I am having problem with my Altis 1.6 2018 which I purchased in September 2018. Problem is hard starting. The car starts fine in morning but it cranks 4 to 5 seconds long if we start after 1 hour or after 30 minutes. It even starts fine if we start after few seconds. The car is under warranty and I went to dealership numerous times. They just check the fuel pressure which is usually normal. They also checked the injectors which were ok. Finally they opened the fuel pump assembly and replaced fuel pump after argument. THe possible problem was that rings of fuel pump were leaked and they replaced with new fuel pump and rings. Although the car's starting was fine for few weeks but slowly the problem occured again. The car is under warranty and it will expire in September 2020. I want to ask that what should I do. Fuel filter still not checked. Spark plugs are also fine. Any professional experienced person who could guide me?