Misfires across all cylinders

[M3BatMobile]

2011 M3 w/175k already on my 3rd set of actuators. Last one installed at 131k. It was a rebuilt set.

The car is at a very qualified Porsche mechanics garage. He's don't a lot of work for me but not on the engine.

Question: what other possible cause should we think about. The actuators are at the top of my mind, anything else?

[tdott]

Read the codes and report back, it could be anything.

[M3BatMobile]

Mechanic has this and professional scan tools. Figured I'd see if anyone had this problem and it turns out not to be actuators?

Fault code: 00277B
Fault code: 002B36
Fault code: 002B37
Fault code: 002B38
Fault code: 002B3A
Fuel cap message
Details:
DMTL reference current : 45080 DMTL minimum current : 2579 DMTL filtered pump current : 44032 tank level : 31367
Misfiring with shutdown cylinder 2
Details:
Engine speed at dropouts : 64520
relative filling in dropouts : 27393
Ignition Zyl. 2 at dropouts : 1024
Integral Ionenleitwert Zyl. 2 at dropouts : 0
Misfiring with shutdown cylinder 3
Details:
Engine speed at dropouts : 64520
relative filling in dropouts : 27392
Ignition Zyl. 3 with dropouts : 43520
Integral Ionenleitwert Zyl. 3 with dropouts : 0
Misfiring with shutdown cylinder 4
Details:
Engine speed at dropouts : 64520
relative filling in dropouts : 27392
Ignition Zyl. 4 at dropouts : 44544
Integral Ionenleitwert Zyl. 4 at dropouts : 0
Misfiring with shutdown cylinder 6
Details:
Engine speed at dropouts : 64520
relative filling in dropouts : 27393
Ignition Zyl. 6 at dropouts : 256
Integral Ionenleitwert Zyl. 6 at dropouts : 0

Fault code: 002B3C
Fault code: 002B41
Fault code: 002B57
Fault code: 002796
Fault code: 002B35
Misfiring with shutdown cylinder 8
Details:
Engine speed at dropouts : 64520
relative filling in dropouts : 27393
Ignition Zyl. 8 at dropouts : 512
Integral Ionenleitwert Zyl. 8 at dropouts : 0
Misfiring with shutdown more cylinders
Details:
Engine speed at dropouts : 64520
relative filling in dropouts : 27392
Ignition Zyl. 1 with dropouts : 0
Integral Ionenleitwert Zyl. 1 with dropouts : 0
Engine emergency program activated
Details:
Engine speed : 64520 relative charge : 27392 Battery voltage KL87 : 36096 Security Concept Cause : 0
Engine emergency program activated
Details:
Engine speed : 64520 relative charge : 27392 Battery voltage KL87 : 36096 Security Concept Cause : 0
Misfiring with shutdown cylinder 1
Details:
Engine speed at dropouts : 16142
relative filling in dropouts : 55040
Ignition Zyl. 1 with dropouts : 32512
Integral Ionenleitwert Zyl. 1 with dropouts : 0

[TX]

One other thought.... Any chance this happens right after a fill up of gas?
fuel tank breather valve if so...

if not, How old is your battery? I'd probably start there. Unlikely to be a bad set of actuators again.. (3rd) set you said? Also it wouldn't be all 8 coil packs gone at the same time. I'd start with the battery load test.

[M3BatMobile]

Yes it did happen after a fill up!
Right at the gas station pumps.
Thank you will have the tech start there
I'll keep you all posted

[C-los]

The dmtl pump is also know as the leak detection pump (test for fuel tank vapor leaks by filling the tank system with air, and measuring the pressure drop). They aren't uncommon to go out... I'd start with fixing that, checking the charcoal canister for clogging, and have him smoke test the system for leaks...

Clear codes and adaptations, test drive and report back

Los

[MisterClutch888]

following, my friend has a similar issue.

[amrazM]

fuel vent valve below the plenum, start there

[M3BatMobile]

Thanks for the tips. Ordered a fuel tank breather valve. Will keep you posted. Should arrive and be installed this week

[M3BatMobile]

Happy thanksgiving everyone and ty for your help. Got the car back yesterday after having the fuel tank breather valve replaced. Happy to report all is well. Smoother faster start, no codes, host of small noticeable improvements in the engine feel. At idle the engine no longer dips and the feeling of sometimes wanting to stall is gone. 👍🏼👍🏼

[TX]

Originally Posted by M3BatMobile

Happy thanksgiving everyone and ty for your help. Got the car back yesterday after having the fuel tank breather valve replaced. Happy to report all is well. Smoother faster start, no codes, host of small noticeable improvements in the engine feel. At idle the engine no longer dips and the feeling of sometimes wanting to stall is gone. 👍🏼👍🏼

Fantastic man! Glad it worked out for you.
Cheers!