My 2000 1.4 petrol polo struggles to start when warm and sometimes will not start, until the engine has cooled down a bit, when the engine is on the hot side of warm.
Embarrassingly, I have lived with this issue for quite a number of years because 75% of the time the places I am going will mean I am away from my car for sufficient time for the engine to cool down. Another 15% of the time, I am driving a short enough distance that the engine will not be too warm for this to be a major problem (the car might start after 1, 2 or 3 times). The rest of time I leave it running if I am in and out of some place in a few minutes. I know, as I said, embarrassing. I have cut out twice in traffic after long driving but luckily the car started after 6 and 3 tries respectively. In these cases where it struggles to start, the starting sound is not the same as when the engine is cold and doesn't inspire confidence. I know nothing about cars.
Anyone know where to start with diagnosing this issue?
Edit: Forgot to mention, car always starts when engine is cold.