Fuel is transferred from the LH side of the tank via siphoning. After the fuel returns from the FPR it enters the LH side of the tank, creates a low pressure siphon that draws fuel from the LH side of the tank to the RH. If that hose is disconnected (as many people mentioned above) then the siphon doesn't work. SO you will use all of the RH side (where the fuel pump is) and half(ish) of the LH side because it will slosh over to the RH side.
If you use the hidden menu fuel level display you'll like see 12L or so of fuel in the LH side when this situation occurs. IF you are able to whip the car back and forth you could likely slosh fuel back to the RH side and the car will then run proper as a test. But it's an easy fix/diag, just pop the cover off the LH tank cover and give it a look.
If you use the hidden menu fuel level display you'll like see 12L or so of fuel in the LH side when this situation occurs. IF you are able to whip the car back and forth you could likely slosh fuel back to the RH side and the car will then run proper as a test. But it's an easy fix/diag, just pop the cover off the LH tank cover and give it a look.
Comment