[kadzins]

Hi! So went to polish my car to master, and he checked my chain and send this video - https://drive.google.com/file/d/1hZ0...w?usp=drivesdk

It looks like little bit streched out, so i can’t decide what to do. Do i need to change it right away or can i do oil change and run little bit more and change in next oil change? Or is it okay and i can go without fear?

Car is 2015, manufactured in end of 2014. It has 55k miles.

[Billfitz]

Nothing unusual there. This sound is how you know your chain is ready to die at any moment:

You don't show what year your car is. If it's production date is after mid 2015 you have the new chain, so you're probably OK. If the production date is 2017 or later you have the new chain and the new tensioner, which is even better. If your production date is before mid 2015 change the tensioner ASAP. The main reason for the timing chain failure was the tensioner, which didn't keep it tight enough.

[kadzins]

Ther’s no noise yet. Car is 2015. Manufacturing year is end of 2014.

[Billfitz]

Get the tensioner replaced yesterday; even better, the day before yesterday.

[kadzins]

https://www.bimmerpost.com/forums/sh...php?p=31079064

Thank you! Just made order for new. Do i have to wory about anything else after i change? Oil changes made every 6k miles.

[Billfitz]

You should be fine with normal routine maintenance. Just be sure to do your oil change every spring, to get rid of the sludge that accumulates over the winter.

[kadzins]

Can you tell, when tensioner is being changed, do you need to somehow make chain in tension or you just can unscrew it and put back the new one and dont need to place chain in tension?

[Billfitz]

The only way to put tension on the chain is with the tensioner.