BMW 535i 2012 RWD n55 I need help please!!!

[chrisvalentino1]

I need help but I need to know if it’s timing. Someone told me that it could either be injectors or timing chain here’s the codes:

P112F Current Please refer to vehicle service manual

P0300 Current Random/multiple cylinder misfire detected

P0303 Current Cylinder 3 misfire detected

P052B Current Cold start ‘A’ camshaft position timing over-retarded bank 1.

P0302 Current Cylinder 2 misfire detected

P112F Pending Please refer to vehicle service manual

P0300 Pending Random/multiple cylinder misfire detected

P0303 Pending Cylinder 3 misfire detected

P0302 Pending Cylinder 2 misfire detected

P0306 Pending Cylinder 6 misfire detected

P0304 Pending Cylinder 4 misfire detected

P112F Permanent Please refer to vehicle service manual

P0300 Permanent Random/multiple cylinder misfire detected

P0303 Permanent Cylinder 3 misfire detected

P0302 Permanent Cylinder 2 misfire detected

P112F Current Please refer to vehicle service manual

P0300 Current Random/multiple cylinder misfire detected

P0303 Current Cylinder 3 misfire detected

[82eye]

try the f10 forum here : 2011-2016 (F10)
you won't find much here on a five series of that age. p-codes mean nothing. get a proper bmw reader and pull the correct number codes if you want to get anywhere. that's one of the first things you'll get told.

[McGyver]

If you don't already have one, get a bluetooth OBDII dongle to keep in the car. Download and pay for the full Bimmer Link app to be able to troubleshoot on the fly. For real diagnostics, buy an ENET cable and install ISTA on a laptop (there are free versions out there)

Step one is to delete all codes and see what returns. If you're getting a misfire on a single cylinder, swap the injector to the other bank (1-3 vs 4-6) to see if the misfire follows it. It may be as simple as needing a new set of coils and plugs. Both should be changed every 50k - 60k miles. If yours are old, it might be a good idea to just start there.

I have a 2014 335i, so the EWG N55 (yours should have the PWG). I switched from the OEM Bosch plugs to the NGK (NGK-97506-1), which are supposed to be a direct replacement. All the gaps were right around 0.030" out of the box. I also switched from the stock Delphi coils to the new BMW recommendation of Eldor (ELD-R3516S00100) coils. Everything went in perfectly. I cleared the misfire codes and the car ran flawless. I'm very happy about this.

https://f30.bimmerpost.com/forums/showpost.php?p=28698615&postcount=19

[MrBurgundy]

Map sensor to throttle angle suggests vac leak.

That timing code is there for a reason, probably has something to do with the vanos gear, chain or camshaft tray damage.

Go into OBD2, look at your LTFT and STFT and let me know what it says.

If you see for example, the number pinned at 25%, we know theres vac leak and the ECM cannot compensate any further