Why does the coolant light turn on when driving 75 MPH on the motorway?

2012 SEAT IBIZA
84,000 MILES • 1.2L • 4 CYL • 2WD • MANUAL
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MANDY LEE
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I drive my car daily as a carrier so it i stop and start all day. My car runs great no lights, but when i go on the motorway and hit 75 MPH-ish my red coolant light comes on and beeps. The car still runs great, no issues and after 5 minutes the light goes out. still no issues, runs great.
Aug 15, 2022 at 8:21 AM
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STRAILER
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This means the engine is overheating, I would service the cooling system and make sure you do not have an obstruction like a plastic bag stuck in front of the radiator. Also, check the coolant level in the radiator and coolant reservoir. This guide and video should help:

https://www.2carpros.com/articles/engine-overheating-or-running-hot

and

https://youtu.be/GSE9skKnOgY


Do you hear the radiator cooling fans running when the light is on? Please run down these guides and report back.

Aug 15, 2022 at 1:10 PM