02-06-2018, 09:09 PM | #1 |
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N20 Blown Engine/s
Hi all,
I wanted to start a central thread (aus specific) for anyone experiencing major N20 engine issues. I have now seen my 5th N20 engine with major engine issues - in all 5 cases they had lost compression in one cylinder, so not quite as bad as a rod out the side of the block as some US members have reported. The mix has been: 1 x 220i 1 x 320i 1 x 420i 2 x 328i In 3 of the cases luckily BMW covered it under warranty and one was under goodwill as it was just outside of the warranty period. The other 2 cases the owners were out of pocket. Hole in the side of the block (US member) Anyone else experienced / experiencing this? |
02-07-2018, 04:12 AM | #2 |
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What years and how many k's were on the cars. Also were they tuned.
What do think what the cause was From the US it seems over tuning and timing chains on the early models |
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02-07-2018, 04:13 AM | #3 |
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I have been looking into it for an upcoming purchase - it would be interesting to know how many km's these engines had done. It seemed to become a risk >60k kms and timing guides were a root cause.
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02-07-2018, 07:18 AM | #4 |
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Drives: 2016 lci m3 mw
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Well guys my 2012 328i had over 150k lol Not even a single engine issue. Was driven hard too My sister ordered one couple years later and had fuel injector issues in the first year.
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02-07-2018, 05:37 PM | #6 |
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1 out of the 5 was tuned.
KMs ranged from 30-80k km. There will be plenty of N20s driven hard with zero issues.. after all these failures will only represent a tiny fraction of N20 engines overall. |
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02-07-2018, 07:30 PM | #7 | |
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Also on the US site i have seen those blow up n20 threads and a lot of them were due to people just tuning the car beyond its limits, as well as not modding it appropriately with supporting mods, or just running the incorrect maps Stuart have you come across timing chain guide failures. Have you replaced the guides/chains as preemptive measures for any customer yet? |
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02-07-2018, 10:45 PM | #9 |
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02-26-2018, 09:42 PM | #11 |
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02-27-2018, 10:19 PM | #12 |
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02-28-2018, 03:22 AM | #13 |
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B48s are nearly 3 years old (4 years if you count the ones in Minis) and the N20 issues had well and truly reared their heads by 3 years.
Last edited by bradsm87; 02-28-2018 at 03:49 AM.. |
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03-07-2018, 09:46 PM | #14 |
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03-08-2018, 12:23 AM | #15 |
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09-26-2021, 02:14 PM | #16 | |
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