WRX Piston Detonation Lawsuit Seeks Class-Action Certification
A lawsuit says that the Subaru WRX suffers from sudden engine failure due to piston detonation, a well-known cause of damage to the piston and piston ringlands. The proposed class-action includes all current and former owners or lessees of the 2009-2018 Subaru Impreza WRX and WRX STI.
Subaru allegedly knew WRX and WRX STI components were defective in engines coded EJ255, EJ257 and FA20. The plaintiffs say engines should last at least 120,000 miles but the Subaru engines may last just half that time before they fail.
Get the full details on CarComplaints.com.
More information on carcomplaints.comRelated Subaru Generations
At least one model year in these 5 generations have a relationship to this story.
We track this because a generation is just a group of model years where very little changes from year-to-year. Chances are owners throughout these generation will want to know about this news. Click on a generation for more information.
3rd Generation Impreza WRX
- Years
- 2009–2011
- Reliability
- 10th out of 38
- PainRank™
- 1.7
- Complaints
- 10
4th Generation Impreza WRX
- Years
- 2012–2014
- Reliability
- 13th out of 38
- PainRank™
- 2.3
- Complaints
- 6
4th Generation WRX
- Years
- 2015–2016
- Reliability
- 35th out of 38
- PainRank™
- 13.79
- Complaints
- 60
5th Generation WRX
- Years
- 2017–2020
- Reliability
- 14th out of 38
- PainRank™
- 2.5
- Complaints
- 15
4th Generation WRX STI
- Years
- 2015–2016
- Reliability
- 8th out of 38
- PainRank™
- 0.82
- Complaints
- 3