Working on exposing brake pipes front to back, come upon the plastic cover in the recess behind the front wheel arch running to the rear wheel arch. It is held in place by what look like four plastic rivet type things with an allen key (6mm) inner and a star inner inside that. Use of allen key or star driver and they just go round and round (the tool not the rivety thing). Had a bash with a chisel to get them moving but that didn't work either. Any suggestions?

The title to this thread is my favourite of all time.

Anyway, I attacked them with my Allen keys and they came undone.

Having said that, it was not a very satisfying experience as there did not appear to be any sense of them loosening. I just turned them and jiggled them and they fell on my face.

I suspect they have one of these quarter turn and off type arrangements. This seemed to work when I put them back on and they are still there. 2014 5.0 Supercharged Autobiography & 2015 3.0SDV6 HSE Lux Discovery 4
2005 4.2 Supercharged Vogue SE & 2011 3.0SDV6 HSE Discovery 4
2002 4.4 Vogue
2000 4.6 Vogue
2010 Freelander 2 TD4 HSE
2009 Freelander 2 TD4.e 2009
1992 Mercedes 300D
1986 Renault 2.1 Turbo D
1976 Morris Marina 1.8

Yep you have to jiggle and pull at the same time. Present :2008 TDV8 HSE
Gone Audi A5 2.7TDI
Gone Discovery 3 HSE
Gone Mercedes CLK
Gone Range Rover 2.5 DSE

Hopefully doing some jiggling later anyway but will give them another go in the morning. Thanks for the help  .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Well I jiggled and wiggled, and banged and fiddled and would you believe it the first one undid. The next one refused to budge, the last two broke. Pulled the cover off around the second one, cleaned up and refitted with cable ties  .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

You could also use those plastic spiral type screws used for plasterboard I used those when fixing bottom of mudflaps worked a treat. Present :2008 TDV8 HSE
Gone Audi A5 2.7TDI
Gone Discovery 3 HSE
Gone Mercedes CLK
Gone Range Rover 2.5 DSE

Yeah Googsy, good plan (Strange, last week I found a similar thing impaled in my radiator )