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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > N20 / N26 Timing Chain Failure Log
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View Poll Results: Did you experience timing chain failure on your N20 engine?
Yes, my timing chain failed or required replacement. 10 13.16%
No, I have not experienced timing chain failure. 64 84.21%
I replaced my timing chain as a preventative measure. 2 2.63%
Voters: 76. You may not vote on this poll

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      06-12-2019, 07:17 AM   #23
IraHayes
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Model: MY 2015 328i . October, 2014 build date. Rosslyn, South Africa.
Mileage: 45k miles
Timing Chain Status: No problems
Oil Changes: Every 6k miles since 28k miles. Car is CPO, so not sure about PO. Car was under original warranty still, so I'm hoping they were doing every 10k max.
Stop/Start Coded Status: Coded, always off.
Additional Details: Using 5w-40.

Last edited by IraHayes; 06-12-2019 at 02:16 PM..
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      06-12-2019, 09:49 AM   #24
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Model: MY 2012 328i . May, 2012 build date. Munich.
Mileage: 76,000 miles
Timing Chain Status: No whine or issue detected
Oil Changes: Every 4-5,000 miles since 50,000 miles, PO records show 12-15000 miles OCI (old BMW schedule). Weight: 5w-40
Stop/Start Coded Status: Coded, always off.
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      06-12-2019, 11:51 AM   #25
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Model: 2013 328i. Sept 2012 build date
Mileage: 72k miles
Timing Chain Status: No problems
Oil Changes: Every 5k miles since 58k miles. PO said every 7500 miles
Stop/Start Coded Status: Coded off, not sure about PO
Additional Details: Bootmod3 at 62k miles
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      06-12-2019, 12:00 PM   #26
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Quote:
Originally Posted by IraHayes View Post
Nice template, Iím going to steal it. What is PO?
Previous Owner
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      06-12-2019, 12:33 PM   #27
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Build date 2012 MY '13 328xi 91000KM no issues so far.
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      06-12-2019, 01:37 PM   #28
rjdnyy224
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Quote:
Originally Posted by IraHayes View Post
Nice template, Iím going to steal it. What is PO?
Thanks, but I stole it from MyEvo8u

PO= Previous Owner
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      06-12-2019, 07:59 PM   #29
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Quote:
Originally Posted by pierreye View Post
528i built 3/2013. 70000 km without whining sound. ASS is coded off since day 1. As I'm going to keep my car long term, I'll bring it in next 2 days to change the timing chain, chain guide and tensioner. Will also take a peek at intake valve if that need cleaning too.
Make sure to share any photos or additional details you may come across in the process.
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      06-12-2019, 09:46 PM   #30
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Some info I've posted before if you choose to accomplish the timing chain service bulletin preemptively:

It's about $2000 to have the timing chain service bulletin preemptively done at an independent shop. Basically it's 10 hours labor plus parts and 2 extra hours if you want them to replace the oil pump while they're in there. The oil pump is just a couple of bolts since they already have the pan off, so an independent mechanic may charge less time against it. Here's the service bulletin:

https://bmwtechnician.com/2017/08/02...-bmw-bulletin/
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      06-13-2019, 02:29 AM   #31
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Quote:
Originally Posted by sspade View Post
Make sure to share any photos or additional details you may come across in the process.
Just send in yesterday. I ask the service advisor to call me when they disassemble the engine so that I can take a look at the timing chain rail and also the intake valve for carbon buildup after 70000 km.

Here in Malaysia, the timing chain replacement is around RM 4k (USD 1k) with authorized service center. Normally have a special discount on parts and labor if the car is service by them.

Last edited by pierreye; 06-13-2019 at 02:36 AM..
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      06-13-2019, 03:28 AM   #32
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Model: 2013 328i. April 29, 2013 build date
Mileage: 103k miles
Timing Chain Status: Don't know if it's whining or not, don't think so.
Oil Changes: 11K Miles
Stop/Start Coded Status: Coded off
Additional Details: Bootmod3 at 103K Miles.

Now I'm worried. I've seen a post somewhere that listed a specific date that the timing chain guide rails were upgraded to prevent the problem. Does anyone have that list or date? I was under the impression that BMW corrected the problem? Anyone know when that was?

I seen the list of 7/70 warranty extension but I'm way out of that based on miles.
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      06-13-2019, 06:27 AM   #33
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The last change on newest part was in 2015. 2013 definitely have a potential timing chain issue.
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      06-13-2019, 06:32 AM   #34
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Great thread. I’m not voting since my built date is 03/15. However, I did have a 13 328i with a built date of 01/13 that had IIRC 33k miles before I traded it in for the 335 and I did hear whine/chain noise from 25k on.
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      06-13-2019, 08:19 AM   #35
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stroker15

Considering the ELW covers vehicles built up to 02/2015... anything built before that could have the old part numbers.

All 2012, 2013, 2014 and some 2015 are effected.

I noticed a guy on FB group yesterday who thought he had the new parts because his car was 2015. When he decoded the VIN... he found his build date to be 11/2014.
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      06-13-2019, 02:26 PM   #36
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Model: 228i, built 2/15
Mileage: 45,000 miles
Timing Chain Status: No whine or issue detected
Oil Changes: Every 4-5,000 miles since 35,000 miles, no records from PO
Stop/Start Coded Status: Always off, probably coded by the PO.
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      06-13-2019, 03:00 PM   #37
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2013 328i xDrive N26

121k miles, same chain and guide.

Auto Start/Stop Turned Off.

No issues to speak of, love this car.


Change oil every 5-6k.
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      06-13-2019, 07:42 PM   #38
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Quote:
Originally Posted by pierreye View Post
The last change on newest part was in 2015. 2013 definitely have a potential timing chain issue.
Thanks, I'm gonna have to start saving up. The timing chain kit alone is $556. I can assume the labor won't be cheap. But cheaper than a new motor.

https://www.fcpeuro.com/products/bmw...-11318648732kt
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      06-13-2019, 07:53 PM   #39
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Quote:
Originally Posted by JoeyMcMahon101 View Post
2013 328i xDrive N26

121k miles, same chain and guide.

Auto Start/Stop Turned Off.

No issues to speak of, love this car.


Change oil every 5-6k.
Thanks for your post. It's a relief to know you made it to 121K miles with no issues. I have hope mine will last long enough for me to afford changing it out. I got 103K miles.

I'll definitely start changing my oil more often now.
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      06-14-2019, 07:09 AM   #40
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Model: MY 2015 328i. February 23, 2015 build date. Rosslyn, South Africa.
Mileage: 26k miles
Timing Chain Status: No problems
Oil Changes: Every 5k miles.
Stop/Start Coded Status: Coded, always off.

See timing chain pic attached. Looks like I have the old timing chain.
Attached Images
 
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      06-16-2019, 07:49 PM   #41
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Model: 2014 F30 328i Sport RWD
Build: Munich, 2019-08
Mileage: 68,000 miles
Timing Chain Status: Short block replaced at 67,000 miles at BMW's cost after having my dealer investigate a whirring noise typical of the timing chain guide wear issue.
Oil Changes: Between 8,000 and 10,000 miles since new. Interval was deemed appropriate by used oil analysis.
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      06-16-2019, 11:46 PM   #42
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Cheers to 340idude for being the first deushbag to vote (Yes, of course) who hasn’t had an N20.

A new member with a handful of posts... that username... but owned an N20 powered vehicle prior? That failed nonetheless? And never once came to this forum? GTFO.
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      06-17-2019, 08:49 PM   #43
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      06-18-2019, 01:32 AM   #44
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Model: MY 2014 328i . 2, 2014 build date.
Mileage: 63,000 miles
Timing Chain Status: No whine, no issues
Oil Changes: Every 6-7000 miles since 28,000 miles
Weight: 5w-40
Stop/Start Coded Status: Never in eco mode so it's never on.

Driven hard every day on my 24mile commute (one way)
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