at an authorized Mercedes-Benz service center between your vehicle's 4-year/50,000-mile and 7-year/70,000-mile warranty period.

The 14 covered parts include the Powertrain Control Unit, Coolant Thermostat, ESP Electronic Stability Program Control Unit, Crankcase Ventilation System, Charcoal Canister, Accelerator Pedal Sensor, and several other emissions-related components.

What you could get

Under the settlement, Mercedes-Benz will reimburse 50% of out-of-pocket repair costs and 100% of diagnosis-only costs for qualified claims. There's no cap mentioned on individual reimbursement — it depends on what you paid.

Even if you haven't had a repair yet, the settlement also requires Mercedes-Benz to cover these 14 parts going forward at authorized service centers for the full 7-year/70,000-mile warranty period at no cost.

How to file

You have until May 15, 2026 to file your claim. Claims can be submitted online through the official settlement website.

Download ClassyAction to file your claim in minutes and get a reminder before the deadline.