LOL not sure what u mean about the door? the black platic rubber?

lol, if i was you i wouls service the things as made a differeance on mine mate as i was getting poor mpg, when i toke the derv filter out it was V dirty Nps. will keep u post how much i get to a tank till the light comes on, oh an i was doing about 80-85 on M way had a shit load of stuff in the boot to and stuck in traffic for 2hrs! lol