[AdrianMG]

Hello,

i have a problem with my Mercedes GLK 2013 (X204) 220 CDI 4-matic 103 KW, when i drive normally and i press the gas pedal to overtake the front car, the fault engine light goes on and the car goes in limp mode.

i checked the errors and what i get is P0088FC The fuel pressure in the system is too high (attached image).

What can be the problem? Hopefully somebody can help me.

Manky thanks.

 

[Planethill]

Is that the only code, or are there others as well?

 

[AdrianMG]

Is that the only code, or are there others as well?

Only code.

 

[Planethill]

Attached is some info on the fuel system and limp home mode. I don't know much about diesels, but it appears there is a pressure sensor on the fuel rail, as well as in/near the fuel filter. There is also a test port on the fuel rail that you can attach a pressure gauge on. I would do that first, as then you will know if the "too high" reading from the sensors is real or imagined.

 

[MB1966]

Did this issue get resolved? I'm having the same problem!

 

[ianrandom]

Did this issue get resolved? I'm having the same problem!

Welcome to the forum. Can I recommend putting your vehicle model and year into your profile for us please? Complete your Profile