Engine knock : /

335MRod · 12-09-2017, 09:15 AM

Issue starte le last night, after I turn the car on it takes a minute to start knocking. I imagine engine is toast, will take the car to mechanic on Monday.

Link to video:

Mean E92 · 12-09-2017, 03:22 PM

Come back when you get some info from the mechanic. If your engine is toast prepare to drop 10k$ for the whole swap. I went through hell with my car. Good luck and hopefully its just something small.

dleccord · 12-09-2017, 04:18 PM

What year production was your 335i, month and year? Did you guys run tunes? All these threads about engine knocks make me want to trade mine in...

Diox · 12-09-2017, 05:58 PM

Quote:

Originally Posted by Mean E92

Come back when you get some info from the mechanic. If your engine is toast prepare to drop 10k$ for the whole swap. I went through hell with my car. Good luck and hopefully its just something small.

How was it after the swap?
I'm currently in the process of getting mine swapped

Mean E92 · 12-09-2017, 06:04 PM

Quote:

Originally Posted by Diox

Quote:

Originally Posted by Mean E92

Come back when you get some info from the mechanic. If your engine is toast prepare to drop 10k$ for the whole swap. I went through hell with my car. Good luck and hopefully its just something small.

How was it after the swap?
I'm currently in the process of getting mine swapped

Honestly man it was hell. Took 3 months for everything because the engine had a cracked valve cover even though they said that there's no leaks and everything was ok. The supplied me with the new valve cover and gasket but the didn't want to cover labor cost so I just did it my self. Also two injectors were leaking. So I was very disappointed. Good luck with everything.

northbranchroad · 12-10-2017, 03:23 PM

Quote:

Originally Posted by Mean E92

Honestly man it was hell. Took 3 months for everything because the engine had a cracked valve cover even though they said that there's no leaks and everything was ok. The supplied me with the new valve cover and gasket but the didn't want to cover labor cost so I just did it my self. Also two injectors were leaking. So I was very disappointed. Good luck with everything.

Quote:

Originally Posted by Diox

How was it after the swap?
I'm currently in the process of getting mine swapped

What was the reasons your engines needed swapped? Miles and what sort of mods?

N54_e90 · 12-10-2017, 04:20 PM

Jesus Christ, what a nightmare. I thought N55's were suppose to be more reliable than N54's? (Sorry, oblivious N52 owner here)

Hope it works out for you guys.

Diox · 12-10-2017, 04:30 PM

I was fbo with pure stage 2, 50k to 60k miles
I thought it was just cause previous owner was a punk but.. me and OP had the same exact set ups lol

http://www.e90post.com/forums/showthread.php?t=1421754

dleccord · 12-11-2017, 02:58 AM

would it make sense to buy aftermarket warranty now?

Jeyoller · 12-11-2017, 10:54 AM

Can you guys post on http://www.e90post.com/forums/showthread.php?t=1423517 what mods you guys had, millage, model and production year? im trying to gather the common denominator in these situations in order to track this a little better. Sorry to hear another N55 with knocking problems

JETmn · 12-12-2017, 10:15 AM

What brand of oil were you using? Just trying to see if there are any similarities between these and BMW's are known to be picky about oil.

335MRod · 12-12-2017, 05:46 PM

Quote:

Originally Posted by JETmn

What brand of oil were you using? Just trying to see if there are any similarities between these and BMW's are known to be picky about oil.

Liqui Moly

MTK24 · 12-12-2017, 05:51 PM

this is probably the third thread I have seen regarding knock on a N55 this week.

Do these engines have a five to six year period and then just go to shit? Makes me think about trading my 335ix in with 70k miles... even though I just bought it at 62k miles

xxMike61 · 12-12-2017, 07:44 PM

https://streamable.com/vf4yh

Is this knock? I've been having weird issues. Seems like its misfiring, or like not all the power is there. I will check coils and plugs soon. Just changed the oil too. Using 0w 40

Mean E92 · 12-12-2017, 10:52 PM

Quote:

Originally Posted by xxMike61

https://streamable.com/vf4yh

Is this knock? I've been having weird issues. Seems like its misfiring, or like not all the power is there. I will check coils and plugs soon. Just changed the oil too. Using 0w 40

No no that sounds nothing like a knock. I know how a knock sounds like, ask me how I know

xxMike61 · 12-12-2017, 11:15 PM

Quote:

Originally Posted by Mean E92

No no that sounds nothing like a knock. I know how a knock sounds like, ask me how I know

Could it be an early indicator though? I took an oil sample and still waiting on results. I heard leaky injectors could cause rod knock too

335MRod · 12-13-2017, 07:02 AM

Quote:

Originally Posted by xxMike61

Could it be an early indicator though? I took an oil sample and still waiting on results. I heard leaky injectors could cause rod knock too

Doesn’t sound like a knock to me either. My mechanic got back to me yesterday and it’s official , my 11’ 335 w/ 45k miles has a spun rod bearing.. honestly, my best adavise to all would be stick to jb4. Too much coincidence my buddy and I both identical setups and tune, both with spun rod bearings.

JETmn · 12-13-2017, 08:48 AM

Quote:

Originally Posted by 335MRod

Doesn’t sound like a knock to me either. My mechanic got back to me yesterday and it’s official , my 11’ 335 w/ 45k miles has a spun rod bearing.. honestly, my best adavise to all would be stick to jb4. Too much coincidence my buddy and I both identical setups and tune, both with spun rod bearings.

I he running Liqui moly too? We just recently started having these issues and the majority are running it. I know it is pretty popular and the dataset is still small, but something to keep an eye on. I am definitely sticking with my Castrol LL01 after starting to see this though. I might start keeping an official tally to see if we can find any commonality.

335MRod · 12-13-2017, 12:37 PM

Quote:

Originally Posted by Vampire335i

this is probably the third thread I have seen regarding knock on a N55 this week.

Do these engines have a five to six year period and then just go to shit? Makes me think about trading my 335ix in with 70k miles... even though I just bought it at 62k miles

Honestly, I think there a couple factor which play a role. For Diox and me we both had identical set ups, both on liqui Molly and custom e30 tunes. My car had 45k and Diox I believe was under 65k, this is fairly low milage and shouldn’t have happened.

335MRod · 12-13-2017, 12:38 PM

Quote:

Originally Posted by JETmn

I he running Liqui moly too? We just recently started having these issues and the majority are running it. I know it is pretty popular and the dataset is still small, but something to keep an eye on. I am definitely sticking with my Castrol LL01 after starting to see this though. I might start keeping an official tally to see if we can find any commonality.

Yes, liqui molly..

MTK24 · 12-13-2017, 02:34 PM

Quote:

Originally Posted by 335MRod

Honestly, I think there a couple factor which play a role. For Diox and me we both had identical set ups, both on liqui Molly and custom e30 tunes. My car had 45k and Diox I believe was under 65k, this is fairly low milage and shouldnÃƒÂ‚Ã‚Â’t have happened.

What custom e30 tune did you have?

I've run e30 on mine on Map 5 and had no problems on stock fuel lines and fuel pumps. I also use liqui moly 10w40

xxMike61 · 12-13-2017, 03:18 PM

Quote:

Originally Posted by Vampire335i

What custom e30 tune did you have?

I've run e30 on mine on Map 5 and had no problems on stock fuel lines and fuel pumps. I also use liqui moly 10w40

Is there any benefit in running 10w40 vs 5w30 or 0w40?

12-09-2017, 09:15 AM	#1
335MRod Second Lieutenant 66 Rep 202 Posts Drives: 11' 335i xdrive black Join Date: Nov 2016 Location: Miami, FL iTrader: (0)	Engine knock : / Issue starte le last night, after I turn the car on it takes a minute to start knocking. I imagine engine is toast, will take the car to mechanic on Monday. Link to video: __________________ 11' 335i xDrive Sapphire BLK/Saddle Brown interior - VRSF FBO - PS2 - Fuel-it Stg. 2 LPFP - PR COILS - Injen CAI
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12-09-2017, 03:22 PM	#2
Mean E92 Private First Class 40 Rep 177 Posts Drives: 2011 BMW E92 335i Join Date: Jun 2016 Location: San Francisco, California iTrader: (0)	Come back when you get some info from the mechanic. If your engine is toast prepare to drop 10k$ for the whole swap. I went through hell with my car. Good luck and hopefully its just something small.
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12-09-2017, 04:18 PM	#3
dleccord Captain 99 Rep 840 Posts Drives: 2011 BMW 335i E90 Join Date: Apr 2016 Location: Nelson, New Zealand iTrader: (0)	What year production was your 335i, month and year? Did you guys run tunes? All these threads about engine knocks make me want to trade mine in...
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12-10-2017, 04:20 PM	#7
N54_e90 Don 46 Rep 299 Posts Drives: '09 E90 335xi Family Sedan Join Date: Jan 2017 Location: Your Mother's House iTrader: (0)	Jesus Christ, what a nightmare. I thought N55's were suppose to be more reliable than N54's? (Sorry, oblivious N52 owner here) Hope it works out for you guys.
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12-10-2017, 04:30 PM	#8
Diox Private First Class 24 Rep 122 Posts Drives: 335i xDrive 2011 6MT Join Date: Aug 2016 Location: 11414 iTrader: (0)	I was fbo with pure stage 2, 50k to 60k miles I thought it was just cause previous owner was a punk but.. me and OP had the same exact set ups lol http://www.e90post.com/forums/showthread.php?t=1421754
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12-11-2017, 02:58 AM	#9
dleccord Captain 99 Rep 840 Posts Drives: 2011 BMW 335i E90 Join Date: Apr 2016 Location: Nelson, New Zealand iTrader: (0)	would it make sense to buy aftermarket warranty now?
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12-11-2017, 10:54 AM	#10
Jeyoller New Member 13 Rep 29 Posts Drives: E90 335i 2011 Join Date: Feb 2015 Location: Northern Virginia iTrader: (0)	Can you guys post on http://www.e90post.com/forums/showthread.php?t=1423517 what mods you guys had, millage, model and production year? im trying to gather the common denominator in these situations in order to track this a little better. Sorry to hear another N55 with knocking problems
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12-12-2017, 10:15 AM	#11
JETmn Lieutenant Colonel 245 Rep 1,595 Posts Drives: 2011 335i xDrive Msport Join Date: Apr 2013 Location: Orlando iTrader: (0) Garage List 2011 335Xi [0.00]	What brand of oil were you using? Just trying to see if there are any similarities between these and BMW's are known to be picky about oil. __________________ 2011 335Xi 6AT - VRSF catless DP - VRSF 7" FMIC with turbo inlet pipe - VRSF chargepipe - Pure Stage 1 turbo - JB4 - E30 - xHP Stage 3 - Strongflex tension bushings - Whiteline RSFB - UUC rear swaybar
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12-12-2017, 05:51 PM	#13
MTK24 Lieutenant 485 Rep 599 Posts Drives: 2011 335I X Drive Join Date: Nov 2017 Location: Seattle iTrader: (0)	this is probably the third thread I have seen regarding knock on a N55 this week. Do these engines have a five to six year period and then just go to shit? Makes me think about trading my 335ix in with 70k miles... even though I just bought it at 62k miles __________________ Vermillion Red
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12-12-2017, 07:44 PM	#14
xxMike61 First Lieutenant 78 Rep 239 Posts Drives: 2011 335i Coupe Join Date: Feb 2017 Location: Sacramento, CA iTrader: (0)	https://streamable.com/vf4yh Is this knock? I've been having weird issues. Seems like its misfiring, or like not all the power is there. I will check coils and plugs soon. Just changed the oil too. Using 0w 40 __________________ 2011 335i M-Sport E92 MHD E30 \| Phoenix Racing CP \| K&N Drop In Air Filter \|Fuel-it Stage 2 LPFP \| xHP Stage 3 \| VRSF DP \| ARM 5" FMIC + Hose Upgrades \| GFB DV+ \| VMR 19" v703
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