Mk2 leon cupra temperature gauge

[tatestar1]

Hi all
Hope someone can help. I have noticed over the last week when driving the car gets up to temperature on gauge and the will slightly drop between 90-80 degrees on a few times on my journey home which takes around 40minutes. I remember having this problem on my mk4 golf 1.8t and I resolved by replacing the coolant temperature sensor. I have read the ecu and no fault codes. I know this code be thermostat but does the cupra have a coolant temp sensor as I couldn't find the part.

 

[AlexK1]

Most likely the thermostat gone, mine was doing the same recently so replaced it. There is a temp sensor located just below the thermostat housing


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[tatestar1]

Is there a how to guide to replace thermostat anywhere. Thanks

 

[AlexK1]

Not that I've seen, but it's alternator off, and throttle pipe to get access. Takes around 2-3 hours to do


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[tatestar1]

Yeah I thought as much. Thanks for the help

 

[manhota]

Good garage will charge max £150 to change the thermastat including the part