I’ve had 3 Westfalias so far and all were open. The flow is controlled by the bottom vent control lever and sliding flaps at vents at bottom rear of front doors. 

Chris

> Wiadomość napisana przez Eric Caron <eric.caron@ICLOUD.COM> w dniu 16.05.2018, o godz. 18:32:
> 
> Hi listers,
> 
>        While happily setting up my van for camping I knocked a cap off a bolt holding on the op top support and it went into the rear ventilation channel.  I took off the small vent that opens and shuts to access the area to retrieve it.  I found that either side of the vent was blocked firmly by foam.  It felt like the kind you would make a mattress topper out of. 
> 
> So, this explains why no matter how much I played with the front and door vent no air seemed to come from the vent. 
> 
> Is this a thing done to the passenger side of the westfalia camper for a reason or did a Previous owner do this for some reason? 
> 
> thanks for any info.
> 
> If done for no good reason I’d like to remove it to see if I can get air flow back there as I like to keep all things working.  If it belongs in there I’ll leave it. 
> 
> Thanks for any info.
> 
> Eric Caron 
> 85 GL Auto Westfalia.