STOP!! Stop worrying about this and enjoy the damn car. If and when you need to do this to the car, then do your homework. I would say most people that tackle the job don't have the Patience to do the job. If you do it yourself, you will know to watch out not to shear them off and to take your time. Expect the worst, hope for the best and work wisely.

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1979 240D Caledonia Green/cream gone
1982 240D stick Ivory/Palimino
1999 E300D White/grey