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Old 10-10-18, 11:23
Empyrean's Avatar
Empyrean Empyrean is offline
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Location: Leighton Buzzard
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T4 Post Icon Temp gauge problem

My 2003 T4 has always got to 90 degrees and sat there happily whether it's ice and snow or 38 in a traffic jam. Last year the gauge started dropping off, sometimes to "cold" when I was motoring so I took it to my garage who fitted a new sensor and it seemed to cure the problem.

Blow me down if it hasn't started again. I've just done a Europe trip and for the first 6 weeks of driving nearly every day it was perfect 90 all the way then suddenly in the last week it started again. Sometimes just dropping slightly below other times down to about 45.

I wasn't unduly worried as, as long as it doesn't go above 90 I think I'm ok? But there's something not right.

Anybody else had this or have any ideas please?

Thanks

Chris
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  #2  
Old 11-10-18, 12:15
jets jets is offline
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Location: Adelaide South Australia
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Default Re: Temp gauge problem

Quote:
Originally Posted by Empyrean View Post
I took it to my garage who fitted a new sensor and it seemed to cure the problem.
Did he fit a genuine sensor or an Ebay special out of China?
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  #3  
Old 14-10-18, 11:17
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Empyrean Empyrean is offline
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Default Re: Temp gauge problem

As far as I know it was a genuine sensor. He's the garage in my village and I know him pretty well. If it's not a VW part I think he would have chosen a good alternative, he's always been very straight .

Having said that...

Could the problem be that it's not a VW part? Is it something I should be worried about?
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  #4  
Old 14-10-18, 11:25
mindriot mindriot is offline
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Location: Newcastle
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Default Re: Temp gauge problem

the instruments often lie, they smooth the reading so it doesnt reflect small fluctuations or deviations. You as the driver get to see it sit nice and reliably on 90 most of the time

Aftermarket sensors have widely proven themselves to be a bad idea, better to use VW or OEM equivalent.

Could actually be a stuck open thermostat and your sensor is telling you the truth as the engine coolant is being excessively cooled.
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