[Vwdiesel] black tube by coolant bottle what is it for??

[Roger Brown]

Stpndsmnn at aol.com wrote:
> 
> Hi,
> 
> I haven't really ever posted before but I had a question,  I have an 81 diesel Jetta 1.6 NA.  there is a black tube thing on the drivers side by the coolant bottle, it has a vacuum line to it and I think a wire that runs someplace.  Basically I was just wondering what it is for and where that single wire goes that comes out of the end of it??

Could it be a servo for a cruise control?  If so, it would also have a
connection to the throttle linkage.

-- 
   Roger