Plastic Trim

[Pedro]

If you bend a bit of plastic trim so it goes white at the stress point, gently heat with a heat gun or hairdryer, and in a couple of ticks, the white has gone, the plastic is no longer under stress and wil last alot longer!

[mapblue]

Same thing applies to the black bits on your bumpers,when they go all white and the back to black wont keep it black.Heat them up with a hot air gun till they go black again and they will stay black.