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      04-30-2024, 06:55 PM   #1
theultimate01
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Normal Engine noise?

Hi, I'm new to all this so not sure how everything works but I have a couple questions and would appreciate the help/advice!

I bought a BMW X3 F25 20d Xdrive 2014 model (64 plate for UK), and the car was immaculate and has full service history from BMW up until 66,500 miles. I bought it at 69,000 miles and the oil was changed when I did buy it. The car is now at 72,000 miles today.
I have been driving it now for a few months and had no issues but I have read here and there that this model is prone to timing chain failures. I'm a bit paranoid about that happening and now have since been constantly listening for engine noises to the point where I think I'm overanalysing the normal engine noise. I have attached a couple links with videos to my engine starting up and one with idling and also with a few revs.
If anyone knows a good amount about this model can you advise me on:

1. Is this normal engine running sound?
2. When should I look at replacing the timing chain if needed? Like I said it has had full BMW service history so I'm sure they would have picked up any problems with the previous owner.

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Thank you ))
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      05-01-2024, 09:42 AM   #2
Wgosma
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I'm not familiar with the diesel engines, not too common in the States. However I think the only F25 X3's that had timing chain related issues were the early model (prior to 2015) 4 cylinder gasoline engine cars, the N20 model engine.
To the best of my knowledge BMW engines are typically equipped with a metal timing chain which will last the life of the vehicle, periodic replacement as required with a rubber belt design is not necessary.
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      05-01-2024, 04:55 PM   #3
theultimate01
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Quote:
Originally Posted by Wgosma View Post
I'm not familiar with the diesel engines, not too common in the States. However I think the only F25 X3's that had timing chain related issues were the early model (prior to 2015) 4 cylinder gasoline engine cars, the N20 model engine.
To the best of my knowledge BMW engines are typically equipped with a metal timing chain which will last the life of the vehicle, periodic replacement as required with a rubber belt design is not necessary.
So that means my car falls under that category as it was registered September 2014?
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      05-01-2024, 05:24 PM   #4
Wgosma
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Quote:
Originally Posted by theultimate01 View Post
So that means my car falls under that category as it was registered September 2014?
I don’t think so, your engine is N47 or B47….im pretty certain the N20 petrol engine was the only 4 cylinder model with the timing chain issues.
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      05-01-2024, 06:08 PM   #5
theultimate01
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Quote:
Originally Posted by Wgosma View Post
I don’t think so, your engine is N47 or B47….im pretty certain the N20 petrol engine was the only 4 cylinder model with the timing chain issues.
Did a bit of searching and yes seems like you are right. Puts my mind at a bit of ease now! Thanks for your advice
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      05-14-2024, 06:44 AM   #6
Jolbex
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If u ask me it runs perfectly. B58 is not much quieter, and being a petrol....
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