Per the title, my low mileage Justa is overheating; yellow temp warning followed by a red warning. When I get the red warning, I immediately pullover and allow the engine to cool before proceeding. The fan is running and the coolant level has not dropped. I'm guessing I just need a new thermostat. Any reason to buy an oem part rather than one of the generic replacements? All the DIY videos are for the "S" model. Is there a Justa replacement guide out there somewhere?

 

I wonder if there is a problem with your water pump.

Here's the guide for the T-stat. Make sure you get a new plastic pipe between the t-stat and the water pump. They almost always crack when you try to remove the t-stat.

 

Sorry I can't see your link for a Justa T-stat change. How about generic thermostats?

 

Sorry about that ... try this:

https://www.newtis.info/tisv2/a/en/r...-lines/Him8vzf