Same problem as OP - 2010 Skoda Roomster Diesel SE with 100,000 on the clock. Starts fine most of the time but lately been doing it more and more not wanting to start, but eventually does. The fuel pump clicks before starting so don't think it's that. Charge the battery up every week (reads 12.3 idle and 11.9 when starting up) although battery around 7 years old. Yesterday it just wouldn't start at all - even jump starting it took a couple of minutes to fire into life. It seems to be just not wanting to fire up but when started it needed to be revved up for a bit to "catch". Once going it was fine and subsequent tries when I got home started no problem! After reading much on this forum the fuses have been checked, etc and the one thing I have read is about the battery needing to be in tiptop condition for starting! Can you let me know your thoughts?
Also the driver and back seat electronic windows are the only ones that work - the passenger side and back seat windows are completely dead. Anyone have any clues on this one. Thanks,