Air Flow Meters – Sotos Class Actions
Auto Parts Class Action

Air Flow Meters

This class action alleges that the defendants unlawfully conspired to rig bids for and artificially inflate the prices of air flow meters incorporated into new vehicles and sold to dealers and consumers across Canada from January 1, 2000 to March 1, 2010.

An air flow meter, otherwise known as a mass air flow sensor, measures the volume of air flowing into combustible engines, (ie. how much air is flowing through a valve or passageway). The air flow meter provides information to the vehicle’s electronic control unit in order to ensure that the proper ratio of fuel to air is being injected into the engine.


  • January 24, 2020 – The Denso defendants have agreed to settle this action for $150,000.00 . A Court hearing is scheduled for February 28, 2020 to approve this settlement. Click here to read the Notice.
  • January 24, 2020 – At the hearing on February 28, 2020, the Court will also be asked to approve a protocol for distributing settlement funds. Click here to read the proposed Distribution Protocol.
  • June 19, 2017 – the deadline for opting out of the class action has expired
  • May 1, 2017 – Justice Belobaba approved the settlement agreement entered into between the plaintiffs and Hitachi
  • May 1, 2017 – Justice Belobaba approved the payment of Class Counsel’s fees and disbursements
  • March 20, 2017 – Justice Belobaba certified the action for settlement purposes and approved the notice to the class
  • December 2, 2016 – the plaintiffs entered into a settlement agreement with Hitachi, Ltd., Hitachi Automotive Systems, Ltd. and Hitachi Automotive Systems Americas, Inc.

Settlement Agreements

Settlement Agreement with Hitachi dated December 2, 2016

Orders and Decisions

Order Re Distribution Protocol Approval dated February 28, 2020
Reasons of Justice Belobaba dated May 10, 2017 re: Hitachi Settlement
Order of Justice Belobaba dated May 1, 2017 re: Hitachi Settlement Approval

Notices to the Class

Notice of Hearing (EN, FR)
Hitachi –Notice of Consent Certification and Settlement Approval