[theultimate01]

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 ))

[Wgosma]

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.

[theultimate01]

Originally Posted by Wgosma

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?

[Wgosma]

Originally Posted by theultimate01

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.

[theultimate01]

Originally Posted by Wgosma

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

[VanDownes]

Originally Posted by Wgosma

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.

Thanks for the info, I didn't know about it before.

[Jolbex]

If u ask me it runs perfectly. B58 is not much quieter, and being a petrol....