VW T4 Forum - VW T5 Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
73 Posts
Discussion Starter #1
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
 

·
Registered
Joined
·
73 Posts
Discussion Starter #3
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?
 

·
Registered
Joined
·
3,877 Posts
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.
 
1 - 4 of 4 Posts
Top