2007 335i cylinder 5 misfire question

Rsoxs19 · 08-06-2016, 07:43 PM

so today i did some spirited driving and got the check engine light to come on. it was really rough when i pressed on the gas like something wasnt right. When i read the codes it said it was cylinder 5 misfire. so i cleared it and everythings fine now. It only happens when its WOT for a good amount of time. my question is what could be causing this? My only other issue is a slightly rough idle. Any ideas on what the problem is? Thanks!

Blue E92 · 08-06-2016, 09:26 PM

Could be injectors, coil pack, or spark plugs. You can switch the coil packs around to see if the misfire changes cylinders same with spark plug. If the same cylinder is still firing most likely injectors would have to replace minimum of 3 but might as well just do all 6.

javi · 08-06-2016, 10:15 PM

I had the same issue on my 07 328i. The misfire was on cylinder 4. Was experiencing rough idle, loss of power, spuddering at idle. Changed the coil pack for that cylinder and all better.

TrAcK TRaP · 08-11-2016, 07:09 PM

start with your spark plugs..

Monster900 · 08-11-2016, 09:38 PM

Quote:

Originally Posted by Rsoxs19

so today i did some spirited driving and got the check engine light to come on. it was really rough when i pressed on the gas like something wasnt right. When i read the codes it said it was cylinder 5 misfire. so i cleared it and everythings fine now. It only happens when its WOT for a good amount of time. my question is what could be causing this? My only other issue is a slightly rough idle. Any ideas on what the problem is? Thanks!

This is funny as the same thing happened to me yesterday with exact same symptoms. I pulled over restarted the engine and everything was fine. I am betting on the injector being on its way out.

Stopa · 08-11-2016, 09:58 PM

Quote:

Originally Posted by Rsoxs19

so today i did some spirited driving and got the check engine light to come on. it was really rough when i pressed on the gas like something wasnt right. When i read the codes it said it was cylinder 5 misfire. so i cleared it and everythings fine now. It only happens when its WOT for a good amount of time. my question is what could be causing this? My only other issue is a slightly rough idle. Any ideas on what the problem is? Thanks!

Had the same thing happen week before last. Under WOT car would beggin to shudder and stay like that until turning off and turning on again, with SES light. Code said cylinder 5 misfire. Replaced all the coils and took it the dealership to have a fuel system service done just to make sure that was okay. Smooth as butter now.

samuelmccarthy13 · 08-11-2016, 10:01 PM

One of the most common problems, just switch one of the ignition coils either with another cylinder or with a new one and then see if it still misfires. If it does replace spark plug(s). Still does replace all spark plugs and ignition coils. Had this problem myself. Also gets rid of that rough idle

08-06-2016, 07:43 PM	#1
Rsoxs19 First Lieutenant 65 Rep 342 Posts Drives: 2007 335i E92 Join Date: Jul 2016 Location: Albany, New York iTrader: (1) Garage List 2007 BMW 335i [10.00] 2011 BMW X5 35d [0.00]	2007 335i cylinder 5 misfire question so today i did some spirited driving and got the check engine light to come on. it was really rough when i pressed on the gas like something wasnt right. When i read the codes it said it was cylinder 5 misfire. so i cleared it and everythings fine now. It only happens when its WOT for a good amount of time. my question is what could be causing this? My only other issue is a slightly rough idle. Any ideas on what the problem is? Thanks!
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08-06-2016, 09:26 PM	#2
Blue E92 Second Lieutenant 90 Rep 225 Posts Drives: 335is e92 Join Date: Jun 2016 Location: Tri-Cities, TN iTrader: (0) Garage List 2012 BMW 335is [10.00]	Could be injectors, coil pack, or spark plugs. You can switch the coil packs around to see if the misfire changes cylinders same with spark plug. If the same cylinder is still firing most likely injectors would have to replace minimum of 3 but might as well just do all 6.
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08-06-2016, 10:15 PM	#3
javi New Member 0 Rep 16 Posts Drives: 2007 328 i Join Date: Mar 2012 Location: TX iTrader: (0)	I had the same issue on my 07 328i. The misfire was on cylinder 4. Was experiencing rough idle, loss of power, spuddering at idle. Changed the coil pack for that cylinder and all better.
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08-11-2016, 07:09 PM	#4
TrAcK TRaP bOrN To DiE 413 Rep 1,738 Posts Drives: 2011 E92 M3 ZCP Join Date: Apr 2013 Location: South Jersey iTrader: (0)	start with your spark plugs..
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08-11-2016, 10:01 PM	#7
samuelmccarthy13 Private First Class 25 Rep 193 Posts Drives: BMW 335i e90 2007 Sedan Join Date: Aug 2015 Location: NSW Australia iTrader: (0)	One of the most common problems, just switch one of the ignition coils either with another cylinder or with a new one and then see if it still misfires. If it does replace spark plug(s). Still does replace all spark plugs and ignition coils. Had this problem myself. Also gets rid of that rough idle
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