Fuel back to tank

[c200Kompressor]

Hello! Just wondering: can fuel get back to tank? I tried everything on my car and just left me this option!!! I say that because the engine, after get seat over night, takes a litte bit longer to start. And if i put it to work and immediatly shut it off, put it back working the car starts normally!!! MAF is fine, coils are fine...

 

[grober]

The fuel rail supplying all the injectors takes several seconds to reach operating pressure from sitting for a couple of hours. If you then restart quickly after stopping briefly there is still enough residual pressure in the system to start instantly. Teach yourself to wait 5-10 seconds after switching on the ignition/ fuel pump before turning the key further to start the car. The other possibility is your fuel filter needs changing.

 

[c200Kompressor]

The fuel rail supplying all the injectors takes several seconds to reach operating pressure from sitting for a couple of hours. If you then restart quickly after stopping briefly there is still enough residual pressure in the system to start instantly. Teach yourself to wait 5-10 seconds after switching on the ignition/ fuel pump before turning the key further to start the car. The other possibility is your fuel filter needs changing.

Thanks! But i have a C180 (from the same year but from 10/1997 so is the facelift), anyway this car never did this. The fuel filter was 15 000 but i dont now the brand...