1、滲漏油液：這個在用了一定年限，比如10幾萬公里以上的寶馬車上容易出現，這個主要就是相應的密封墊、密封圈、油封等出現老化損壞導致，不要一上來就換總成。

1. Leakage of oil: This is prone to occur in BMW cars that have been used for a certain period of time, such as over 100000 kilometers. This is mainly caused by aging and damage to the corresponding sealing gaskets, sealing rings, oil seals, etc. Do not replace the assembly immediately.

2、燒機油：對于老款的寶馬車，比如N系發動機車型，燒機油一般是氣門油封損壞導致的，單獨更換這個小東西就行。對于B系發動機，目前聽到多的是B48發動機機油消耗快，這里主要有2個原因，一是氣缸蓋罩存在裂縫；二是機油濾底座損壞，對于機油濾底座，目前網上已經鋁合金材質的升級版。

2. Oil burning: For older BMW cars, such as the N series engine model, oil burning is usually caused by damaged valve oil seals. Simply replace this small item separately. For B-series engines, the most common reason heard so far is that B48 engines consume oil quickly. There are two main reasons for this: first, there are cracks in the cylinder head cover; The second issue is that the engine oil filter base is damaged. For the engine oil filter base, an upgraded version made of aluminum alloy material is currently available online.

3、B48爆水管：其原因是發動機在某些工況下，真空調解閥關閉，冷卻液流不到缸蓋，從而使缸蓋局部溫度過高，這就造成了水管缸蓋測的接頭容易高溫老化。另外，在發動機運行過程中，抖動會在接頭和水管處產生應力，也會加速塑料接頭的疲勞老化。這個同樣有改良、加強的回水管購買，有加強尼龍塑料的，有硅膠的，還有鋁合金接頭，1、2百就能買到。

3. B48 burst water pipe: The reason is that under certain operating conditions, the vacuum regulating valve of the engine is closed, and the coolant cannot flow to the cylinder head, resulting in a local high temperature in the cylinder head. This causes the joint of the water pipe cylinder head to be prone to high temperature aging. In addition, during engine operation, shaking can generate stress at the joints and water pipes, and also accelerate the fatigue aging of plastic joints. There are also improved and reinforced return pipes available for purchase, including reinforced nylon plastic, silicone, and aluminum alloy joints, which can be purchased for 1 to 200 yuan.

4、空調出風口面板損壞：有的車主可能花了1、2千去更換原廠的總成，實際只需單獨更換出風口面板就可以了，網上買零件也就100-200的價格，動手能力強的自己也能搞定。

4. Damaged air conditioning vent panel: Some car owners may have spent 1000 to 2000 yuan to replace the original assembly, but in reality, they only need to replace the vent panel separately. Buying parts online can cost 100-200 yuan, and even those with strong hands-on skills can handle it themselves.

5、分動箱損壞：一般是內部摩擦片燒蝕，更換摩擦片就好。

5. Transfer case damage: Generally, the internal friction plates are burned out, just replace the friction plates.

6、X5/X6手剎損壞：這個一般是內部電機的負極熔斷導致的，焊接上就行，多直接更換這個小電機，幾百塊就搞定。所以，在花幾千元換總成之前，不妨仔細檢查下這個電機。

6. X5/X6 handbrake damage: This is usually caused by the negative pole of the internal motor being blown, just weld it on, and replace this small motor directly. It can be solved with a few hundred pieces. So, before spending thousands of yuan to replace the assembly, it's worth carefully checking this motor.

7、內門把手、車窗按鍵區域黏糊糊：這個一般是用久了之后，零部件老化脫膠導致的，去網上購買改良件安裝，一套下來幾百塊就搞定。

7. The area of the inner door handle and window buttons is sticky: This is usually caused by the aging and debonding of components after prolonged use. You can purchase improved parts online for installation, and it takes a few hundred yuan to get it done.

8、真空泵漏油：一般是內部密封圈或單向閥損壞，網上購買相關零部件更換就好，零件費200以內

8. Vacuum pump oil leakage: Generally, the internal sealing ring or one-way valve is damaged. Simply purchase relevant parts online to replace them, and the parts cost is less than 200 yuan