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Originally Posted by 27litres
So the orange actuator seal is an original C4 part?
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Yes, an original C4 part from my 1994 Audi 100q. Even the ones from a year later, as found in the two C4 A6 vehicles that I have, seem to be of a lesser quality than the orange boot.
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Is the Bosch part (the spark plug boot) one you think is a viable alternative?
Have you tested it?
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As I mention in the PDF document, the Bosch boot failed after about a year of service in my A6 Avant. The rubber that it is made of is too soft (not stiff enough) and started to allow the rear hatch to lock when going over bumps on a warm day.
It hasn't split yet though. So, it seems that the rubber needs to be of a certain rigidity to work properly.
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Is a seal made to the original design a candidate for 3D printing?
Sorry for so many Q's!
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Yes! I think that it is a candidate. The TPU and the Ninjaflex that I have would both make seals of sufficient rigidity I believe...maybe too rigid...but I will have to make one to find out.
