Alain -

Replacing the Expansion Tank Coolant Sensor is a pretty simple job,
usually without the loss of any coolant, because it's located at the top
of the tank, so you should be able to do it yourself.  At a US Dealer I
believe the sensor's about $9.00us.

I usually sell them for $8.00 (VW # 251-919-372) and unlike those USUALLY
sold at the dealership, the ones I sell automatically come with a new
O-Ring, which is probably the culprit in the first place causing your
leak.  The dealer most always sells their sensors WITHOUT the O-Ring
(unless there's been a change recently).

If just the O-Ring is the cause (and I suspect it is), remove the sensor
and check around at a local parts house or hardware store and look
through their O-Ring stock to replace it.  If you have to get the O-Ring
from the dealer (Auuggghhh!), ask for part number N 90240002, which is of
course ridiculously priced at $1.30us.  That should solve the leaking
problem IF the sensor's otherwise OK.

Jim Thompson
Sherwood Automotive * The Old Volks Home
http://www.oldvolkshome.com
jim@oldvolkshome.com (916) 221-5342
84 Westy 2.1 * 62 Beetle Sedan * 90 Fox Wagon

On Sun, 19 Oct 1997 22:41:13 -0800 Alain Thibault <alain@INTERGATE.BC.CA>
writes:
>The Service Clinic Inspection Report revealed an Expansion Tank
>Cooling
>Sensor Leak. I don't really understand what it means and how serious
>this might be. Is it something that can be fixed easily without going
>to
>a Repair Shop ? At the dealer, roughly how much would that be (Please
>specify whether CDN or US dollars)? Thank You for any advices...
>