* Low battery: When the engine is cold, it requires more power to start than when it's warm. If the battery is low, it may not be able to provide enough power to start the engine quickly.
* Thick oil: When the engine is cold, the oil is thicker and flows more slowly. This can make it difficult for the oil to reach the engine's bearings and other moving parts, which can cause them to wear out prematurely.
* Faulty spark plugs: Spark plugs are responsible for creating the spark that ignites the fuel in the engine. If the spark plugs are worn out or faulty, they may not be able to create a strong enough spark to start the engine.
* Faulty fuel injector: Fuel injectors are responsible for delivering fuel to the engine's cylinders. If the fuel injectors are clogged or faulty, they may not be able to deliver enough fuel to the engine to start it.
If your car is experiencing a long turnover when it's cold, it's important to have it checked out by a mechanic to determine the cause and get it fixed as soon as possible.