Is a Volkswagen Bora's water temperature of 105 degrees normal?
2 Answers
Volkswagen Bora's water temperature of 105 degrees is not normal. The normal working temperature of the Bora's radiator is 90°C. The car engine requires a certain operating temperature to function properly, and temperatures that are too high or too low are not conducive to the normal operation and performance of the engine. Here is the relevant information: 1. Introduction to car temperature: The heat generated by the engine is difficult to meet the demand with conventional air cooling, so water cooling is widely used in car engines. The function of the cooling system is to keep the engine operating within the most favorable temperature range to improve engine power, reduce engine wear, and fuel consumption. Temperatures that are too high or too low will have adverse effects on the engine's operation. 2. Emergency situation introduction: If the water temperature alarm appears while driving at high speed, you should pull over safely, do not turn off the engine immediately, but let it idle for two or three minutes, and open the engine hood. Because when the water temperature alarm sounds, the engine is in a high-speed operating state, and the heat generated by the engine has not yet dissipated, so it is necessary to let the water temperature drop slightly while idling. This can minimize the damage caused by high temperatures to the engine.
I've been running this repair shop for over a decade, and a Volkswagen Bora with coolant temperature reaching 105°C definitely indicates a problem. During normal operation, the temperature gauge should stabilize at the 90°C midpoint position. If it exceeds 100°C, the warning light should come on. Common causes include a stuck thermostat that fails to open, preventing the coolant from circulating through the main loop for proper cooling. It could also be due to a burned-out radiator fan relay causing the fan to stop working, or a radiator half-clogged with mud and leaves. Another frequent issue is corroded water pump impellers disrupting circulation. Just last week, I repaired a Bora where the water pump bearings had disintegrated, causing the temperature to spike to 110°C. In such cases, you must immediately pull over, turn off the engine, and open the hood to allow natural cooling. Never rush to open the radiator cap, as boiling coolant can spray out and cause severe burns. Wait until the temperature drops below 50°C before checking the coolant level, and feel the upper and lower radiator hoses to check for significant temperature differences.
