HELP!!! Just changed the spark plugs on my 2013 135i...

doublevanosrc · 02-25-2017, 05:48 PM

Just changed the spark plugs on my 2013 135i and I followed the DIY on here to a tee plus the video from youtube. The plugs are OEM from getbmwparts.com and I torque them to spec. I fired it up and the engine is running a bit rough and the SES light came on. Also the exhaust smells different, so bummed out.

iEuropa · 02-25-2017, 06:09 PM

Might be a defective plug.

doublevanosrc · 02-25-2017, 07:13 PM

Quote:

Originally Posted by iEuropa

Might be a defective plug.

You're probably right, OBDII reader gave me error code p305. Damn are they that sensitive? I pulled them out gently like they were the detonator in a nuclear bomb.

ianc · 02-25-2017, 10:34 PM

Go back and double check your work...

ianc

chunho01 · 02-26-2017, 01:52 AM

Dang, this made me think twice about attempting the DIY. Mine's due...

HomoPirate · 02-26-2017, 02:39 AM

Sad to hear you got problems after diy. I successfully changed the spark plug myself a month without hassles and problems and I'm using NGK plug instead of oem. Yes, revert back and double check your work. Good luck

Dackelone · 02-26-2017, 03:12 AM

Move that coil and retest. Its probably a bad coil. Also check the connectors at the top of the coil - that it slides onto the terminals correctly. Its easy to get one on wrong.

Also check that you installed the "correct" plugs. N54 vs N55 plugs have different specs. Also this is why I always say to use BMW dealer bought plugs, they will say "BMW Bosch" on them. Aftermarket plugs will just say "Bosch" and have been known to have misfire issues. The plug holes had no oil leaks right ?

Dack

Dat Aus · 02-26-2017, 03:31 AM

Go back and check everything again. Make sure you put the coils back on properly. They can be a tight fit and if they're not plugged onto the plug properly, you can get misfires. Also make sure the wires are plugged onto the coils correctly.

Quote:

Originally Posted by chunho01

Dang, this made me think twice about attempting the DIY. Mine's due...

It really is a very simple job. Don't be afraid to DIY. There isn't much that can go wrong. Make sure you have the right tools. You'll need a magnetic BMW spark plug tool. You can get them from Burger Tuning (mine arrived in about 10 days). Also make sure you've got some nice long socket extensions because the rear 2 cylinders have limited access. You'll also need a torque wrench to make sure they're torqued to the right spec.

doublevanosrc · 02-26-2017, 03:51 PM

So I went back and inspected cylinder#5, the coil was not plugged in all the way. It's very tight on #5 due to some cables so very little room to get your whole hand in there. As soon as I saw it I could tell it wasn't in all the way. I plugged it in and as soon as I fired it up and the engine was silky smooth and made all the right sounds. I cleared the codes and took her for a long drive so far everything is smooth and back to normal. I spent a while studying this DIY to avoid stuff like this but I'm happy to say it turned out well for an incompetent mechanic like myself.

Thanks for the input guys!!

doublevanosrc · 02-26-2017, 03:57 PM

Quote:

Originally Posted by Dat Aus

Go back and check everything again. Make sure you put the coils back on properly. They can be a tight fit and if they're not plugged onto the plug properly, you can get misfires. Also make sure the wires are plugged onto the coils correctly.

It really is a very simple job. Don't be afraid to DIY. There isn't much that can go wrong. Make sure you have the right tools. You'll need a magnetic BMW spark plug tool. You can get them from Burger Tuning (mine arrived in about 10 days). Also make sure you've got some nice long socket extensions because the rear 2 cylinders have limited access. You'll also need a torque wrench to make sure they're torqued to the right spec.

Agreed it is simple even for a novice like myself, as long as you have the spark plug socket and the OEM plugs you should be good. Most of the work is taking out the intake system which is all plastic and delicate. The long sock extensions do make a world of difference and are highly recommended. At the end of the day just make sure you take your time and not rush anything, it's just nuts and bolts man nuts and bolts.

Sam_M · 02-27-2017, 11:42 AM

That's one thing I noticed when installing my coils and plugs this past weekend... the lever mechanism on the coil only needs a fairly small nudge to unclick which then pushes the plug away from the connector.

Glad it was something simple!!

Mr Gasser · 02-27-2017, 11:56 AM

Nice to know the coils are not easily damaged, some VWs have sensitive coil packs that if you grab them incorrectly, you can pull the wires loose internally, pretty scary!

doublevanosrc · 02-27-2017, 07:07 PM

After normal driving for a day I noticed the throttle a little bit smoother and more power with less input(could be placebo effect). Then I checked my mpg average and it went from 21.5 to 21.9 all in one day!! Might not wait that long to change them out next time.

Stewy_604 · 02-28-2017, 10:17 AM

Plugs are cheap and easy to replace. Glad you got the coil pack issue sorted.

doublevanosrc · 03-10-2017, 12:25 PM

Thanks!

Quote:

Originally Posted by Stewy_604

Plugs are cheap and easy to replace. Glad you got the coil pack issue sorted.

02-25-2017, 05:48 PM	#1
doublevanosrc Loves his G20 265 Rep 2,507 Posts Drives: 2020 330ix M sport Join Date: Jul 2009 Location: Austin. Tx iTrader: (1) Garage List 2013 BMW [0.00]	HELP!!! Just changed the spark plugs on my 2013 135i... Just changed the spark plugs on my 2013 135i and I followed the DIY on here to a tee plus the video from youtube. The plugs are OEM from getbmwparts.com and I torque them to spec. I fired it up and the engine is running a bit rough and the SES light came on. Also the exhaust smells different, so bummed out. __________________ 2020 330ix-Msport Past- 2013 135i 2011 135i
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02-25-2017, 06:09 PM	#2
iEuropa Private 22 Rep 66 Posts Drives: 2008 135i Join Date: Jun 2016 Location: Baltimore iTrader: (0)	Might be a defective plug.
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02-25-2017, 10:34 PM	#4
ianc Ex '87 Carrera 246 Rep 1,259 Posts Drives: '10 TiAg 6MT 135i Join Date: Feb 2010 Location: Redwood Shores, California iTrader: (0)	Go back and double check your work... ianc
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02-26-2017, 02:39 AM	#6
HomoPirate First Lieutenant 84 Rep 331 Posts Drives: Always BMW Join Date: Jun 2016 Location: San Diego iTrader: (3)	Sad to hear you got problems after diy. I successfully changed the spark plug myself a month without hassles and problems and I'm using NGK plug instead of oem. Yes, revert back and double check your work. Good luck __________________ Past: E82 135i Crimson Red \| MPE \| MHD Stage1+ \| Dinan Camber Plate \| LCI Blackline \| Bavsound stage 1 \| KW Coilover V2 \| Past: E93 M3 Vert Alpine White \| Remus Sport Exhaust \| Past: F82 Yas Marina Blue Civic M4\| MPE V2 \| DP \| BM3 \| Apex FL-5 \| MP Part(s) \| Current: F87 M2 Competition Long Beach Blue \| Completely Stock \|
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02-26-2017, 03:12 AM	#7
Dackelone European Editor 10589 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	Move that coil and retest. Its probably a bad coil. Also check the connectors at the top of the coil - that it slides onto the terminals correctly. Its easy to get one on wrong. Also check that you installed the "correct" plugs. N54 vs N55 plugs have different specs. Also this is why I always say to use BMW dealer bought plugs, they will say "BMW Bosch" on them. Aftermarket plugs will just say "Bosch" and have been known to have misfire issues. The plug holes had no oil leaks right ? Dack __________________ Dackel's European Delivery Museum Guide
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02-26-2017, 01:52 AM	#5
chunho01 Private First Class 52 Rep 156 Posts Drives: 125i E88 M-Sport Join Date: Sep 2015 Location: Australia iTrader: (0)	Dang, this made me think twice about attempting the DIY. Mine's due...
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02-26-2017, 03:51 PM	#9
doublevanosrc Loves his G20 265 Rep 2,507 Posts Drives: 2020 330ix M sport Join Date: Jul 2009 Location: Austin. Tx iTrader: (1) Garage List 2013 BMW [0.00]	So I went back and inspected cylinder#5, the coil was not plugged in all the way. It's very tight on #5 due to some cables so very little room to get your whole hand in there. As soon as I saw it I could tell it wasn't in all the way. I plugged it in and as soon as I fired it up and the engine was silky smooth and made all the right sounds. I cleared the codes and took her for a long drive so far everything is smooth and back to normal. I spent a while studying this DIY to avoid stuff like this but I'm happy to say it turned out well for an incompetent mechanic like myself. Thanks for the input guys!! __________________ 2020 330ix-Msport Past- 2013 135i 2011 135i
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02-27-2017, 11:42 AM	#11
Sam_M Tea wot? 210 Rep 271 Posts Drives: 2011 N55 135i 6MT Join Date: Nov 2016 Location: UK iTrader: (0)	That's one thing I noticed when installing my coils and plugs this past weekend... the lever mechanism on the coil only needs a fairly small nudge to unclick which then pushes the plug away from the connector. Glad it was something simple!!
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02-27-2017, 11:56 AM	#12
Mr Gasser First Lieutenant 73 Rep 341 Posts Drives: 135i 09 M-Sport Black on Black Join Date: Jan 2016 Location: Texas iTrader: (0)	Nice to know the coils are not easily damaged, some VWs have sensitive coil packs that if you grab them incorrectly, you can pull the wires loose internally, pretty scary!
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02-27-2017, 07:07 PM	#13
doublevanosrc Loves his G20 265 Rep 2,507 Posts Drives: 2020 330ix M sport Join Date: Jul 2009 Location: Austin. Tx iTrader: (1) Garage List 2013 BMW [0.00]	After normal driving for a day I noticed the throttle a little bit smoother and more power with less input(could be placebo effect). Then I checked my mpg average and it went from 21.5 to 21.9 all in one day!! Might not wait that long to change them out next time. __________________ 2020 330ix-Msport Past- 2013 135i 2011 135i
	Appreciate 1 Dackelone10588.50 Quote

02-28-2017, 10:17 AM	#14
Stewy_604 First Lieutenant 77 Rep 310 Posts Drives: 2011 E82 135i M-Sport Join Date: Aug 2015 Location: Vancouver, B.C. iTrader: (0)	Plugs are cheap and easy to replace. Glad you got the coil pack issue sorted. __________________ 2011 BMW 135i M Sport Space Grey - BMS JB4, VRSF 3.5" catless DP, Berk exhaust, BMS intake, ER CP, Eibach Pro-Kit, H&R spacers, black kidneys, Blacklines, LUX angel eyes 2014 BMW X5 xDrive 35d M Sport Mineral White - MPBK w/ F85 rotors & Carbotech pads, ACS Springs/Links, iND reflector deletes, iND black roundels, MP black kidneys, M50D grille inserts 2007 Suzuki GSX-R 750 - too much to list
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