Headrest clips

[450sl]

Hi all,
Can anyone tell me what the use is of the round clips on the attached picture?
Thanks
Mark

[w113dude]

It appears to be an access hole to the connecting bars, I guess you can loosen or tighten them as needed.

[Jonny B]

Yes, you can access a small bolt inside the headrest to tighten or loosen them as needed to hold position.

[Nate]

Leverage for pulling the headrests up. Also may be for a tighter more uniform fit of leather or mb tex over the headrests.

[450sl]

Happy New Year Guys ! ; may i conclude  that the only disadvantage of not putting them into my new covers is not having fast adjustment access ?

[hkollan]

If your headrest previously  had the holes to access the 10 mm hex bolts, not adding the holes will only leave the option to remove the covers to access the adjustment screws when they eventually need  tightening.
In addition to that you will loose the original appearance without theese holes and corresponding plastic inserts.

Hans