[MasterZ]

On the way to work.. Taking off at a red light, CEL came on, lost power, Message came up about reduced power drive-train issue... . Turned around made it back home. Engine was struggling to idle at lights, shifted into neutral it would run smoother. Taking off it was way down on power. Sometimes it was like it didn't wanna shift, would let off the accelerator and then it would shift. around 30mph it would shake. I drove home slow and babied it...

So where do I start, to diagnose or look

2014 535i Msport RWD, N55 8-speed 110k miles

These are the codes I am getting (Bimmer-link)

Error Memory
140010 misfire, multiple cyl detected
140610 misfire cyl 6 detected
140001 misfiring, multiple cylinders, injection switched off
140601 misfire cyl 6 injection is switched off
11A002 High Fuel Pressure, plausibility, pressure to low
140510 Misfire cyl 5 detected
140310 Misfire cyl 3 detected
140210 Misfire cyl 2 detected
140410 Misfire cyl 4 detected
140004 Misfiring, multiple cyl, harmful to exhaust gases
140505 Misfiring cyl 5 harmful to exhaust gas
140304 Misfiring cyl 3 harmful to exhaust gas
140204 Misfiring cyl 2 harmful to exhaust gas
140404 Misfiring cyl 4 harmful to exhaust gas
140301 Misfire, cyl 3 injection switched off
140202 Misfire, cyl 2 injection switched off
140401 Misfire, cyl 4 injection switched off

Info Memory
140011 Misfiring injection shutdown
231501 Error Memory entry: Send buffer full
11A401 High Fuel Pressure when injection is released, Pressure too low

Permanent Errors
FF1400 Unknown Error
EC1406 Unknown Error

[MasterZ]

Pulled my plugs to inspect them..

The plugs are about 6 months old, when I changed them last.

#1,2,& 3 looked pretty good
#4 & 5 had slight fouling
#6 was fouled

Any idea on what could possibly cause this? I don't wanna just start changing parts. Are there any test I can run to help determine the cause?

I have a picture of the plugs but not sure how to add it to the board.

[MasterZ]

Anyone? Help please.... I am at a loss with no wheels..

[ChiltiCoatl89]

Start with your most cost effective options if you feel you need to replace, misfires are usually ignition, it is directly related to fuel and air, so start low (cost) and work your way up as necessary (in terms of cost) even cleaning for a start. Eliminate one by one the possible variables. (a check list so to say)

Ignition Coils, Spark Plugs, etc, examples are Injectors and Fuel pump being on the higher end in terms of cost, decide wisely and we here as a community are here to assist!