Hi everyone, I'm new here. Just bought a 2012 Fabia Greenline (on 22nd Dec 2017 from used car dealership in Watford). 30,000 miles on the clock. Four days after I bought it, I noticed problem with 5th gear where occasionally it's as if there is no 5th gear - feels like a solid block, won't go in at all. Then a minute or so later it's fine again. Longest it's done it for is a whole 10-minute journey on the dual carriage way where it wouldn't go into 5th at all and I had to drive in 4th the whole