Front wheel arch filth

[Maxz]

Decided to give the car a long overdue thorough spring clean. I always clean inside of the rear wheel arches, which are easily accessible as the arch liner sits about an inch up from the edge. However the front liner is clipped right up against the edge of the arch rim. Curiosity got the best of me so I prised the middle of the clips out, which releases the claws of the lower section (see image). There are 4 to remove for each arch. Pulling the liner away as shown, I ran my fingers along the inside of the arch rim. See the results! Appreciate modern cars have good corrosion resistance, but over a long period this muck holding moisture could eventually lead to the dreaded arch bubbling you see on older vehicles. Wasn't a tough job to clean it out, probably a once a year or two job.