Looks about right, there should be 4 wires connected to it.

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Yes there was 4 wires going to it

Umm, never seen one with that type of connector on it before. Can you post a photo that's zoomed out a bit?

I will get another pic tomorrow.

 

From the few pics I can find in the net they are in that sort of area, with a choice of 3 different connections

 

square 4 pin

D-shaped 4 pin

D-shaped 2 pin

D shaped 4 pin sounds familiar. I don't have a mkI anymore so I can't go and look. The plug should pull off towards the back of the car.

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The one I have shown in the pic pulls off towards the back of the car.

 

I know these are ebay ones and not genuine ones but these are the ones I have seen about on the net

 

D-shaped 4 pin

http://www.ebay.co.uk/itm/VW-Water-Coolant-Temperature-Gauge-Sensor-059919501A-Temp-Sender-Clip-O-ring-/171011609480?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27d1161388

 

D-shaped 2 pin

http://www.ebay.co.uk/itm/VW-COOLANT-TEMP-TEMPERATURE-SENSOR-MK4-GOLF-PASSAT-etc-/171011609994?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27d116158a

 

Square 4 pin

http://www.ebay.co.uk/itm/VW-COOLANT-TEMP-TEMPERATURE-SENSOR-GOLF-MK4-PASSAT-POLO-/171011609436?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27d116135c

Looks like you need the square 4 pin then. Genuine only though.

Don't buy a cheap eBay one though, get a proper one from Skoda or TPS. Or someone like rainworth Skoda who sell genuine parts on eBay. Buy a cheap one and you will have problems.

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I wont be getting a cheap ebay one. It was just the easyist was to show the different connection types.

 

Anyone have a rough idea on how much a genuine CTS cost?

About £30?

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update time on this,

 

a mate of mine borrowed a code reader thing (not VCDS), it can turn of service lights, read codes etc, (I know nothing abouth these things)

 

I asked him to plug my Octavia into it, no codes shown up but it did say glow plug relay short curcuit.

 

Could this have something to do with it?