Two problems related to engine and engine cooling have been reported for the 2009 Subaru Impreza Wrx. The most recently reported issues are listed below.
I bought my Subaru in February of 2013 with approx 75000 miles on the odo. I believe the defect had already been there when I bought it and I hadn't noticed it until it got slightly worse. The brake pedal and the clutch flexes when I press either of them. Pressing the clutch will move the brake pedal in the down position approx. 1/3 of an inch same with the brake pedal. The welds connecting the pedal bracket to the firewall are not welded correctly. It needs to be reinforced by something else to assure me that the clutch and the brake pedal will not move whilst driving. It scares me to drive my vehicle to and from work because of the possibility that these welds will break. Which will make me unable to press either pedal and I could lose my ability to clutch and brake. Which could result in me going 70mph possibly (interstate speeds) into another car or obstacle. Or simply rear ending someone in traffic or rolling back into them being unable to brake. If this bracket breaks off of the bulkhead/firewall I will have no brakes or clutch then my car becomes a public safety issue. Someone or people could get hurt if this happens and it could.
09 Subaru wrx with broken welds on the firewall. This is causing a loud popping when the clutch is depressed. Clutch is getting harder to depress.