maybe someone had such a thing or have suggestions that they can make such a sound it appears only at a cold start and mainly when it's cold outside from the moment I bought the car, I hear this sound Car is the Megane 3 rs 2013year https://youtube.com/shorts/Xpyw5xDCBZY?feature=share
Sound like a moped in the distance and then realised it was the car! Fuel pump is in the rear, water pump is mechanically driven, do you have washer fluid and is the pump stuck on?
water pump new !! I also changed all the belts the washer is not turned on but there is water in the barrel