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What Causes Oil Leakage in BMW Engine Transmission?

1 Answers

DianaLynn

07/30/25 6:50am

Oil leakage in BMW engine transmission can be caused by poor sealing gaskets in various parts of the transmission, damage to the mating surfaces of the transmission case, failure of the sealing paper gasket, or loose transmission cover screws. Below is additional relevant information: Corresponding repair measures: If the mating surfaces of the transmission case are damaged, appropriately thicken the paper gasket at the damaged area. If oil leakage persists, welding repair should be performed. If the sealing paper gasket is damaged, replace it with an identical one. If the transmission cover screws are loose, tighten them promptly. Methods for handling oil leakage: Apply sealant to the leakage point, which involves cleaning the surface oil sludge before sealing with adhesive. This method does not require disassembling the transmission structure. If traces of fluid flow are observed on the transmission oil surface, the owner should promptly take the vehicle to a repair shop for inspection. Symptoms of transmission oil leakage: difficulty in starting the vehicle, severe impact sensation in low gears, and slow vehicle speed despite increased engine RPM when pressing the accelerator.

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What's the reason when the car makes a clicking sound but doesn't start?

The reasons why the car makes a clicking sound but doesn't start are as follows: 1. Insufficient battery power: The battery may be low on charge, or there could be minor power drainage somewhere in the car; 2. Battery aging: This can lead to insufficient power supply from the generator; 3. Lack of power: The starter's one-way clutch may be slipping, or the starter motor could be damaged or lacking power; 4. Poor contact: This mainly includes poor contact in the main power line connecting the starter and the battery, or internal poor contact in the starter's electromagnetic switch; 5. Circuit break: Check the wiring to see if there's a circuit fault.

What is the appropriate position to adjust the rearview mirror?

Adjust the rearview mirror to a position where approximately one-third of the sky and two-thirds of the ground are visible. Below is relevant information about the rearview mirror: 1. Function: When there is an emergency situation ahead requiring sudden braking, observing the central rearview mirror allows you to see if there is a vehicle following too closely behind. This enables you to adjust the braking intensity appropriately based on the distance to the vehicle in front, helping to avoid a rear-end collision. 2. Principle: The side rearview mirrors outside the car windows are convex mirrors, which utilize the principle of light divergence to expand the field of view, thereby better noticing the situation of vehicles behind. The image formed is the intersection point of the reverse extension lines of reflected light rays and does not actually exist, hence the image is virtual.

How Many Production Bases Does Volvo Have in China?

Volvo has 4 production bases in China, namely the Chengdu Vehicle Plant, Heilongjiang Daqing Vehicle Plant, Zhejiang Taizhou Vehicle Plant, and Hebei Zhangjiakou Engine Plant. The Heilongjiang Daqing Vehicle Plant serves as the engine of Volvo Cars' growth strategy in China, being the first vehicle plant in the country to adopt Volvo's SPA (Scalable Product Architecture) modular platform. The Hebei Zhangjiakou Plant, as Volvo Cars' second global engine plant and the brand's only engine production base outside Europe, boasts world-class engine production facilities and core technologies. The Volvo Chengdu Plant, officially put into operation in August 2013, was Volvo's first manufacturing facility in China and also its first complete plant outside Europe. Established in full compliance with Volvo's global quality standards across equipment, production, procurement, and quality management, the Chengdu Plant supplies products to global markets and holds a pivotal position in Volvo's strategic layout in China. The Zhejiang Taizhou Vehicle Plant, which commenced production in 2017, primarily manufactures models such as the Volvo XC40, Recharge, and Polestar 2.

What are the items included in a major vehicle service?

Automobile major service generally requires replacing engine oil and oil filter, spark plugs, air filter element, cabin air filter, transmission fluid, brake fluid, and coolant; cleaning throttle valve and engine carbon deposits; conducting a comprehensive inspection of various vehicle components' conditions, such as checking for oil leaks, assessing aging and wear of rubber components like tires and bushings. Additional information about vehicle maintenance is as follows: 1. Vehicle maintenance involves systems including: engine system, transmission system, air conditioning system, cooling system, fuel system, power steering system, brake system, etc. 2. Adjust maintenance intervals based on conditions: If the local environment is harsh with poor road conditions, the maintenance interval should be appropriately shortened, especially for air filter elements and cabin air filters.

How to Repair a Broken Car Window?

Automotive glass cracks are generally repaired using specialized repair tools and repair fluid. The repair fluid is filled into the crack through the repair tool, solidifying to eliminate the gap, thereby achieving the purpose of repair. Here are some considerations: 1. It is important to note that if the glass develops cracks, those that can be repaired should be addressed as soon as possible, and those that require replacement should be replaced promptly. This is because, during driving, the windshield must withstand wind resistance and constant vibrations. Over time, small cracks can gradually extend, lengthen, and expand in area. At this point, glass that could have been repaired may only be replaceable. 2. Long cracks in automotive glass are difficult to repair. After all, the effectiveness of repairing large cracks is not ideal, often leaving noticeable marks. Moreover, the strength of the repaired windshield cannot be guaranteed, posing a risk of re-cracking and potential safety hazards. Therefore, it is recommended to replace the glass.

How to deal with scratched plastic paint on the front of a car?

Touch-up pens are available at general automotive supply stores. The owner can report their car model and official color name to purchase a touch-up pen with the appropriate color code. If the scratches and dents left after the front bumper of the car is hit do not show signs of peeling or paint chipping, it is necessary to go to a 4S store for repair.

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