Paul Harvey

Hi guys new to this website and after some advice, I've a Audi a3 2014 saloon, the engine management light is stuck on & glow plug light flashing,there seems to be a crackling noise under the car through the exhaust when is stationery & is now stalling after a couple of seconds of running,I managed to video this but won't let me upload & can't book it in for a diagnostic until there open tomorrow ,any advice is grateful
thanks