汽車保養時，需要檢查以下幾種關鍵液體，以確保汽車的正常運行和延長使用壽命：

　　When maintaining a car, it is necessary to check the following key fluids to ensure the normal operation of the car and extend its service life:

　　一、機油

　　1、 Engine oil

　　作用：機油是發動機的“血液”，主要作用是潤滑發動機的運動部件，防止摩擦和過熱，同時還具有清潔、冷卻、防銹和密封等功能。

　　Function: Engine oil is the "blood" of the engine, mainly used to lubricate the moving parts of the engine, prevent friction and overheating, and also has functions such as cleaning, cooling, rust prevention, and sealing.

　　檢查方法：使用機油尺檢查機油的油位，確保其在建議的范圍內。同時，檢查機油的顏色和稠度，如果機油變得發黑、粘稠或有異味，說明需要更換。

　　Inspection method: Use an oil dipstick to check the oil level and ensure it is within the recommended range. At the same time, check the color and consistency of the engine oil. If the oil becomes black, viscous, or has an odor, it indicates that it needs to be replaced.

　　二、冷卻液/防凍液

　　2、 Coolant/Antifreeze

　　作用：冷卻液也稱為防凍液，主要作用是調節發動機溫度，防止發動機過熱或過冷，從而保護發動機的正常運行。

　　Function: Coolant, also known as antifreeze, is mainly used to regulate the engine temperature, prevent the engine from overheating or overcooling, and thus protect the normal operation of the engine.

　　檢查方法：檢查溢流水箱中的冷卻液液位，確保其位于最小和最大標記之間。如果冷卻液液位持續較低，可能存在泄漏問題，需要及時檢查并補充。

　　Inspection method: Check the coolant level in the overflow tank to ensure it is between the minimum and maximum markings. If the coolant level remains low, there may be a leakage problem that needs to be checked and replenished in a timely manner.

　　三、變速箱油

　　3、 Transmission fluid

　　作用：變速箱油主要作用是潤滑變速箱的齒輪和軸承，減少摩擦和磨損，同時幫助變速箱散熱和清洗雜質。

　　Function: The main function of gearbox oil is to lubricate the gears and bearings of the gearbox, reduce friction and wear, and help dissipate heat and clean impurities from the gearbox.

　　檢查方法：檢查變速箱油位，確保其處于正確的水平。同時，觀察變速箱油的顏色和質地，如果呈黑色、有燒焦味或含有顆粒，可能需要更換。

　　Inspection method: Check the transmission oil level to ensure it is at the correct level. Meanwhile, observe the color and texture of the transmission oil. If it appears black, has a burnt smell, or contains particles, it may need to be replaced.

　　四、制動液

　　4、 Brake fluid

　　作用：制動液是剎車系統的重要組成部分，它能夠將力從制動踏板傳遞到制動系統，使車輛能夠平穩、安全地停車。

　　Function: Brake fluid is an important component of the braking system, which can transmit force from the brake pedal to the braking system, enabling the vehicle to stop smoothly and safely.

　　檢查方法：檢查主缸儲液罐中的制動液液位，確保其在推薦范圍內。同時，觀察制動液的顏色，如果顏色變暗或受到污染，可能需要更換。

　　Inspection method: Check the brake fluid level in the master cylinder reservoir to ensure it is within the recommended range. Meanwhile, observe the color of the brake fluid. If the color becomes darker or contaminated, it may need to be replaced.

　　五、動力轉向液

　　5、 Power steering fluid

　　作用：動力轉向液主要作用是幫助轉向系統更輕松、更平穩地工作，提高駕駛的舒適性和安全性。

　　Function: The main function of power steering fluid is to help the steering system work more easily and smoothly, improving driving comfort and safety.

　　檢查方法：找到動力轉向液儲罐，并按照車輛說明檢查液位。如有必要，請加滿并確保液體清潔且無碎屑。

　　Inspection method: Find the power steering fluid storage tank and check the fluid level according to the vehicle instructions. If necessary, please fill up and ensure that the liquid is clean and free of debris.

　　六、玻璃水

　　6、 Glass water

　　作用：玻璃水主要用于清潔汽車車窗和雨刮器，確保駕駛時的視野清晰。

　　Function: Glass water is mainly used to clean car windows and wipers, ensuring clear visibility while driving.

　　檢查方法：檢查玻璃水儲液罐的液位，確保其充滿合適的清洗液溶液。特別是在天氣惡劣的季節，需要確保玻璃水的充足。

　　Inspection method: Check the liquid level of the glass water storage tank to ensure that it is filled with a suitable cleaning solution. Especially in harsh weather seasons, it is necessary to ensure sufficient glass water.

　　綜上所述，汽車保養時需要檢查機油、冷卻液/防凍液、變速箱油、制動液、動力轉向液以及玻璃水等關鍵液體。這些液體的正常與否直接關系到汽車的性能和壽命，因此務必定期檢查并及時補充或更換。

　　In summary, during car maintenance, it is necessary to check key fluids such as engine oil, coolant/antifreeze, transmission oil, brake fluid, power steering fluid, and windshield washer fluid. The normality of these liquids is directly related to the performance and lifespan of the car, so it is essential to regularly check and promptly replenish or replace them.

　　本文由 濟南寶馬汽車保養 友情奉獻.更多有關的知識請點擊  http://www.nanofluidizer.com   真誠的態度.為您提供為全面的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.

　　This article is a friendly contribution from Jinan BMW Automotive Maintenance For more related knowledge, please click http://www.nanofluidizer.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.