The official notice
Defect
Tenneco Automotive (Tenneco) is recalling certain Beck/Arnley Master Cylinders, part number 072-9831, sold as aftermarket or replacement parts for 2004-2018 Volkswagen Jetta, and 2012-2019 Volkswagen Beetle vehicles. The fluid seal crimp on the master cylinder may be insufficient, causing brake fluid to leak or the cylinder to come apart.
Safety Risk
If there is a brake fluid leak, it can reduce braking ability, increasing the risk of a crash.
Remedy
Beck/Arnley will notify the distributors that sold the master cylinders and will work with the distributors to notify the end users. Affected master cylinders will be exchanged for a new master cylinder (part number 072-9990), free of charge. The recall began October 30, 2020. Owners may contact Tenneco customer service at 1-800-625-9319.