Since we are talking about coolant warning lights......

[MXHOWES at aol.com]

Just wondering.....since all of my 'older' Audi's have had a mechanical  
float device in the tank. My '98 A4 shows a 'pressure' switch in the Bentley.  But 
how does a pressure switch work in a pressurized coolant tank. I've noticed  
that my warning light will only come on with a low level when the engine is  
started the first time in the morning, which is fine but, what if you were  
loosing coolant as you are driving, as long as there is pressure in the  system 
the light will stay off until it could be too  late...???
Jim
 
'98 A4 Avant  Q
''88 80Q (sold)
'85 4KQ ..garage Queen ... for  sale

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