Engine Stalling

Yesterday I started up my d, back out of my driveway and when I started to go forward again it stalled. No indications of anything going wrong, just a dead engine. After letting it warm up a bit it ran fine for the rest of my trip. Thought it was a bit weird that there was no warning/caution/advisary messages. Later that day started it up and it was idling really rough jumping up and down 3-400 RPM. Let it warm up a bit and it smoother out and ran fine. This morning started it and it ran a couple seconds and died. Started again and it was running really rough again. If I touched the throttle at all it would die. After dying a couple times I finally get a SES light. Let it warm up again and the idle smoothed and it seem to run fine.

It has been a bit colder here but in the mornings its about 40deg in my garage so I doubt it's cold related. I did fill it up a day before it started to act up but the fact it runs fine after warming up makes me think it's not the fuel. I plan on taking it into the dealer if they ever are available. Anyone else have any issues like this?

Sounds like a possible fuel filter problem e.g. clogged. 40 degrees shouldn't be a problem for the fuel. If you have a BT tool connect it and read the engine code.

48a9
4c4e

Can't find a reference for those codes. Call your dealer they can probably tell you what they mean, or better yet take it in, it's under warranty.

Dealer visit. Let us know. BTW..You're not running a tune are you?

Looking at where you are located I would bet bad fuel.

HS

Originally Posted by HoustonScott

Looking at where you are located I would bet bad fuel.

HS

Manhattan KS, Iraq? Where the hell is THAT?

Originally Posted by BMWTurboDzl

Dealer visit. Let us know. BTW..You're not running a tune are you?

No tune. Dropped it off today. It has been fine the last two days. Still on the same tank of gas. Hopefully they find something. The 328ix loaner I have is pretty darn boring.

On a side note I notice a pump in the rear is always running after I shut the car off. Normal?

Originally Posted by HoustonScott

Looking at where you are located I would bet bad fuel.

HS

Originally Posted by ProRail

Manhattan KS, Iraq? Where the hell is THAT?

I would imagine the fuel here in Kansas is just fine.

The pump you hear is the fuel transfer pump. It should run perhaps but briefly when you turn your car off, and shut off when sytem is pressurized enough, which should be very briefly.

If you are not reaching pressure you must have some sort of leak to return most likely, so it is just dumping the fuel back to the tank.

It is possible this low fuel pressure is causing your engine to stall or lose power.

SA called and said they order a couple parts, fuel pressure sensor and a EVC/EVR? cannister. Not sure on the second one. Hopefully that does the trick.