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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKV-A5 Golf/Jettas

VW MKV-A5 Golf/Jettas Discussions area for A5/MkV Jetta/Golf (2005/2006 PD and 2009 CR).

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Old December 29th, 2007, 09:55   #1
straightliner
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Join Date: Oct 2006
Location: n.w.indiana
TDI(s): 09 TDI Jetta
Default Red temp light on after cold start?

After my 06 was parked outside for about 10 hours in 10 degree weather plus the appropriate windchill. I had the red thermometer light on my speedo come on after i started it. I then parked the car in my heated garage until the following day and have not had the problem since.

Anybody else experience this??

Chris
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Old December 29th, 2007, 12:35   #2
vwluca
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Location: South shore from Montreal, Canada
Default

If it's OK when warm then it must be because your coolant level is a little low. These cars are very sensitive when a little low. When your engine is cold the coolant level decreases a little and when it warms up, the volume increases a little so this is why your light goes off.

Make sure you use G12 coolant only mixed with 50/50 water.

DON'T OVERFILL ! cause you'll have problems later on caused by coolant migration. ( you might want to read posts on this forum.

Luc
Montreal, Canada
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