Bertarosa Posted May 12, 2015 Report Share Posted May 12, 2015 1998 Seat Arosa 1.4 AutoHi, I have a temperature issue with my newly acquired Arosa.If left to idle, the car reaches normal operating temperature, the fan kicks in normally, and the heater is nice and hot.Take the car up to speed and the temperature descends rapidly to the bottom of the temp gauge and heater no longer blows particularly hot air. It would seem that sender unit is functioning because heater behavior suggests that the engine is really cooling down.First assumption was thermostat jammed open, but we have replaced this and symptoms remain.Service history suggests temperature sender has already been replaced a month ago.Any ideas for next step? Quote Link to comment Share on other sites More sharing options...
Skezza Posted May 12, 2015 Report Share Posted May 12, 2015 You really need an OBD2 tool for this. I don't trust those dash gauges. Quote Link to comment Share on other sites More sharing options...
Dblock Posted May 13, 2015 Report Share Posted May 13, 2015 Airlock? Quote Link to comment Share on other sites More sharing options...
Skezza Posted May 13, 2015 Report Share Posted May 13, 2015 Airlock?Possibly, but I'm wondering if his temperature sender to the dash is going haywire. Quote Link to comment Share on other sites More sharing options...
Patronu Posted May 15, 2015 Report Share Posted May 15, 2015 I had the same issue so give it some time. When I changed my thermostat only after ~1000 miles the engine started to warm up properly at highway speeds. Quote Link to comment Share on other sites More sharing options...
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