View Poll Results: Did you experience timing chain failure on your N20 engine? | |||
Yes, my timing chain failed or required replacement. | 33 | 14.47% | |
No, I have not experienced timing chain failure. | 187 | 82.02% | |
I replaced my timing chain as a preventative measure. | 8 | 3.51% | |
Voters: 228. You may not vote on this poll |
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10-09-2019, 11:11 AM | #155 |
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Hi, Planning to buy a 320i xdrive with 75000km, could you post your experiences regarding the timing chain issues near 100k? What would i need to keep in mind before purchasing.
Help will be really appreciated. Thanks in advance. |
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10-11-2019, 03:01 AM | #156 |
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Model: F31 2013 320i
Build: Munich, 06.2013 Mileage: 206k km Timing Chain Status: No problems Oil Changes: Every 10k km since 135k, before every 30k km Stop/Start Status: Coded off at 135k km Additional Details: Bootmod1 at 170k km My local workshop recommends replacing the timing chain and inspecting the oil pump next week. Personally, I did't observe the symptoms described in the forum suggesting that the repair should be done (sounds, wear or stretching of the chain). Do you think that despite the lack of symptoms, I should replace the timing chain as a preventive measure because of the high mileage? |
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10-11-2019, 06:52 AM | #157 |
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Having it inspected first - pay the $150 to have it professionally looked at before buying.
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10-11-2019, 03:25 PM | #158 |
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Mine just went, I got the whine. I have 20 days of the extended 7yr 70k mile warranty left and BMW is replacing the timing chain under warranty.
No codes, just sounded like it had a supercharger. 328 xdrive Build 10/2012 N26 58,500 miles Mobil 1 with BMW filter Oil changed every 7k Mods bellow since 32,000 miles when I bought mine. start/stop disabled since 32,000 miles
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10-11-2019, 05:59 PM | #159 | |
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at it failing at that mileage and having S/S disabled. Good that you just got it in time...
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10-11-2019, 06:08 PM | #160 |
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It would be good to know also what climate everyone that is having the failures lives in. Really cold winter's might have an effect on the plastic guides...in my opinion
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10-13-2019, 05:35 PM | #161 | |
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Yea, I had a feeling it was going. I took it in once in February at 51,000 and they said it was good, but this time it was definitely bad.
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10-13-2019, 05:37 PM | #162 |
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I'm in NC it's pretty hot here, but the car spent 45000 miles in NYC before I moved.
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10-14-2019, 02:51 AM | #164 |
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75k miles getting low oil pressure warning, likely timing chain guides falling into the oil pan
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10-28-2019, 01:11 AM | #166 |
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I would change the guides if the chain is not stretched. The guide could be changed by removing the valve cover. Changing the chain would also include removing the oil pan which is a lot more cost/work.
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10-28-2019, 02:49 PM | #167 | |
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I see no future in just replacing guides. |
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10-28-2019, 04:39 PM | #168 |
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I noticed the timing chain whine during my track event over the weekend. I think in my case, its an oil starvation issue but the whine is super obvious. It sounds exactly like a supercharger whine. Just something to keep in mind for those who are tracking their cars and hear the whine under heavy braking or hard left turns.
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10-28-2019, 09:15 PM | #169 | |
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Some have the dreaded whine, so this might indicate the chain. For others, absolutely no warning of any kind and my theory is the guides break first. The N20 does not have a timing cover you can remove. Access is from the top and the bottom. |
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10-29-2019, 04:39 PM | #170 | ||
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I dont see how that would be possible. |
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10-29-2019, 09:26 PM | #171 | |
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Also, included the link for the procedure. https://www.newtis.info/tisv2/a/en/f...aft/1VncnN3x3P |
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10-30-2019, 03:56 AM | #172 |
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Wow, you did all this and didn't changed the chain? As i can see in the procedure, you'll need to split the chain.. I'm just curious why you did't change it, I guess the chain is the main reason guides are braking because it is stretching, and tensioner can't keep it tight anymore.
Thanks for the link for the procedure tho Last edited by MilanF30; 10-30-2019 at 04:23 AM.. |
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10-30-2019, 09:18 AM | #173 | |
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I also installed the newer version of the tensioner. |
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10-30-2019, 08:23 PM | #174 |
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@chipguy
Very interesting, thanks for sharing. How many of the BMW specialty tools did you actually require? Estimated time to complete, taking your time? |
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10-30-2019, 10:04 PM | #175 | |
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It took me about 15 hours. But I am super slow and careful. Using a torque wrench on many of the bolts. Screwing down the valve cover bolts half a turn at a time etc. I believe this is less than 5 hours for an experienced professional mechanic. It would be an excellent time to change the spark plugs and also the belt. |
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