Having had a VW Westfalia for 40+ years, I found that just cracking the slide window open slightly to release the inside air pressure helps and now I have a Ducato PCV, I have fitted a handle near the back of the sliding door, just above the window (see picture). Not the most aesthetic work I have ever done but it does the job!
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Having had a VW Westfalia for 40+ years, I found that just cracking the slide window open slightly to release the inside air pressure helps and now I have a Ducato PCV, I have fitted a handle near the back of the sliding door, just above the window (see picture). Not the most aesthetic work I have ever done but it does the job!
View attachment 443421
It really is that easy, add a strap!
If the sliding door is properly aligned (don't presume this will be the case straight out of the factory) and the runners well matained there should be no need to slam a sliding door.