Sold as spares and repairs/as seen. Doesn't start, will need to be towed away. Suspected boost leak. Could hear whistling on acceleration before lost power. New calipers all around in the past 18 months. MOT until September 2026 Engine code P0299 The P0299 code on an Audi A3 2.0 TDI means "Turbocharger/Supercharger "A" Underboost," indicating the turbo isn't building enough boost, common due to vacuum leaks, a sticking turbo actuator (VNT vanes), faulty N75 valve, boost pipe issues, or a bad MAP sensor, leading to reduced power and limp mode; diagnosis involves checking vacuum lines, inspecting the actuator/vanes, and smoke testing for leaks to find if it's air/vacuum related or the turbo itself.