I have a '95 polo 1litre, as i was coasting along i saw the rev needle drop to zero and it didnt start when tried straight after.after some things were tried,i put petrol in and it fired up straight away.at first i just thought the petrol needle wasnt reading right as it was 1/4 tank low and behold same happened again, after fillin it up 25£ of petrol, i drove maybe 10miles and bam,my engine cut out for same reason. im not sure if petrol needle is workin correctly,but im pretty sure it is.i cant smell petrol either. any ideas of what the problem is??