Friends,

I have a vehicle Mercedes-Benz model C280 Sport (gasoline) and I am having the following problem:

Always when I am with approximately 1/4 of the tank, I have dry breakdown, in other words, the car fails, but when I put 1 or 2 liters, he works until burning him/it put and it fails again.

Like this, I went until my mechanic and we measured the fuel pump, she presented to be normal, when verifying the two fuel sending unit of the it hits, they are also normal, but even so I am with gasoline on a side of the tank and of the other no.

What can that be? how can I solve?

 

very common problem.

the jet suction of fuel transfer is clogged or too restricted.

replace or repair (make the hole bigger) it.

 

Friend,

Could you be more necessary in which place meets that jet suction of fuel transfer?

thankful

 

sorry i got no picture of it.

you need to lift the car and work underneath.

make sure your fuel is almost empty to avoid draining too much fuel.

remove both fuel level sensor, pull everything out.

you will now see the jet suction pump.

the hole must be restricted. blow it out with compressed air.

if it still don't work, replace it.

 

Friend, thank you very much for his/her attention.

Concerning that problem, my mechanic will remove the tank today to discover that detail that you guided us well.

Do excuse if it is taking his/her time a lot, but could he/she ask for one more help?

It is that my car is also the whole time making the noise of operation of the Vacuum Supply Pump, interesting that all of the functions of the doors and of the air conditioning of the panel they are usually working, and even so the piece is the whole time working. What can be? Could you explain to me how it works and which the exact points what should verify? that is, she exist leak which you/they are the specific places that can cause such problem.

Thank you.