Engine nearly bogs out at light

[Tonyfsu21]

2011 E92 M3.
Location: SoFL Temp 70F
Miles: 14,200
DCT Tranny

So I'm at a traffic light and come to a stop. The RPMs going erratically from idle to 17-1800. The DCT shifts itself into neutral and the car starts to lose power nearly bogging out. I immediately shift the car back into Drive mode and hit the accelerator and keep the car from stalling out. WTF???? Only event moments before was a re-fuel from a Chevron station 93 octane fuel. Any ideas?

[kscarrol]

Bad fuel? But to be honest I am having similar issues with my '11 sedan. Thought it was bad fuel at first but I have filled up at three different stations and still have the issue on and off. Actually stalled a couple of times and came close a few just as you described. Going in for regular service soon so will have it looked at then...

[///M Power-Belgium]

Not normal,go to your BMW dealer ASAP !

[Tonyfsu21]

Thanks. I also should note I drive this car once every 2 weeks so I was thinking the gap between use has contributed to the stall? But nothing new with that, It's been sitting in my garage with little use since new and never had that issue before. I'm going to bring it in and will report back.

[IzzyGray]

Sounds like ICV issue which a few people have experienced. Mine sometimes idles erratically after fuel up.

[The Automotive Enthusiast]

Originally Posted by IzzyGray

Sounds like ICV issue which a few people have experienced. Mine sometimes idles erratically after fuel up.

+1

Idle Control Valve.

[Sandye90m3]

You know what's funny? I came back from a vacation trip in Canada for 2.5 weeks (car was sitting in the garage for the whole duration) and the moment I came back and drove the car a little bit it started to bog down. I didn't understand what was going on, for example when I went to take a sharp left turn onto the on-ramp, the car lost complete power as if the traction control interrupted for a good 2 seconds.

Ever since, nothing has happened so we shall wait out. If it is a ICV then it'll be $2000 out of the pocket. The car has been very reliable for the past 43K miles (5 years ownership), so spending that $2k isn't bad.

[Tonyfsu21]

Originally Posted by Lute

The car shifted into neutral by itself? Yikes

Maybe its DCT auto-protect, like Norton's anti-virus

Yeah. Twice. I am hoping that was just the computers reaction to something that could have been a safety hazard. The car has been sitting for a few days, I'm gonna give it another try before taking it in for a diagnosis.

[fastmike]

My car does the exact same thing, *only* after a fill up.

If it's the ICV shouldn't it happen more often?

Chatted with my mechanic he mentioned it could be related to the charcoal canister, so after you fill up it dumps more fuel into the engine causing it to run rich for a bit and sputter. (Or something like that)

Originally Posted by Rev ///Me

+1

Idle Control Valve.

[Tonyfsu21]

Originally Posted by fastmike

My car does the exact same thing, *only* after a fill up.

If it's the ICV shouldn't it happen more often?

Chatted with my mechanic he mentioned it could be related to the charcoal canister, so after you fill up it dumps more fuel into the engine causing it to run rich for a bit and sputter. (Or something like that)

Weird. Totally expected on a Kia (pick any model or year) but not a 75k BMW. FML

[BPMSport]

Not normal. Any check engine light or increased emissions error? Sounds like an ICV, but could be a number of different things.

fastmike: This is not normal, even after a fillup.

On a side note, post 4,000

[kscarrol]

In my case, no CEL or error messages. Will see if the car is throwing any codes when I bring it in for service...

[grantmax]

Originally Posted by fastmike

My car does the exact same thing, *only* after a fill up.

Same here. I thought it was because I overfilled the tank once but it happened again after my last re-fuel.

What if it's the ... (dun dun dun) ... fuel pump?

[fastmike]

I never said it was normal.

No check engine lights, and it's fine after 5 mins of driving. Only sputters the first mile or so after a fill up. Seems to be worse the emptier the fuel tank is.

Is it possible there's codes that don't trigger an check engine light?

Originally Posted by Mike Benvo

Not normal. Any check engine light or increased emissions error? Sounds like an ICV, but could be a number of different things.

fastmike: This is not normal, even after a fillup.

On a side note, post 4,000

[MrStinky]

My car has done this on day 1 ( first gas fill ) and for past 60k miles. Only on fill up. One time to point of engine stsllibg 3 times in a row after I left gas station. Completely fine and may not happen on all cars but if hours does it than IRS normal. I just sit for a minute before driving off after a fill with engine on and let it do its thing

[Tonyfsu21]

Originally Posted by Mike Benvo

Not normal. Any check engine light or increased emissions error? Sounds like an ICV, but could be a number of different things.

fastmike: This is not normal, even after a fillup.

On a side note, post 4,000

No check engine lights. Took the car out for a spin yesterday and it was perfectly fine. Def narrowed down to something involving the fuel up. Note: tank was (20) miles until empty and I put roughly 1/2 tank of fuel (93 octane, Chevron) in the tank shortly before the incident. I'm not taking the car into BMW because all they will do is tear my car apart to tell me they can't find anything wrong. IMHO it's more productive of me to try & re-create the scenario next time I need fuel.

[W///]

Originally Posted by Tonyfsu21

Weird. Totally expected on a Kia (pick any model or year) but not a 75k BMW. FML

Hate to break it to you, but if you were looking for reliability, you probably should have gone for the Kia and not the BMW, yet alone an M haha.

I've got a fund set apart for ICV or throttle valve actuator. Shouldn't have to, but I consider it a "not if, but when it'll fail" item.

[Tonyfsu21]

Originally Posted by W///

Hate to break it to you, but if you were looking for reliability, you probably should have gone for the Kia and not the BMW, yet alone an M haha.

I've got a fund set apart for ICV or throttle valve actuator. Shouldn't have to, but I consider it a "not if, but when it'll fail" item.

Ha! I've seen the door handle fall off a Kia so I will take my chances with the M any day!