When my 95 VW Jetta is on there is a Red Warning Light (its looks like a Thermometer with lines coming off of it)

It says that your vehicle is low on coolant.Get the coolant level checked.If low has to be changed.

------------Check out few help links related to your issue.Click the link below:---


Service 4wd warning light on Dash?http://howtobyme.blogspot.com/2011/11/service-4wd-warning-light-on-dash.html

---------
Car Turns OFF due to low oil pressure warning light?http://schematicsdiagram.blogspot.com/2011/12/car-turns-off-due-to-low-oil-pressure.html

---------
Hybrid warning Light ON? http://whatisbyme.blogspot.in/2012/05/2005-toyota-prius-hybrid-warning-light.html

---------
Order Coolant Bypass Tube? http://whatisbyme.blogspot.in/2012/05/1991-toyota-camry-order-coolant-bypass.html

----------
Coolant Leak? http://technoanswers.blogspot.in/2012/04/1994-toyota-camry-coolant-leak.html

----------
COOLANT LEAK AT DRIVER SIDE NEAR FIREWALL?http://schematicsdiagram.blogspot.in/2012/04/2006-cadillac-dts-coolant-leak-at.html
----------
MAF, IAT, MAP and Coolant Level Sensor problem all together?http://schematicsdiagram.blogspot.com/2011/12/maf-iat-map-and-coolant-level-sensor.html

----------
Engine Coolant Temperature (ECT) Sensor Replacing?http://schematicsdiagram.blogspot.com/2011/12/gmc-engine-coolant-temperature-ect.html Loosing Coolant?http://whoisbyme.blogspot.in/2012/06/loosing-coolant.html
---------- Coolant temperature sensor dies again and again?

http://schematicsdiagram.blogspot.com/2012/01/coolant-temperature-sensor-dies-again.html
----------- Where to Add Coolant?http://repairhelpcenter.blogspot.in/2012/06/2000-daewoo-lanos-where-to-add-coolant.html
-----------
------------ Blue Water Warning Light on Dash?http://whatisbyme.blogspot.in/2012/07/blue-water-warning-light-on-dash.html

--------------

This will help.
Thanks.

Check you radiator fluid it is low