2011 r56 cooper s failing to start

[andrew]

help please !

107k miles, serviced religiously, no previous issues ( other than a few corroded lights )

drove to work ok 8am fine

started at 5pm and ran at a fast idle, not responsive to throttle, died after 15 seconds

repeated this twice

fourth time onwards, it makes all the right noises, but just won't quite fire up : it's SO close to doing so

breakdown recovery chap flummoxed. suggested flooding or dodgy fuel

any suggestions gratefully received

thank you !

[rigga]

High pressure fuel pump.

Would be my guess.

[andrew]

rigga said:

High pressure fuel pump.

Would be my guess.

my thanks
would it run at all if it were the fuel pump ?
or is it possible for the pump to run weakly rather than just fail ?

[rigga]

Intermittent cold start is the normal first signs, direct injection requires pretty high pressure, normally on idle my reading is in the range of 700psi, HPFP fail pretty regularly unfortunately.

[andrew]

rigga said:

Intermittent cold start is the normal first signs, direct injection requires pretty high pressure, normally on idle my reading is in the range of 700psi, HPFP fail pretty regularly unfortunately.

thanks
pita that the garage are fully booked for four weeks !

[andrew]

rigga said:

High pressure fuel pump.

Would be my guess.

and your guess was entirely correct thank you
now back on the road with a huge thanks to matt, ben and colleagues at autowerx