Mine does fluctuate from an average of 96 to around 102-104 when I was flogging it when I took it out for a drive just now, very distracting though!
So I should be concerned then? Hmmm, mechanic has changed or checked everything he can think of and also pressure tested the radiator, no problems there. Unless it's a faulty temp sender? The thermo fans work off their own temp sensor don't they?
2008 VRS Wagon. Yellow, very yellow!
Forever blowing bubbles.
Mine does fluctuate from an average of 96 to around 102-104 when I was flogging it when I took it out for a drive just now, very distracting though!
80,000km 1997 MK3 VR6 manual for sale - www.vwwatercooled.org.au/forums/f23/80-000km-1997-manual-vr6-nsw-sydney-67658.html
It could be a blockage or restriction on the water passages in the head of cooling system...therefore does not allow the water to freely circulate.
There's no blockages, system has been flushed twice, thermostat, thermo housing, crack pipe and all the other plastics have been replaced. There's no leaks either, going to try a new sender unit and see what happens.
2008 VRS Wagon. Yellow, very yellow!
Forever blowing bubbles.
Have you checked your auxilliary coolant pump?
Sounds a little like what happened when mine went bad.
Had a brand new one installed about 2 months ago. Gonna try the temp sender and see if it's maybe sending dody readings to the guage.
2008 VRS Wagon. Yellow, very yellow!
Forever blowing bubbles.
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That little unit does make a difference chaps, the Vr system is rather large for the coolant pump thats why they fit the aux, and this too is on when you shut down to stop boil in the head , i would have it fitted again mate. The temps stated here seem the norm though. They do run hot and funny enough i only had this conversation with a poor fellow today who has cooked theirs, the stat collapsed and blocked the flow and she cooked and it was ran,ran and ran now the water comes out the header tank like Mount ETNA or is it ETKAAnyway the conversation was about the Aussie VRs , guys we had 1 out of 3 over in Scotland with heads off at some time and most had divets between 3 and 4. I reckon its the water. Over here ive had 1 head off and the water didnt seem to affect the heads the same. Im sticking with that and it has amazed me as all we used to do was heads on AAA and ABV over there.
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JMac
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I'm probably being a little paranoid but have blown a head gasket before (in another car) and I'm very wary these days of overheating.
2008 VRS Wagon. Yellow, very yellow!
Forever blowing bubbles.
You know there is a good chance that all the pumps are actually dead in our VR6's. Seems to be a common part to break about this time.
One day I might order a new one, but GAP want US$117.02 which is AU$183.60 + shipping in todays money... anyone happen to know what one of these run locally?
Plan B might be to get a pump out of something else and modify the plug to fit... Interesting...
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