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Mazda TSB #09-008/22
2021 Mazda MAZDA3
TSB Document:
Affected Component: EQUIPMENT
- Summary
- Some vehicles may exhibit water leaking into the passenger compartment from the rear door through the bottom of the service hole behind the rear door trim during rain or when washing the vehicle. This is caused by one of the following: *Since the material of the seal rubber is not resistant to surfactants, the rubber deteriorates when the vehicle is washed and allows water to penetrate into the seal rubber of the service hole cover. *The lower tabs of the service hole cover may not have been completely engaged at the factory. To eliminate this concern, the seal material of the service-hole cover has been changed (Japan built Mazda3) and a mass production change will be implemented in the future (Mexico built Mazda3 and CX-30).
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