2013 328i xDrive F30 (Timing Chain?) I hope not - Page 4 - Bimmerfest - BMW Forums



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F30 / F31 / F32 / F33 / F34 / F36 (2012 - current)
The sixth generation BMW 3 Series Sedan F30/F31/F34 and the first first generation 4 Series Coupe F32/F33/F36. Get the latest 3 and 4 series pricing from our ordering and pricing guide sticky thread.

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  #76  
Old 12-10-2019, 08:12 PM
PK2348 PK2348 is offline
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Location: Brooklyn NY
 
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Quote:
Originally Posted by namelessman View Post
There is no technical analysis/data on ASS, but some attribute TC issue with frequent start, and ASS does contribute to that.

Do note the TC tensioner is spring loaded with engine off, and switches to oil pressure with engine on.

The crankshaft, and hence TC rotates in one direction, however, any accelerate/decelerate is what stresses the TC and the plastic guides.

One theory behind ECO being stressful is that, lower gears/lower engine rpm are chosen to save gas, but when merge/accelerate is needed, users need to rev up more, and hence more load on TC.
What about when the engine is in ready mode during auto stop?
As poster above noted it does run hotter in eco pro for fuel efficiency, which can cause plastic to fail early, so I guess sport mode should be better for the engine?
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  #77  
Old 12-11-2019, 05:45 AM
Olieno Olieno is offline
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Mein Auto: 2007 335i Montego Blue
Try Replacing Camshaft Solenoids for Acceleration Issues

Quote:
Originally Posted by JoeyMcMahon666 View Post
Just crossed 126k miles. N26 motor, car has been solid! But Iím having acceleration issues. Scanned for codes, no codes. I will seriously be pissed if the chain is starting to go in this, nor do I currently at the moment have the money to do the job... I plan to do it but I canít right now, I can finance the repair but Iím really tryna avoid doing all that. Anywho, poor acceleration issues... and how common is this chain issue? I read it has to do with acceleration problems. Is this true? Seriously BMW needs to recall this and stop trying to milk people dry, my M54 DID NOT have timing chain issues and it was in a heavy e60 04 530i... I am thinking of selling this car before she blows up on me...


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My 2007 335i had acceleration issues - especially at lower speeds (below 40 mph). I replaced the camshaft solenoids - fairly easy DIY - and it really helped ! Look it up - find a youtube video - and I recommend buying original BMW parts. Good luck.
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  #78  
Old 12-11-2019, 05:55 AM
JoeyMcMahon666 JoeyMcMahon666 is offline
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The Vanos solenoids right?


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  #79  
Old 12-11-2019, 05:59 AM
Olieno Olieno is offline
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Location: NJ
 
Join Date: Sep 2010
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Mein Auto: 2007 335i Montego Blue
Vanos Solenoids

Quote:
Originally Posted by JoeyMcMahon666 View Post
Just crossed 126k miles. N26 motor, car has been solid! But Iím having acceleration issues. Scanned for codes, no codes. I will seriously be pissed if the chain is starting to go in this, nor do I currently at the moment have the money to do the job... I plan to do it but I canít right now, I can finance the repair but Iím really tryna avoid doing all that. Anywho, poor acceleration issues... and how common is this chain issue? I read it has to do with acceleration problems. Is this true? Seriously BMW needs to recall this and stop trying to milk people dry, my M54 DID NOT have timing chain issues and it was in a heavy e60 04 530i... I am thinking of selling this car before she blows up on me...


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Try replacing the vanos solenoids. worked great on my 2007 335i.
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  #80  
Old 12-11-2019, 07:51 AM
lyleswk lyleswk is offline
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Mein Auto: 04 325Ci Sport Coupe
Hadn't thought about the additional load on the chain / guide due to more frequent shifting, but that makes sense. I somehow think running at lower RPM (although counter-intuitive) could be loading up the guide differently. If that's true though, you would expect higher failures on the straight 6 engines as well which I don't think is happening. I still say it is unique to the 2.0 guide and hopefully the new guide solves it. I'm banking on it since I replaced the engine...
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  #81  
Old 12-11-2019, 07:56 AM
JoeyMcMahon666 JoeyMcMahon666 is offline
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Mein Auto: 2004 BMW 530i e60 5 serie
Why did you replace the engine??


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  #82  
Old 12-11-2019, 09:50 AM
lyleswk lyleswk is offline
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Mein Auto: 04 325Ci Sport Coupe
I've posted several times, but the ones with most of my opinions:

https://www.bimmerfest.com/forums/sh....php?t=1121833

https://www.bimmerfest.com/forums/sh....php?t=1348793

Short version, engine stopped running while at highway speeds, my dealer (which I trust and have a good relationship with) said engine needed swapping because of the contamination of bits of guide in my oil system, and I spent a weekend replacing the engine with a salvaged engine.
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