What does EVP failure mean?

Is the Circuit the Cause of BMW 320 Rear Turn Signal Failure?

BMW 320 rear turn signal failure is mainly caused by three aspects: the bulb, the headlight control module, and related wiring. 1. If this problem occurs after washing the car, it is generally due to water immersion in the wiring harness or moisture in the headlight module. 2. If the light fails after driving on uneven roads with excessive vehicle vibration, we should suspect whether the related wiring harness connectors have become loose. 3. If the headlight fails and occasionally recovers on its own, this is usually an issue with the headlight control module or related wiring. BMW has previously issued recalls due to defective socket connectors in the left and right taillights, as these connectors can develop increased resistance after prolonged use. Solution: First, check if the bulb is damaged. Then, if only one side fails, swap the left and right headlight modules to see if the failure transfers. If it does, the issue is likely with the module itself. If not, carefully inspect the related wiring harness and connectors, and also clean the headlight module. If both sides fail, this is generally not a problem with the headlight module itself but should focus on the higher-level footwell module and the bus system.

4

5

Share

Is Power Steering Fluid the Same as Clutch Fluid?

Power steering fluid and clutch fluid are not the same. Introduction to Power Steering Fluid: Power steering fluid is hydraulic fluid. Hydraulic fluid is a type of oil, similar to engine oil, gasoline, or diesel. It is used in hydraulic equipment, such as hydraulic jacks or hydraulic cylinders in dump trucks that lift the cargo bed. The fluid is compressed inside to occupy a certain volume, thereby generating force. Liquids are used because solids cannot flow, and gases are easily compressed, making liquids the most suitable option. Hydraulic fluid is ideal for such applications because it provides lubrication, exhibits minimal volume change under high pressure, remains stable in performance, is relatively viscous, and is easy to seal. Essentially, it is a type of oil similar to engine oil but thicker. Introduction to Clutch Fluid: Clutch fluid is brake fluid. Brake fluid is a liquid used in automotive hydraulic braking systems to transmit pressure. There are three types: alcohol-based, mineral oil-based, and synthetic. Alcohol-based fluids include grades 1 and 3, while mineral oil-based fluids include grades 10 and 15. These two varieties have been phased out. Currently, synthetic brake fluid is predominantly used. Synthetic brake fluids are further categorized into glycol-ether-based, ester-based, and silicone-based types, with glycol-ether and ester-based being the most commonly used.

10

1

Share

Why does the oil light come on when the handbrake is pulled?

There are two reasons why the oil light comes on when the handbrake is pulled. The first is insufficient oil. When you press the brake and the engine speed drops, the pressure fails to meet the required level, causing the oil indicator light to illuminate. The second reason is the use of low-quality oil with insufficient viscosity, which can also trigger the oil light when braking. First, it's essential to determine whether it's a genuine or false alarm. 1. Genuine Alarm: The oil pressure is indeed below the design requirements. Causes: 1. Lack of oil; 2. Blockage in the lubrication circuit; 3. Clogged oil pan filter screen; 4. Unqualified oil filter; 5. Issues with the oil pump; 6. Turbocharger pressure leakage; 7. Problems with the selected oil viscosity. The viscosity is too low and does not meet the engine manufacturer's design requirements, or water has entered the oil. Solution: Use an oil pressure gauge to directly measure the actual oil pressure to identify the issue, then address it step by step based on the causes mentioned above. 2. False Alarm: The actual oil pressure is fine, but the alarm is triggered. Causes: 1. The oil pressure sensor itself is faulty; 2. There is an issue with the wiring connected to the sensor.

20

1

Share

Can ETC be installed without attaching it to the windshield?

ETC does not have to be attached to the windshield. Installing the ETC on the upper part of the windshield is to minimize obstruction of the driver's view and to ensure better recognition by highway toll station equipment. If you prefer not to install it on the windshield, place it in an open area where it can still be seen through the windshield. For small cars, the ETC is generally installed on the upper middle part of the front windshield, while for large vehicles like trucks and buses, it is installed on the lower middle part. The appropriate installation position should be no lower than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 to 90 degrees. If the vehicle has or will have an anti-explosion film, which may affect microwave signal transmission, the ETC should be installed on the microwave window strip. Here are some considerations for ETC installation: 1. Do not obstruct the view; it's best to install it behind the rearview mirror: Many car models have windshields with a steep incline, which can reduce the driver's field of vision. Installing the ETC without considering this may increase blind spots. Installing it behind the rearview mirror on the right side can help avoid blocking the view. 2. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement, as it has a solar panel on the back for self-charging. Therefore, avoid installing it on the blackened areas of the windshield or where the solar panel might be blocked. 3. Do not remove it arbitrarily once installed: The adhesive in the middle has an anti-removal lever connected to a switch. Once installed, the windshield presses the lever in. If removed arbitrarily, the lever will pop out, triggering the switch and locking the electronic tag, rendering it unusable until unlocked at an ETC service point. This is designed to prevent multiple vehicles from sharing one device. ETC usage tips: - The ETC transaction sensing range is 8 meters. To avoid paying for the vehicle in front due to its faulty ETC device, maintain a distance of at least 10 meters from the vehicle ahead. - The ETC lane recognizes speeds up to 20 km/h. Driving too fast may result in failure to read the vehicle's device information, leading to payment failure. - When using a debit card linked to ETC, insufficient balance may also cause payment failure.

3

5

Share

How Many Kilometers Should a Car Air Filter Be Replaced?

According to the car's maintenance manual, the air filter should generally be replaced every 10,000 to 20,000 kilometers or every other maintenance interval. However, it is recommended to clean the air filter every 5,000 kilometers to reduce the formation of throttle sludge. The location of the car's air filter varies depending on the intake form and engine structure, typically found in the air filter housing on the engine intake pipe. There are two types of air filters in cars: dry and wet. Dry filters are made of paper or organic materials, while wet filters are made of metal mesh. The function of the air filter is to remove particulate impurities from the air, ensuring that sufficient clean air enters the cylinders and preventing airborne dust from being sucked into the engine, which can accelerate wear on the piston group and cylinders. Air filter: It is a type of filter, also known as an air filter cartridge, air cleaner, or style. It is mainly used in engineering vehicles, cars, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms as an air filtration device. During operation, the engine draws in a large amount of air. If the air is not filtered, the suspended dust in the air can be sucked into the cylinders, accelerating wear on the piston group and cylinders. Larger particles entering between the piston and cylinder can cause severe cylinder scoring, especially in dry and sandy working environments. The air filter is installed in front of the carburetor or intake pipe to filter out dust and sand from the air, ensuring that sufficient, clean air enters the cylinders. Using a dirty air filter while driving can cause insufficient engine air intake, leading to incomplete fuel combustion, unstable engine operation, reduced power, and increased fuel consumption. Therefore, it is essential to keep the air filter clean. The car air filter is a device that removes particulate impurities from the air, consisting of one or several air-cleaning filter components. Its main function is to filter out harmful impurities from the air entering the cylinders to reduce early wear on the cylinders, pistons, piston rings, valves, and valve seats. Thus, before air enters the cylinders, it must pass through the fine filtration of the air filter. A dirty air filter can cause poor engine performance, excessive fuel consumption, and engine damage. When inspecting the air filter, if it is found to have minimal dust and light blockage, it can be cleaned using high-pressure air blown from the inside out and reused. Severely dirty air filters should be replaced promptly.

3

4

Share

How Long Does It Generally Take for a Vehicle to Be Scrapped?

Non-commercial vehicles and commercial vehicles have different scrapping periods, as detailed below: Scrapping regulations for non-commercial vehicles: For household 5-seat cars and 7-seat SUVs, as well as small and micro non-commercial vehicles, there is no usage period limit. When the normal mileage reaches 600,000 kilometers, the state will guide the scrapping process. In addition to the above vehicles, small and micro non-commercial passenger cars, large non-commercial cars, and wheeled special-purpose machinery vehicles also have no usage period limit. Common scrapping regulations for commercial vehicles: Small and micro taxi passenger cars have a scrapping period of 8 years, medium-sized taxi passenger cars have a scrapping period of 10 years, and large taxi passenger cars have a scrapping period of 12 years. Public transport passenger cars have a scrapping period of 13 years, other small and micro commercial passenger cars have a scrapping period of 10 years, and large and medium-sized commercial passenger cars have a scrapping period of 15 years. Micro commercial trucks have a scrapping period of 8 years, light and large commercial trucks have a scrapping period of 10 years. The vehicle scrapping process is as follows: The vehicle owner applying for scrapping and renewal must fill out the "Application Form for Vehicle Modification, Transfer, Alteration, Suspension, or Scrapping" and affix the owner's seal. The registration office will accept the application and issue a "Vehicle Scrapping Notice" for vehicles that have reached the scrapping period. For vehicles that have not reached the scrapping period, the vehicle inspection office will determine if they meet the scrapping standards and issue a "Vehicle Scrapping Notice" if applicable. The vehicle owner can choose a qualified recycling company to dismantle the vehicle with the "Notice". The recycling company will dismantle the vehicle and take photos after verifying the "Notice". The engine must be separated from the vehicle, the engine block must be broken, and the frame (chassis) must be cut. The vehicle owner must submit the "Modification Form", "XX Province Vehicle Renewal Technical Appraisal Form", "Scrapped Vehicle Recycling Certificate", and photos of the dismantled vehicle to the vehicle inspection office for verification and signature. The license plates and certificates will be reclaimed, and the scrapping registration will be processed according to regulations. Special Notes: According to Article 30 of the "Motor Vehicle Registration Regulations", if the vehicle is damaged and cannot be driven back to the place of registration, the vehicle owner may submit the scrapped vehicle to a local motor vehicle recycling company. Commercial vehicles converted to non-commercial use must be scrapped according to the original commercial vehicle scrapping period. According to Article 43 of the "Motor Vehicle Registration Regulations", after completing the transfer or cancellation of a motor vehicle registration, the original vehicle owner can apply to the vehicle management office to use the original license plate number when registering a newly purchased vehicle. The application must meet the following conditions: (1) The application must be submitted within six months after the transfer or cancellation; (2) The vehicle owner must have owned the original vehicle for more than three years.

5

1

Share

What does EVP failure mean?

Is the Circuit the Cause of BMW 320 Rear Turn Signal Failure?

Is Power Steering Fluid the Same as Clutch Fluid?

Why does the oil light come on when the handbrake is pulled?

Can ETC be installed without attaching it to the windshield?

How Many Kilometers Should a Car Air Filter Be Replaced?

How Long Does It Generally Take for a Vehicle to Be Scrapped?

How many liters of engine oil does a BMW 525 require?

What Material is the Backing Paper of Color Change Film?

What could be the reason for the engine being noisier than before?

What Causes Engine Power Loss When Accelerating at High Temperatures?