Vibration motor loose on iPhone 6. Wondering if i should replace it or let it be?

I have an iPhone 6 that i’ve been using for more than a year. I dropped it a couple of times.

One day, i heard a rattle on the bottom left corner of my phone. I suspect it to be the vibration motor because my vibration didn’t work and the rattling came from where the vibration motor should be.

i don’t have apple care and no phone insurance.

What are the effects of not reparing my vibration motor? (Besides the rattling) and will it damage my phone further?