Plastic Nut type things

[GillyC63]

Hi all
While cleaning out the estate today I noticed 2 plastic nut type things attached to the rear interior wheel arches. One is almost flush but the drivers side one is sticking up a lot more.
Does anybody know what they are/affix too? Car is a W204 estate.
Many thanks in advance of anyone helping me out.

 

[brucemillar]

Not sure. Could they be for unfitted mud guards?

 

[E55BOF]

Post a picture?

 

[MWCLS]

Captive plastic nut//bolt i always replace mine for the bling factor.

 

[GillyC63]

Post a picture?

Will do, tomorrow

 

[Chrishazle]

Not to do with mudflaps, they attach via plastic rivets from in the rear wheel arch, and the ones supplied with the flaps are too short (the voice of experience!!).

 

[Codger49]

Are they not the plastic nuts used to secure the wheel arch liners to the car body?

 

[Trickythemerc]

That was my first thought,most modern cars use them,they are crap.

 

[E55BOF]

Modern-ish; my '94 SL has them (on the front, at least).

Crap-ish; they're still there... but the pin one screws on to has rusted away!

 

[GillyC63]

Think I've worked out they are for the rear cover that stops people seeing what's in the boot, they are ajustable so I assume they are to stop the large metal piece from vibrating.