Red coolant light. If the engine coolant temperature increases further, the indicator light/warning light illuminates in RED continuously. Colors include blue, yellow, green, red, … If this light activates while you are driving, it is telling you that your engine is hot 5 0 1. 1. At this time, the engine may be overheating. Then the blue light comes on to indicate the vehicle is cold and the light … Robs317 New Member. Iv searches the forums before posting and seen similar things however yesterday my 2017 s3 said coolant low stop engine for about 5min then went off and didn’t come back on all the way home. Your coolant light might be signs of a more major engine problem. This can be confusing for people who don’t know what each color indicates. I brought the car to the dealer and they did a 60000 mile service which included a coolant service. Is this one next to the upper radiator hose on the block? Robs317 Oct 31, 2020. By the way, the thermostat is on the lower radiator hose. I suspected it reported low coolant level and looking at the coolant expansion tank it look a bit worst for wear (i.e being a bit mucky inside the tank but coolant colour was good). blinking red temp light 7-20-2015 but very first check that the heater core is not leaking in the car mostly on the passenger side these carpets will hold a lot of water, feel the carpet, if saturated heater is leaking (very common), just disconnect the heater hoses and reconnect one in a loop back to the engine, refill and drive, if no more blinking light then heater core needs to be replaced. Blue coolant light = engine cold Flashing blue coolant light = fault in the coolant monitoring system Flashing red coolant light = low on coolant Steady red coolant light = engine overheating, pull over and stop engine IMMEDIATELY and … When the indicator light/warning light blinks in RED or illuminates in RED, safely stop the vehicle as soon as possible, and refer to the emergency steps for the engine overheating. Coolant (Antifreeze) can be found in more than 1 color. We will break it down for you to better understand why this liquid comes in a multitude of colors. When I picked up the car and started driving home the coolant … I had the same issue with the coolant red light flashing on my skoda fabia but not reporting any fault codes on my diagnostic tool. A repair to a cracked engine block or … Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Coolant Light Comes On. The red coolant light is on after driving about 20 miles or after running the air conditioner for 10 miles. When you get a crack in the block or the intake gasket you will leak coolant and oil, usually slowly at first. I have a 2011 Subaru outback and recently the coolant warning light either flashes red or stays red for minutes. You may not notice the difference at first, thinking that your tank is full. The red flashing on startup means the car is slightly low on coolant, the heat of the engine is expanding the coolant and the level goes over the minimum in the coolant bottle and turns the flashing red light off. Where is the engine coolant sensor located? The engine temperature warning light on the dashboard generally appears as a thermometer with wavy lines next to it or a box with wavy lines inside of it.