Rear seat removal E400D

[Waitforme]

Hi
I need to remove the rear near side seat from my E400D coupe.
My wife was showing her friend the diamond solitaire I got her for her 50th birthday and dropped it down the seat belt hole, it has now disappeared somewhere. I’ve tried to look with a dentist mirror but cannot see it, the seat will need to come out.
Can any point me in the direction of a seat removal procedure ?

 

[AMGeed]

Assuming you have the 2016> model, does this help?

To view this content we will need your consent to set third party cookies.
For more detailed information, see our cookies page.

Accept third party cookies

 

[Waitforme]

Thank you , will have a look at that procedure tomorrow

 

[Waitforme]

Thanks @AMGeed .
Removed the seats and retrieved the ring