This bulletin applies to 2017-2023 Subaru Impreza, 2018-2023 Crosstrek, 2019-2022 Forester, 2020-2023 Outback and Legacy and 2019-2023 Ascent vehicles. Customers may have a concern about surface rust accumulating in the top center retaining nut area of the front struts. The strut mount cap-seal shape has been changed and reinforced to provide improved sealing against water intrusion (outside diameter increased by 30mm, from 64mm to 94mm). The new design dust seals are available as P/N 20326FL001.
The repair, if desired, involves thoroughly cleaning and the application of rust-preventative paint to the top steel portion of the strut mounts. Two recommended products include Rust-Oleum “Stops Rust” spray enamel P/N 7779830 or Kryon “Tough Rust” spray enamel P/N K09202007. Remove the original dust cap and mask the area around the top portion of the strut mount. Use a wire brush to remove surface rust/debris, followed by 150-180 grit Scotchbrite (green) abrasive pad. Blow the area clean. Wipe with mild solvent or a clean shop towel and allow to dry. Apply the anti-rust coating and install the new/larger dust seal caps.
