Won't start ........

[D34noafc]

Now then I own a 330d auto (57)

On way home from work zero miles on range and left me bank card at home anyway got home and got it but ended up on a work call outside house and being such an idiot I had car ticking over....conked

Had rac out as it won't re-start - cranking over ,plenty of fuel, fuel pump sending fuel but for some reason it's not getting to engine.

Any ideas ?

[thatdude]

Isnt there a low pressure fuel pump then a high pressure fuel pump?

[Pica-Pica]

I am surprised. I know another manufacturer has a ‘level road run dry restart test procedure’ to verify it can restart when out of fuel. I have had that test done many times on that manufacturer’s diesel and petrol engines.

[D34noafc]

I was surprised aswell

To be honest I'm not sure if he could be arsed but I'm not clued up enough to really get everything he was doing
I did notice it said rail pressure fault on his computer

[D34noafc]

Think it's got mechanic baffled aswell now

Are there any owners with suggestions or similar problems ?

Thanks

[Richard-D]

These engines won't generally self bleed. After changing fuel filters (or otherwise introducing air into the system) I have always needed to bleed the fuel system with diagnostic equipment. This runs the low pressure pump for a couple of minutes to get fuel to the high pressure pump on the back of the block.

Edit: If I had to do this without the diagnostic kit I'd probably access the feed to the pump and supply power directly.

[helix402]

Richard-D said:

These engines won't generally self bleed. After changing fuel filters (or otherwise introducing air into the system) I have always needed to bleed the fuel system with diagnostic equipment. This runs the low pressure pump for a couple of minutes to get fuel to the high pressure pump on the back of the block.

Edit: If I had to do this without the diagnostic kit I'd probably access the feed to the pump and supply power directly.

Never had to bleed a modern BMW after a fuel filter change. Ign on runs the pre supply pump, that normally does the job.

Used to run 12v to the M51s fuel pump fuse sometimes after a filter change but never had problems on the post M57 ones.

[Pica-Pica]

Our requirements (another manufacturer) were:

“When starting a green engine in the assembly plant or an in-service engine after refueling when a run-dry condition has occurred, total crank time to start shall not exceed 30 seconds or the time allotted on the final assembly line whichever is less (A special tool to pre-prime the system in the assembly plant is permissible).”

So for us, a vehicle whose engine had run-dry should be able to restart with a refill of 4 litres of fuel (to accommodate US gallons).

I do not know what BMWs are tested to achieve (and I am not trying mine!).

[Richard-D]

helix402 said:

Never had to bleed a modern BMW after a fuel filter change. Ign on runs the pre supply pump, that normally does the job.

Used to run 12v to the M51s fuel pump fuse sometimes after a filter change but never had problems on the post M57 ones.

N47 and 57 I don't even bother trying without the diagnostic kit now due to not having any luck the first 2 or 3 times.

[D34noafc]

Has the car 3 days now he's usually on the ball with them but still not back or any solution.......worried