Cooler thermostat

[porkkis]

3 pin new style multifunction sensors are affected by the wind and that causes the temp to virtually drop at open road traffic. Use some polyethene or similar to insulate the sensor.
I've done it. Now the gauge is at 90 and does not drop a bit.
Or just live with it. The engine temp is around 90 as it should but the gauge just shows wrong figures...

[Billman]

@Porkkis
Where is this sensor?

[Doug_RS2]

3 pin new style multifunction sensors are affected by the wind and that causes the temp to virtually drop at open road traffic.

I have wondered why my water temps keep dropping while driving - I have changed the thermostat several times(with different types) and bled it umpteen times - I don't have the ducting around the rad anymore - so this is what it is - WOOHOO - I'll test it by adding a cowel to the sensor - Cheers Porkis

[audiman]

No way! Mine reads very low when driving! I too have removed the coweling from around the rad. I just thought that sensor was duff, but it does work fine in traffic

[s2avant]

Mine does the same since I changed the sensor. My aux rad is in the bin but the air flow didn't affect the old 4 pin sender. With the new 3 pin type I get 90º in town but when on a run it drops 2 or 3 bars.

I'm changing the thermostat again though as the hall sender needs changing asap (evian down the back of the pulley isn't working anymore)

and if your doing the sender you may as well do the cam belt...

and if your doing the cam belt you may as well change the pulleys and water pump...

and if your doing the waterpump you may as well do the thermostat and that little water hose...

and so on and so on.

Ben

[audiman]

Sounds like mine has a different fault then!! I have the old 4 pin sender, maybe its died at last

[Pete_RS2]

Use some polyethene or similar to insulate the sensor...

porkkis,
Can you show a picture of how you've done this ?

[S2-racer]

question, my temp now sits at the bottom of the gauge on the open road, and only reaches half way to 90 in traffic.

is the thermostat broke?? or the sender??

[S2central.net]

I'd say the thermostat - they aren't known for a very long life... Its an arsey job on the S2 - change the two water link hoses when you are there.

The only way to test the sender is to remove it when you have the coolant system empty. Then measure the resistance on the appropriate pin with some hot water - or hey just boil the kettle, pour some water into your least favourite mug and pop the sensor into it - whilst its wired into the car with the key on - your guage should show ~100 celsius !


Paul

[Sweeper]

I run with this VR6 80C thermostat and new coolant sensor. Show's about 80C all the way , traffic shows about 94C.

Nice.

[porkkis]

80C is a turning point in ECU AKFAIK. From 80C on engine is interpreted to be warm and below that cold. (AFAIK again).

I would never use a cooler thermostat in s2. Change your cooler ones to std.

[T2Andy]

if sat in traffic about 20 mins or so i read 2-3 notches above 90 is this normal.ican hear fan kick in but not for long.fanks Andy.

[audiman]

Normal

[alg]

Just to put this one to bed, so to speak. Can anyone provide the part number for the correct thermostat for the ABY RS2/S2 for the UK market. Please ?

[alg]

I think I have answered this myself 069121113 94-97oC via vagparts. Only one listed. any comments ?