* Low battery. A weak or dead battery can prevent the starter from turning over the engine. Cold weather can make this problem worse, as it can slow down the chemical reactions that take place inside the battery.
* Thick oil. When oil is cold, it's thicker and flows more slowly. This can make it harder for the starter to turn over the engine.
* Faulty glow plugs. Glow plugs help to warm up the engine before it starts. If the glow plugs are not working properly, the engine may not be able to start when cold.
* Fuel problems. If the fuel system is not working properly, fuel may not be reaching the engine at the right pressure or in the right quantity. This can also cause the engine to have difficulty starting.
If you're having trouble starting your 2003 Sprinter when cold, you should first check the battery. If the battery is weak or dead, you'll need to jump-start the vehicle or replace the battery. You should also check the oil level and the condition of the fuel filter. If there are any problems with the other items in the fuel system, you should replace them. Lastly, you should take the vehicle to a mechanic to see if the glow plugs are faulty.
