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Hi and welcome Bassist,

I'm sure an R5 owner will be along shortly and you could well be right with your diagnosis but a quick check with VCDS could confirm or negate this if a fault code shows up. VW dealers have them, but so do some VW specialists and some friendly forum members if you post your location or have a look here:

http://www.mytreg.com/index.php?/topic/9599-vcds-vag-com-member-locator/

 

Hi guys - thanks for the friendly welcome, much appreciated. I will post further details on the car - which I love and is a relatively standard spec R5 - auto, jet black and c 80 k.. The issue and solution has been searched for exhaustively, by me, and, if I am able, will document the fix once I have located the sensors, at least one of which does not appear on the charts, I am told..

 

The coolant temperature sensor G62 is located under the inlet manifold behind the oil filter housing. The other coolant temperature sensor G83 is in the radiator outlet hose, lower drivers side.

 

hi chaser can you send me a picture of your engine coolant temperature sensor for 2015 vw touareg 262 r line my engine is a 7p

 

@ Bassist - what did I tell you on CT?! Chaser's The Man!

 

your question was answered on clubtouareg

http://www.clubtouareg.com/forums/f43/locating-temperature-sensor-on-2-5-tdi-please-assist-85996.html

 

It seems that Mr Grumpy intervened on the CT forum - members can be a tad aggressive sometimes over the pond - I like to think we are somewhat more tolerant and helpful here

Hope you got your question answered

 

I'll repeat my answer here as per CT with pictures I just took for you

It uses two sensors.

Stand in front of the car looking into the engine bay. Look to the left and down towards the bottom radiator outlet. The L-shape bend that comes out has a sensor. Sensor G83

Then if you look on the right between the oil cooler (heat exchanger) and the intake manifold there is a wire that comes from the head where another sensor sits. Sensor G62

 

You are a gentleman. I will document the fix if I have balls to do it. Thank you.

 

Pics don't really help much you'll just have to search with a mirror as it's well hidden....

Both sensors supply signals to the engine ecu for comparison and can influence fan operation under certain conditions. The ecu will generally use the G62 signals for gauge reading and fan operation and the G83 for control of the electric coolant pump.

Very fiddly job. I am now qualified to put ships in bottles!

 

Thank you also chaser. I think I have located it and it looks as if the removal of the bracket supporting the various lines will need to be necessary per your pics, following which the sensor can just about be got at - though as you say v fiddly still..... Is that right/ all that is necessary? Or is it also necessary to remove the inlet manifold?

 

No there's no need to remove the inlet manifold. You may want to remove that coolant pipe though.

 

Thanks chaser. I will document for posterity.

 

 

Hi Bassist i too had the same problem as you fan was coming on when ignition key was in thus would drain the battery after a while if engine not started, The code i was getting was for the temp sensor (over temp) which i had replaced under warranty but this did still not rectify the problem, The problem with mine was a wiring fault, I think the sensor was about £30 but the dealership that done mine took the manifold off so i had to replace gaskets etc.

 

Thanks - will let you know. What/where was the wiring fault?

 

Hey Basssit,

Some of the natives are rebellng

Post #8 seems concise and to the point:

http://www.clubtouareg.com/forums/f49/rear-cargo-area-rubber-pan-86097.html

 

holy moly. Talk about making a stand!

 

Both barrels!!

 

So that's how you put somebody back in there boot liner! I mean box!

 

 

That guy got totally rinsed. What a tool.

 

All sorted now then Bassist

 

hi chaser sorry to borther u again my Mechanic said that number 5 sensor on your diagram is a sensor number 2 he wants to know is that 7p engine this is what is coming up on my vcds
1 Fault Found:

21501 - Engine Coolant Temperature Sensor 3
P01E3 00 [172] - Electrical Malfunction
MIL ON - Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 9
Mileage: 141880 km
Date: 2023.01.18
Time: 17:29:12

Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 57 °C
Intake air temperature: 13 °C
Ambient air pressure: 990 mbar
Voltage terminal 30: 11.720 V
Unlearning counter according OBD: 40
Accelerator pedal travel: 0.00 %
Coolant temperature at radiator outlet: actual value: 6.9 °C
Heat delivery temperature in cooling system: -273.1 °C
Outside temperature: 4.5 °C
Fuel consumption: 0.00 l/h
Fuel temperature: 44.4 °C
Engine oil temperature: 50.6 °C

 

7p is a chassis designation not an engine code.
I assumed that you have a 3.0tdi engine with a CAS(x) or CVV(x) code which is the diagram posted.
It has a fairly complicated Map controlled split cooling system.
Sensor 3 in your scan report I believe to be the one in the front of the engine block.