On March 4, 2025, Judge Josephine Staton of the U.S. District Court for the Central District of California granted final approval to a nationwide settlement addressing defective fuel pumps in certain Mazda vehicles. This settlement is a significant win for over 1 million owners of nearly 631,000 Mazda vehicles built between 2017 and 2020, with an estimated value of over $172 million.

What’s Included in the Settlement?

• Free Repairs and Replacements: If your Mazda vehicle has a defective fuel pump, you can get it replaced at no cost. This applies to all affected vehicles, whether or not they were previously recalled.
• Extended Warranty: Mazda will provide a 15-year warranty on fuel pumps for over 510,000 additional vehicles that were not previously recalled but contain the defective Denso fuel pumps. For the 120,000 vehicles that were recalled and had their fuel pumps replaced, the warranty extends to 15 years or 150,000 miles.
• Additional Benefits: During repairs, owners are entitled to free loaner vehicles and towing services if necessary.
• Reimbursement Program: There is no cap on reimbursements for fuel-pump-related repairs, ensuring that owners can recover out-of-pocket expenses.

The Defective Fuel Pumps

The issue stems from fuel pumps manufactured by Denso, which contained a defective impeller. This impeller, made from material too porous to withstand its environment, can deform due to excessive fuel absorption, leading to rough engine running, difficulty starting the vehicle, and stalling. These defects have caused dangerous driving conditions and near misses reported by drivers.

In 2020, Denso recalled its defective fuel pumps, which were installed in over 2 million vehicles, including Subarus, Hondas, Mazdas, and Toyotas. Mazda followed with a recall in 2021 for nearly 120,000 vehicles but missed others. This settlement ensures all affected Mazda vehicles are covered.

Related Cases

This settlement is the third of four class actions against auto manufacturers with Denso-made fuel pumps. Our team is dedicated to holding car manufacturers responsible for their mistakes. We’ve secured hundreds of millions of dollars for our clients in recent fuel pump class action cases, addressing serious concerns about vehicle safety and the financial impact on consumers.

• Toyota and Denso: Resulted in an estimated $287 million in economic relief.
• Subaru and Denso: Provided an estimated $380 million in economic relief.
• Honda and Denso: Litigation is ongoing.

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