Mercedes 300 PCV valve in 30 minutes Home › Forums › Forum › Mercedes 300 PCV valve in 30 minutes This topic has 0 replies, 1 voice, and was last updated 3 years, 9 months ago by Mnemonics101. Viewing 1 post (of 1 total) Author Posts February 19, 2021 at 4:25 am #612 Mnemonics101Keymaster Mercedes c-300 and any that have electronic PVC valve that need to be replaced can be done without taking apart half the engine in about 30 to 60 minutes This topic was modified 3 years, 9 months ago by Mnemonics101. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In