blinking water gauge light 90 cabriolet

The light in the water gauge in my '87 Scirocco is multi-function. It indicates over-temp and under-level. That is, not enough coolant in the system. Sometimes it lies* and will indicate low level until I hit a bump or the car warms up.

- Bill

--------

• Yeah, I know. The detector is going, but it's funnier to say "it lies." :)

The low-level warning is very sensitive...it doesn't take much to trigger it. So even if you have some coolant in the reservoir anyway, make sure it's at "max" when cold. mine gets triggered when it falls below "min" (and the difference between min and max is very little).

Coolant level low Bad Coolant Low sensor in bottle Bad Gauge Bad Coolant Temperature sensor maybe. Bad wiring

later, dave (One out of many Daves)

On mine it's something like an inch. I've been assuming it's failing, as I said in my footnote, since it didn't do this for the first four or five years I had the car, but has been doing it intermittently, especially when it's cold out, since then. And it happens so infrequently, I just haven't motivated myself enough to replace the thing yet.

- Bill