Hi guys, Im a new member on this site. Ive owned my 2005 MK5 Astra 1.7 cdti (80) for 2 years now and I am starting to develop some problems. Firstly, after driving into reserve and then filling up, I start the car fine and drive it perfectly however once I park it up and try starting it again it will not turn over. The fuel pump does not even engage (you normally hear it for 2-3 seconds when you switch on your ignition). It trys turning over but just does not start up. However, at times it does start if i keep pressing the accelarator. Other times, I just have to jump start it. Sometimes, it wont even start with cables and I just have to leave it till morning. I recently put a brand new battery into the car after the other failed this March and have also changed the alternator in April. Also another problem I have realised is that when I drive over 65 my engine light comes on and it decreases in power slightly. I rectify this problem by turning it off and on again. Please could someone advise me on these problems?
Additional info -
Millege is 140k and I last serviced it in January.
Thank you very much