Mazda Valve Stem Seal Class Action Settlement

Claim Form Deadline: October 8, 2025
Payout: Varies
Proof Required: No

What is the Mazda Valve Stem Seal Class Action Settlement?

Mazda has reached a settlement in a class action lawsuit regarding certain 2021-2022 Mazda vehicles that are alleged to have defective valve stem seals, causing excessive oil consumption. The issue stems from faulty exhaust-side valve stem seals, which have since been addressed through a design modification.

The settlement applies to specific Mazda models equipped with 2.5-liter turbocharged engines, including the CX-30, CX-5, CX-9, Mazda3, and Mazda6. Owners and lessees of these affected vehicles may be eligible for several benefits, such as:

• Replacement of defective valve stem seals
• Extension of the powertrain warranty from 60 months/60,000 miles to 84 months/84,000 miles
• Reimbursement for out-of-pocket expenses for frequent oil changes or oil refills

While Mazda denies any wrongdoing, they have agreed to the settlement to resolve the dispute and provide compensation to affected customers.

Who is Eligible for a Payout?

To qualify for compensation, you must meet the following criteria:

• Own or lease (or have previously owned or leased) a 2021-2022 Mazda vehicle with a 2.5-liter turbocharged engine that has the defective valve stem seals.
• The affected models include:
  • 2021-2022 Mazda CX-30
  • 2021 Mazda CX-5
  • 2021 Mazda CX-9
  • 2021-2022 Mazda3
  • 2021 Mazda6

Which Mazda Vehicles Are Included?

The following Mazda models, identified by their VIN range and production dates, are included in the settlement:

Model	VIN Range	Production Dates
2021 Mazda3 (Japan built 2.5T)	JM1BP315204 – JM1BP403637	October 12, 2020 – September 13, 2021
2021-2022 Mazda3 (Mexico built 2.5T)	3MZBP209389 – 3MZBP307372	December 8, 2020 – June 16, 2022
2021-2022 Mazda CX-30 (2.5T)	3MVDM233598 – 3MVDM437812	December 7, 2020 – June 30, 2022
2021 Mazda6 (2.5T)	JM1GL602506 – JM1GL618909	October 6, 2020 – September 14, 2021
2021 Mazda CX-5 (US/Canada spec 2.5T)	JM3KF320280 – JM3KF472324	October 6, 2020 – September 13, 2021
2021 Mazda CX-9 (US/Canada spec 2.5T)	JM3TC509027 – JM3TC541070	October 6, 2020 – September 13, 2021
2021 Mazda CX-5 (Canada/Mexico spec 2.5T)	JM3KF112005 – JM3KF135036	October 6, 2020 – September 1, 2021
2021 Mazda CX-9 (Canada/Mexico spec 2.5T)	JM3TC451418 – JM3TC455173	October 6, 2020 – September 11, 2021

What Benefits Are Available?

Eligible vehicle owners and lessees may receive the following benefits:

• Valve Stem Seal Replacement: Affected vehicles will have the defective valve stem seals replaced, subject to conditions.
• Extended Warranty: Mazda will extend the Powertrain Limited Warranty from 60 months/60,000 miles to 84 months/84,000 miles.
• Reimbursement for Oil Changes and Oil Purchases: If you had to change your oil more frequently or purchase additional oil due to the oil consumption issue, you may be eligible for reimbursement.
• Loaner Vehicles: If your vehicle requires repair, loaner vehicles will be provided, subject to dealer availability.

How Much Can I Receive?

The amount you receive will depend on the benefits you qualify for. Key benefits include:

• Replacement of defective valve stem seals.
• Reimbursement for any additional oil changes or oil purchased due to the defect.
• Extended warranty protection.

How Do I File a Claim?

To file a claim, follow these steps:

1. Submit a Claim Form: Complete and submit the claim form by October 8, 2025.
2. Provide Documentation: If you’re requesting reimbursement for oil changes or oil purchases, include supporting documentation.
3. Identify Your Vehicle: You will need to provide the VIN (Vehicle Identification Number) of your affected Mazda vehicle or use a Unique ID if you received one.

If you are submitting claims for multiple vehicles, a separate claim form must be submitted for each one.

Do I Need Proof to File a Claim?

Yes, if you’re claiming reimbursement for oil changes or additional oil purchases, you will need to provide supporting documentation. Otherwise, you may only need to submit the VIN of your affected vehicle.

Claim Form Website: MazdaValveStemSealSettlement.com

Please be aware that your claim form will be rejected if it contains fraudulent information. By submitting your information and your sworn statement of its accuracy, you are agreeing to do so under penalty of perjury. Submitting false information not only jeopardizes your claim but also affects others who are genuinely eligible for the settlement. If you are uncertain about your eligibility for this class action settlement, please visit the class action administrator’s website for more information. Note that NoProofClassActions.org participates in the Amazon affiliate advertising program, and this post may include affiliate links, which could result in us earning a commission if you make a purchase through those links.