What is the reason for the Octavia water temperature gauge light?
2 Answers
Octavia water temperature gauge light is on because: there is a fault in the engine's cooling system, which prevents it from ensuring the cooling effect on the engine. This not only wears out the internal parts of the engine but can even lead to cylinder scuffing, resulting in very high repair costs. Therefore, when the water temperature gauge light comes on, it is essential to identify the cause. If the radiator leaks or the pipes crack, coolant leakage will occur. Even if coolant is replenished, the warning light will come on again after some time. The thermostat itself is a valve that controls the flow path of the coolant. If it malfunctions, it will definitely hinder the flow of the coolant.
When the temperature gauge light came on while driving my Octavia, I remember being really scared and immediately pulled over to check. Actually, the temperature light indicates an engine overheating warning, most commonly due to insufficient coolant or a leak. In my case, I found the coolant reservoir was almost empty, probably due to a leak in the radiator or water pump. It could also be a stuck thermostat or a non-functioning fan failing to dissipate heat. It's important to develop a habit of regularly checking coolant levels, keeping it between the min and max lines, especially before long trips. If the light comes on, don't keep driving—shut off the engine immediately to cool it down, open the hood to dissipate heat, and top up with distilled water or coolant as an emergency measure. The mechanic said ignoring it could lead to engine cylinder damage and costly repairs. It's best to have a professional shop inspect the cooling system or sensors—one repair should fix it.
