Per  Bentley - Pg 19.13

Coolant Expansion Tank - The tank with the Coolant Level Sensor

Refill Tank  - the tank accessible through the rear service hatch/
license plate

Regards,

John Rodgers
88 GL Driver
88 GL Volksiebus

Larry Alofs wrote:

>I have never understood the use of the term expansion tank in
>this context.  I believe that on American cars with "open"
>cooling systems, the terms expansion amd overflow are often
>used interchangably.  It's the tank where the extra coolant
>overflows to when it gets hot and expands and doesn't all fit
>in the radiator. A "closed" system on the other hand, is not
>normally expected to overflow, and has a tank with an air
>space to allow the coolant to expand when it heats up without
> producing too much pressure. This can be called an expansion
>tank.
>  When peering into the engine bay from the rear of the van,
>the left hand tank is the "pressure tank" and the one on the
>right is the "overflow tank". IMHO :-)
>
>Larry A.
>
>
>---- Original message ----
>
>
>>Date: Mon, 27 Feb 2006 13:41:56 -0600
>>From: John Rodgers <inua@CHARTER.NET>
>>Subject: Re: [VANAGON] different expansion tank question
>>To: vanagon@GERRY.VANAGON.COM
>>
>>Marty Kulmus wrote:
>>
>>
>>
>>>Thanks for all of your inputs. I am sorry for mixing my
>>>
>>>
>metaphors, I now
>
>
>>>know the proper names and locations of Mr. Expansion and
>>>
>>>
>Overflow. I now
>
>
>>>have to get work on testing.
>>>
>>>Marty
>>>
>>>
>>>
>>>
>>>
>>>
>>Well, it's sort of like this. If you were  instructing a bunch of
>>doctors on removing the appendix but were calling it the
>>
>>
>uvula all the
>
>
>>doctors would be looking in the throat trying to understand
>>
>>
>what you
>
>
>>were talking about.
>>
>>Ah, well. We all goof  it at one time or another, and me more
>>
>>
>often than
>
>
>>not!! :-)
>>
>>Regards,
>>
>>John Rodgers
>>88 GL Driver
>>88 GL Volksiebus Driver
>>
>>
>
>
>
>