Cold start question

[beemer22]

Hey all its been a few years since I have posted on here. So the M3 usually gets taken out of the garage once every two weeks on the nice days and lately when I do the first initial start it does not fire it just will sit there cranking but then the second time it fires up like a champ and will be fine all day long! Everything is charging right lights come on radio works and I can hear the fuel pump prime up and everything. Now I had this same issue with my 328is awhile back and I was told it was the boots from the coils that go to the spark plugs and i did that and if I remember right it never worked out heh I think i just gave up and put up with it till it was sold. Thanks for your time

[MauiM3Mania]

Next time you try to start after an extended break, try turning the key to 2, and allow the fuel pump to prime itself.

After a few seconds, turn to 3 to engage starter. I'm thinking your system is losing pressure over time and needs to re-prime.

[MisterM]

Originally Posted by MauiM3Mania

Next time you try to start after an extended break, try turning the key to 2, and allow the fuel pump to prime itself.

After a few seconds, turn to 3 to engage starter. I'm thinking your system is losing pressure over time and needs to re-prime.

I think you hit that one right on the head.

My M sits for a few weeks at a time when I drive my pickup. If the first time... I jump right in and try to fire it up (e.g. Key to 2 pos. and immediately to 3) the car will crank but not start until I release it and try again.

After prolonged breaks...If I place the key place to 2, wait 10 seconds, than proceed to start, the car fires right up.

Hope this helps,
M