Is a Rusted Car Chassis Dangerous?

Are the Transmissions of BMW 3 Series and BMW 5 Series the Same?

BMW 3 Series and BMW 5 Series do not have the same transmission. The differences between the two include their positioning, interior, and power. Different Positioning: The BMW 3 Series is a sporty B-segment car, while the 5 Series is a luxury C-segment car. They are not in the same class, although with the continuous updates in new models, the difference in body size between the 3 Series and 5 Series has become smaller than before. Different Interior: BMW's interior design has always maintained a driver-centric philosophy, which is reflected in both the new 3 Series and the current 5 Series. Sitting in the driver's seat, you will experience an almost perfect ergonomic design, with all screens and buttons laid out logically and within easy reach. Although the designs differ, the overall craftsmanship and materials used in the 5 Series interior are more premium compared to the 3 Series. Different Power: The new 3 Series is equipped with a B48 engine paired with an 8AT transmission. The 325 model has a maximum power of 135 kW and a peak torque of 300 Nm, while the 330 model offers a maximum power of 190 kW and a peak torque of 400 Nm. On the other hand, the BMW 5 Series 525 model also features a B48 engine, with a maximum power of 135 kW and a peak torque of 290 Nm.

20

4

Share

What does the exclamation mark in Lavida Plus mean?

There are five possible scenarios when an exclamation mark appears on the car dashboard: general malfunction, automatic transmission failure, brake system failure, abnormal tire pressure, and lighting system failure. Below is a detailed analysis of these five situations: General malfunction: An exclamation mark inside a triangle indicates a fault in the car's general performance, components, or functions. Common issues include parking sensor failure, fuel cut-off system intervention or malfunction, external light failure, or engine oil pressure sensor malfunction. It is necessary to visit a 4S shop for inspection to identify the source of the fault. Automatic transmission failure: A yellow gear with an exclamation mark inside is the automatic transmission fault warning light, indicating a transmission issue or low transmission fluid level. The transmission fluid should be replaced promptly. Brake system failure: An exclamation mark inside a circle with parentheses represents a brake system warning, typically indicating a brake system malfunction or low brake fluid level. Immediate inspection of the brake system is required to avoid accidents. Abnormal tire pressure: An exclamation mark with a horizontal line below parentheses indicates the tire pressure monitoring warning light. This light turns on when the tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting system failure: A yellow bulb with an exclamation mark is the lighting fault indicator, signaling a malfunction in the car's lights. Solution: Visit a 4S shop as soon as possible for inspection and repair. Alternatively, you can inspect the lights yourself, focusing on commonly used bulbs such as turn signals, fog lights, and interior lights to identify the issue.

16

4

Share

What Does the Exclamation Mark Warning Light on the Dashboard Mean?

When an exclamation mark appears on the car dashboard, it indicates one of five possible issues: general fault, automatic transmission fault, brake system fault, abnormal tire pressure, or lighting fault. Below is a detailed analysis of these five scenarios: General Fault: A triangle with an exclamation mark inside indicates a malfunction in the vehicle's general performance, components, or functions. Common causes include parking sensor failure, fuel cutoff system intervention or malfunction, external light failure, or engine oil pressure sensor issues. It is recommended to visit a 4S shop for diagnosis and repair to identify the source of the fault. Automatic Transmission Fault: A yellow gear with an exclamation mark inside is the automatic transmission warning light, signaling a transmission fault or low transmission fluid level. The transmission fluid should be replaced promptly. Brake System Fault: An exclamation mark inside a circled parenthesis represents a brake system warning, typically indicating a brake system malfunction or low brake fluid level. Immediate inspection and repair of the brake system are necessary to prevent accidents. Abnormal Tire Pressure: An exclamation mark below a horizontal line inside a parenthesis is the tire pressure monitoring warning light, which illuminates when the tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting Fault: A yellow bulb with an exclamation mark is the lighting fault indicator, signaling a malfunction in one of the vehicle's lights. Solution: Visit a 4S shop for inspection as soon as possible, or conduct a self-check focusing on commonly used bulbs such as turn signals, fog lights, and interior lights to identify the issue.

2

5

Share

Should the CT5 use 92 or 95 octane gasoline?

The Cadillac CT5 should use 95 octane gasoline, as per official data. The CT5 is a midsize sedan under the Cadillac brand. In terms of body dimensions, the 2022 28T Premium, Platinum, Fashion, and Luxury (standard version) models measure 4924/1883/1445 mm in length, width, and height, respectively, with a wheelbase of 2947 mm. Power-wise, the Cadillac CT5 is equipped with a 2.0T variable-cylinder turbocharged engine, delivering a maximum power of 174 KW and a peak torque of 350 Nm, while also meeting the China VI emission standards. The transmission system is paired with a 10-speed automatic manual transmission. In addition to checking the appropriate gasoline grade in the vehicle's manual, you can also find it on the fuel tank cap, which will indicate the recommended grade. Generally, the gasoline grade can also be determined based on the engine's compression ratio. Cars with an engine compression ratio between 8.6-9.9 should use 92 octane gasoline, those between 10.0-11.5 should use 95 octane gasoline, and if the compression ratio is higher, 98 octane gasoline is recommended. However, with the use of new technologies, the compression ratio alone cannot determine the gasoline grade. High compression ratios can be adjusted to use lower-grade gasoline due to other influencing factors such as ignition timing, turbocharging technology, and Atkinson cycle technology. Using 95 octane gasoline significantly reduces engine vibration compared to 92 octane. 95 octane gasoline burns more completely, resulting in less carbon buildup in the engine and better vehicle performance due to more thorough combustion. Different octane ratings lead to different anti-knock performances. Gasoline is a mixture produced by adding a certain amount of anti-knock agents to the same base gasoline, resulting in gasoline with varying anti-knock properties. Different gasoline components, such as straight-run gasoline, catalytic cracking gasoline, and catalytic reforming gasoline obtained from petroleum refining, are refined and blended with high-octane components, primarily used as fuel for automotive spark-ignition internal combustion engines. If the Cadillac CT5 occasionally uses the wrong gasoline grade, simply switch back to the correct grade after use. However, prolonged use of the wrong gasoline grade can have the following effects: For vehicles designed for lower octane gasoline, using higher octane gasoline will not cause damage, but the increase in octane rating can alter the fuel's ignition point, leading to delayed combustion in the engine. This reduces the engine's power output and thermal efficiency, resulting in poorer performance. For vehicles designed for higher octane gasoline, using lower octane gasoline can cause engine knocking. The significantly lower octane rating reduces the gasoline's ignition point, causing premature ignition during the compression stroke. If combustion occurs before the spark plug ignites, resistance is created during the upward stroke. This resistance makes the engine run very unstably. If the knocking is mild, it only increases noise without significant engine damage. However, noticeable knocking indicates severe engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, and in severe cases, cylinder scoring.

12

3

Share

How to Reset the Engine Malfunction Light by Yourself?

Engine malfunction light cannot be reset by yourself. No matter what causes the engine malfunction light to illuminate, after resolving the issue, you must use a computer to access the ECU program to reset it. Typically, you need to visit a 4S dealership and use a fault diagnostic tool to troubleshoot before the light can be reset. Vehicle malfunction lights are often triggered by the fuel emission system. When the malfunction light is on, try starting and turning off the vehicle three times, then start the vehicle again and observe whether the malfunction light remains illuminated. If it is still on, promptly visit a service center to check the fault code to determine whether the issue lies with the engine or a sensor fault.

14

3

Share

Can You Still Drive with a Car Engine Malfunction?

Whether the car can still be driven depends on the severity of the malfunction and the current situation. The following scenarios may occur: 1. Poor exhaust emission quality, leading to environmental pollution. 2. Increased fuel consumption. 3. Rising combustion chamber temperature and accelerated wear, causing faster engine wear. 4. Increased engine noise, affecting driving and passenger comfort. 5. Engine stalling. Therefore, when a car engine malfunctions, it should be repaired as soon as possible. Regular inspections and maintenance are also essential to ensure the normal operation of the car engine.

5

3

Share

Is a Rusted Car Chassis Dangerous?

Are the Transmissions of BMW 3 Series and BMW 5 Series the Same?

What does the exclamation mark in Lavida Plus mean?

What Does the Exclamation Mark Warning Light on the Dashboard Mean?

Should the CT5 use 92 or 95 octane gasoline?

How to Reset the Engine Malfunction Light by Yourself?

Can You Still Drive with a Car Engine Malfunction?

What Are the Reasons for Lexus Push-Button Start Not Working?

Can an A3 license holder drive a B2 vehicle?

What does ABS mean in a car?

What V-type engine does the Cayenne have?