Could someone tell me please if the two coolant temperature sensors are both the same on this car?..The Elsa manual shows G62 and G83.

The G83 is a 2 terminal unit,  part# 06A 919 501A and the G62 is a 4 terminal unit, part# 059 919 501A and yet my Skoda dealer tells me that it only has part# 06A 919 501A listed.

Well someone is wrong, but since the sensor on the left side is such a pig to get to, I can't tell!..Does anyone have any knowledge please?

The car has just had a new thermostat (A 4 hour job) and although now getting up too normal temperature, it still seems to take take a while to get there and although the right hand sensor is a breeze to get to, the left one isn't!..VCDS doesn't show any problems other than it picked up a number plate bulb failure that I'd  replaced 3 weeks earlier.

Furthermore, I can't find any wiring diagrams in my Elsa manual, am I missing something?

Cheers

Rick

Wiring diagrams are available from here: https://erwin.skoda-auto.cz/erwin/showHome.do

 

How long is too long to warm up and what's your ambient temperature?

 

You can use the measuring blocks in VCDS to watch the temperature of both sensors which may highlight any issues there before replacing.

Both shown as 2-pin on current flow diags.

Both the 06A part apparently. Here (Item 18) and here (item 10). Edit: can't guarantee that isn't the same one shown in two different pages, if you see what I mean.  One's described in the CFDs as engine coolant temp sensor, the other one as radiator outlet temp sensor, not sure if the etka pages make sense w.r.t. those?

Edited 18 October, 20178 yr by Wino

8 hours ago, Wino said:

Both shown as 2-pin on current flow diags.

Both the 06A part apparently. Here (Item 18) and here (item 10). Edit: can't guarantee that isn't the same one shown in two different pages, if you see what I mean.  One's described in the CFDs as engine coolant temp sensor, the other one as radiator outlet temp sensor, not sure if the etka pages make sense w.r.t. those?

 

Hi Wino - The plumbing looks quite different as can be seen here with number 2 being the G62 temperature sender on the passenger side and the radiator coolant sensor being G83 which sits behind the the diesel filter on the drivers side. G83 has 2 wires and is accessible without removing the filter, despite what the manual says, whereas G62 is a different kettle of fish. 

Having changed the thermostat all seems to be much better and generally the car runs at the 12 o'clock position (90 degrees) but I took a trip the other day 35km's to get fish and chips and it sat under and yet on the trip home it was at normal all the way, hence me wondering about sensors and which one controls the gauge. Ambient temperature was around 26 degrees (C) at the time and the fish and chips were excellent!  

9 hours ago, langers2k said:

Wiring diagrams are available from here: https://erwin.skoda-auto.cz/erwin/showHome.do

 

How long is too long to warm up and what's your ambient temperature?

 

You can use the measuring blocks in VCDS to watch the temperature of both sensors which may highlight any issues there before replacing.

 

Ambient temp was around 26 degrees (C) and the drive was around 35 minutes..I'll see how things go and monitor the outputs but I'm curious as to which sensor supplies the gauge?

Neither sensor directly controls the gauge. Both are wired into the engine ECU, and are read by that.  Results will be shared with other modules as necessary via CAN.

I would expect that G62 info would be used to drive the dash gauge, and G83 the radiator fan controls. Never owned a car with a G83 though, so speculative.