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Old January 21st, 2011, 09:49   #1
Veteran Member
Join Date: Jul 2008
Location: Calabasas
TDI(s): '02 bug
Default red & blue dash lights on?

Upon cold start up, my girlfriends '00 NB can get a red, red flashing, or blue light, she thinks it might be the same light turning colors. They will go off after a few minutes. It can be freezing in the AM here. Is this a temp idiot light?

We don't have an owners manual yet, just a service.
Any pics here of the dash lights explaining what they are?

'01 NB Blue
E-Diesel mod
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Old January 21st, 2011, 09:54   #2
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Join Date: Apr 2009
Location: MB

Check your coolant level. I think the proper colour on startup is blue.
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Old January 21st, 2011, 09:55   #3
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Join Date: Jul 2010
Location: Campbell, CA
Fuel Economy: 45 mpg

The coolant temperature light can come on either blue or red. It should be blue upon start up and then go out when the car reaches operating temp. If it beeps and flashes red its telling you the car is low on coolant. Occasionally I have seen the red coolant light flash and there is coolant and just the sensor in the expansion tank needs to be cleaned. Just be careful on the NB as there is no temperature gauge and when the red coolant light flashes you need to pull over immediately and check it.
Krystle, Manager at Alternative Solutions, Inc
(408) 879-9062
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Old January 21st, 2011, 11:59   #4
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Join Date: Jul 2008
Location: Calabasas
TDI(s): '02 bug

It only displays upon cold start up.
I'll check the coolant/sensor.

'01 NB Blue
E-Diesel mod
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Old January 21st, 2011, 13:30   #5
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Join Date: May 2010
Location: Kansas City, MO

Yup I will also say, I myself having a Beetle, that the blue color is saying that the car is cold and you should keep your revs low if you like your turbo in one piece for the long haul etc. flashing red and beeping means low coolant and I think that it does something else to indicate over heating condition.
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