I have a 99 C230K and it takes about 3-4 seconds to start. But during cold outside temperatures my car starts up almost perfect. Once it takes me 3-4 seconds to turn on my car and then i turn it off, it will start up fine if turn it on within 15 mins. Might sound a little bit confusing but any suggestions will be appreciated.


Can it be the MAF, Or Fuel Filter or the IAT?

 

Fuel pressure regulator?

 

Is that an simple thing to do or do i need an expert to change it?