What is the normal temperature gauge reading for a BMW?
2 Answers
BMW does not have a water temperature gauge, only an oil temperature gauge. The first checkpoint for engine cooling is the engine oil, and since the engine contacts the cylinder walls, the oil can more accurately reflect the engine's temperature. The optimal operating temperature for the engine is 80 degrees, while the optimal operating temperature for the oil is 100 degrees. Although there is a 20-degree difference between the two, this intermediate temperature does not affect anything, so the oil can better reflect the engine's temperature, making a water temperature gauge unnecessary. Taking the BMW X5 as an example, it is a mid-to-large-sized SUV under the BMW brand, with body dimensions of 4930 mm in length, 2004 mm in width, and 1776 mm in height, and a wheelbase of 2975 mm. In terms of suspension, the BMW X5 features a double-wishbone independent front suspension and a multi-link independent rear suspension.
I've been driving a BMW for several years, and the temperature gauge needle usually points around 90°C when everything is normal. The dial has markings, and it generally fluctuates within the middle green zone, with a safe range roughly between 80 to 100 degrees. The temperature rises within minutes after starting the engine and stabilizes at 90 degrees, indicating the cooling system is functioning well. If it drops below 70, it might be a thermostat issue or the engine hasn't warmed up properly; if it rises into the red zone above 100, you should stop and check, as it could indicate low coolant, a faulty fan, or a clogged radiator. When driving, I make it a habit to monitor the gauge to ensure stable water temperature. In summer traffic jams, overheating is more likely, so I check the coolant level in advance to avoid breakdowns. Regular maintenance, including coolant replacement, is also crucial to prevent rust and maintain cooling efficiency.
