i have a 2012 x5 msport 30d e70 and two months ago the fuel return from 

the injectors blew off where it joins the T piece next to dipstick sleeve

was under warranty but garage just kept on putting pipie back on 

after several recoverys i have it in at my local bmw guru 

has anyone came across this issue if so how did you remedy it 

thanks derek

Hi Derek Welcome to the Forum

My first though is somewhere the return line is blocked/restricted, I don't have a diesel but even the petrol models have a fuel return with a fuel return valve. Worth checking if yours has a fuel return valve and if it's working? Also check the fuel filler cap is correct for the car 

Let us know what they find

Dave

3 hours ago, Greydog said:

Hi Derek Welcome to the Forum

My first though is somewhere the return line is blocked/restricted, I don't have a diesel but even the petrol models have a fuel return with a fuel return valve. Worth checking if yours has a fuel return valve and if it's working? Also check the fuel filler cap is correct for the car 

Let us know what they find

Dave

yes i have had the car a year no blockages 

biggest problem is that when it blows off it throws up 

same faults down to low fuel pressure 

next step is to have injectors tested 

thanks for the input

If the pipe is blowing off something is causing excess pressure, either a fault in the high pressure pump a blocked or damaged pipe or a connection is damaged. It doesn't make sense to just refit the pipe if it keeps blowing off?? I would at a minimum be changing the return pipe blocked/faulty injectors would have been causing all sorts of other issues.