No, it is not.  The gauge sender is the little one with a single
connector on the thermostat housing, and the temp sender for the ECU is
the big one next to it with the large two contact plug type connector.

It needs to be removed and heated in water to test, and you need an
ohmmeter and thermometer and compare the readings with those in the
Bentley.  You need to plug the hole when you remove it to avoid losing
coolant, so, the easiest way to check it is to buy a new one and see if
it solves the problem!  Take it back if it doesn't.  Or see if someone
on the list will send you a bad one to use as a plug!

Why did someone say it needed checking?  Give us your symptoms and you
will get plenty of replies.

Stuart MacMillan
Manager, Case Program
800-909-8244 ext. 8208
Fax: 206-269-6360

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