How do you depressureize the fuel system?

[bmwannabe]

Im putting in new fuel injector seals, anyone know how to go about depressureizing before i go blind with 93 octane?

[rs4pro3]

Unplug the battery and let it set for a day or so. I've never had a problem with fuel squirting unless you just cranked the car a couple minutes earlier.

[nando]

pull out the fuel pump relay, start the car, it'll die once the fuel pressure runs out.

[bmwannabe]

good call, thanx

[randomtask37]

just for future reference, where is that relay?

[DaN]

It should be under the black plastic cover on the drivers side in the engine compartment.
It should be in the middle of two other relays, at least thats how mine is. Yours could be set up a little different.

I would just start the car and pull it, if it dies right away its the wrong one, if it takes about 10 seconds for it to die, you found it.

[chesster6969]

I remove the fuse to the fuel pump instead. Then I turn on car and let it die. THere's still going to be some pressure left though so be careful.