davej100

I have done some further testing of the alternator and it is a smart one. It only puts out power as required. Starting the car and just revving the engine did not initiate any power output and voltage stayed at 12.6V but switching the headlights on and voltage went to 13.3V. Heated screen and seats pushed it up to 14.9V. So it seems that the alternator is not dead. I don't know if it should start charging sooner. Maybe it would if the battery voltage fell below 12.6V.

Timeline of events About 8 weeks ago - Occasionally EPC light would come on and car would go into limp mode sometimes associated with EML and sometimes with a stop/start error on MFD but never any error codes. A restart would clear fault. About 6 weeks ago - Fitted new battery which seemed to fix the problem for a few weeks until A few days ago - Problem re-appeared with same symptoms. Battery voltage was down to 12.3 so charged battery overnight and it was ok for a couple of days until Yesterday - Problem re-appeared but this time would not clear on a restart. Also error code was generated saying open circuit injectors 1 and 4. AA man turned up and checked some connections which seemed OK but this action seemed to cure the problem. Today - Checked voltage of battery which was 12.4 with engine off. Started car and revved it but voltage did not change. No lights on dash and no error codes. Is this all caused by one fault somewhere or do I have several faults? Do I have a faulty alternator, a faulty battery, bad wiring or some ecu problem? Car is 2017 Yeti 1.2TSI on 44,000 miles. Any advice would be gratefully received.

Thank you very much. Do I get a prize? Love the term necroposter

Haven't you explained to them that elephants go in the trunk?