Technical Metal ring broke and fell off?

[Mazie]

Hello all

This morning when i drove to car, something was rattling when i drove over small bumps, and the sound came from the from part of the car.
Then when i arrived at work, something fell off when i pulled into the parking lot.
So on the ground i found what seemed to be part of a broken metal ring, a bit more than half a circle, with a diameter of about 10 cm.

Has anyone got a clue what this might be?

Thanks in advance!

 

[custard]

broken spring coil,i would guess

 

[Andy Monty]

As custard says...

Get it checked BEFORE DRIVING ANY FURTHER there is the chance of the broken spring bursting your Tyre if it comes out the cup

 

[Mazie]

With my limited knowledge, I would guess it isnt a spring coil. It is completely flat, so it does not seem like it could be part of the spring.

My mechanic actually guess it was part of the exhaust, he said something about it being part of the "flex"-something.

My knowledge is very limited as you guys might have guessed

But he said it was fine to drive without it, and I could just get it fixed when I was close to the shop.

 

[thegame]

Can you make a picture ?