How High is the Engine from the Ground?

1 Answers
Evans
09/01/25 3:05am
The vehicle chassis should be no less than 140mm because urban traffic congestion is severe, and the engine cooling requires special design; otherwise, it may easily cause "boiling over." The minimum ground clearance value has certain limitations and is related to the vehicle's function and aerodynamics. For example, sports cars have a relatively small minimum ground clearance, while SUVs have a relatively large one. Arbitrarily increasing or decreasing the minimum ground clearance without considering the vehicle category will affect the car's performance. Below is relevant information: Ground Clearance: Ground clearance is a crucial parameter when selecting a car. Most European passenger cars have a ground clearance between 100 and 140mm, while most Japanese and Korean passenger cars range from 140 to 180mm. Generally, off-road vehicles have a ground clearance between 180 and 220mm. German Cars' Ground Clearance: After entering the Chinese market, German cars have made corresponding adjustments to their chassis height. For instance, Audi adjusted the original ground clearance from 115mm to 142mm to ensure better road passability in China. As for Japanese and Korean passenger cars, due to similar traffic conditions as in Asia, the design takes into account the complexity of urban traffic, such as frequent manhole covers and uneven road surfaces, resulting in a relatively higher ground clearance.
Was this review help?
20
1
Share
More Forum Discussions

Can I switch from manual to automatic transmission after passing Subject 1?

If you have registered for a manual transmission driver's license test (C1) and have already passed Subject 1, you cannot switch to an automatic transmission driver's license test (C2). Before taking the Subject 1 test, you can negotiate with the driving school to change the relevant procedures and pay the additional fees to switch your registration to an automatic transmission driver's license test (C2). The process for the Subject 1 test is as follows: First, follow the instructions of the staff to collect your driving training file in order at the waiting area; carry and present your ID card for inspection by the supervising officer. Please note that you must turn off your mobile phone when entering the test area, no loud noise is allowed, and the regulation textbooks are not allowed to be brought into the test area (or put in your bag). After the test, keep your ID card safe and submit the file to the "Document Submission Window" at the front of the test area. Candidates who pass the test will sign under the guidance of the staff at the exit of the test area and then leave. Candidates who fail the test can leave the test area immediately and wait for the driving school staff to notify them of the retake time.
20
0
Share

Where to Repair Car ECU?

Go to a local automotive electronic repair shop. After diagnostics, you can replace the faulty components. Below is an introduction about car ECUs: 1. Car ECU: The computer in a car, also known as the Engine Control Unit (ECU) or Electronic Control Unit, processes simple electronic signals and computations using basic logic gates and integrated circuit principles. It receives data from various sensors throughout the vehicle, processes the information, and sends output signals to control engine operations (such as fuel injection systems and ignition timing). Typically, the ECU is located under the dashboard on the driver's side or near the wiper linkage. Intelligent vehicle information systems, representing automotive computing platforms (central computing systems), involve technologies like computing, automotive electronics, communication protocols, wireless transmission, and GIS/GPS. Product development in this field is highly challenging, and global research is still in its early stages. 2. Basic Classification: Car computers can also refer to personal computers installed in vehicles. These are divided into OEM (Original Equipment Manufacturer) and aftermarket installations. OEM installations are factory-standard computers, usually with displays embedded in the control panel. Aftermarket installations involve users purchasing and installing computers post-purchase. Some domestic manufacturers now provide modification platforms. With such car computers, users can perform tasks like sending/receiving emails, watching movies, browsing the internet, and playing games, similar to using a home PC.
17
2
Share

Can Car Airbags Be Reused?

Airbags are disposable items and become ineffective once deployed. Airbags: Consist of an airbag cover and an airbag inflator designed to inflate and deploy the airbag. After deployment, the airbag can be repositioned, but the inflator cannot be reused and must be promptly replaced to ensure proper functionality in future incidents. Car airbags are supplementary safety devices made from special fabric nylon with a rubber lining, typically folded and designed to inflate into a large cushion during severe accidents. Generally, airbags fully inflate within about 40 milliseconds after a collision, providing cushioning for occupants. However, the structure of an airbag system is more complex, including components like the airbag ECU, sensors, and airbag module. Precautions for Airbag Use: Avoid accidental bumps and vibrations. Airbag sensors and other components are highly sensitive to impacts, so collisions and shocks should be minimized to prevent unnecessary deployment. Extra caution is needed when children are involved. Many airbags are designed for adults, considering factors like positioning and height within the vehicle. During inflation, airbags may pose risks to children in the front seats. It is recommended to place children in the center rear seat and secure them properly.
12
2
Share

Can You Drive with a Leaking Exhaust Valve?

You cannot drive with a leaking exhaust valve. Effects of a faulty exhaust valve on the car: You cannot drive. When idling, the valve closes, and basically no exhaust gas enters to participate in combustion. During engine load operation, a small amount of exhaust gas is reintroduced into the intake manifold and participates in combustion along with the air-fuel mixture. Some cars may experience shaking. The reason for the abnormal phenomenon is: When the cylinder connected to the exhaust manifold via the exhaust gas recirculation (EGR) system is operating, the exhaust gas entering the intake manifold through the EGR valve is the combustion exhaust from that cylinder. This exhaust dilutes the air-fuel mixture under idle conditions, causing all cylinders of the engine to operate abnormally. However, if the high-voltage wire of the cylinder connected to the exhaust manifold via the EGR system is disconnected, that cylinder will not ignite. In this case, the unburned new air-fuel mixture from that cylinder enters the intake manifold through the EGR valve, significantly improving the mixture quality in the other three cylinders. As a result, the engine's idle speed naturally increases instead of decreasing. Exhaust Valve: Also known as an oil separator or pressure control valve. Installed between the compressor outlet and the condenser inlet, it improves heat transfer efficiency in the condenser and evaporator through separation.
7
5
Share

What Causes the Voltage Mismatch Between Throttle Pedal Signal 1 and 2?

The reason for the voltage mismatch between throttle pedal signal 1 and 2 may be a fault in the electronic throttle sensor. The electronic throttle pedal contains two ICs, serving as the primary/secondary pedal sensors. The reference voltage values provided by the factory data can be used as benchmarks: when the pedal is not pressed, the reference voltage for the primary IC should be around 800mV, and approximately 4900mV when fully depressed. If the throttle pedal data deviates from these reference voltages—being either too high or too low—it indicates a potential fault in the electronic throttle pedal. How Electronic Throttle Works: The electronic throttle uses position sensors to transmit signals indicating the depth and speed of pedal depression. These signals are received and interpreted by the ECU, which then issues control commands. The throttle valve adjusts its opening angle accordingly, either quickly or gradually. Symptoms of Electronic Throttle Pedal Failure: If the electronic throttle pedal is damaged, the dashboard warning light will illuminate. The car's throttle pedal may become stiff, produce unusual noises when pressed, or fail to return to its original position after being depressed. Additionally, a faulty electronic throttle pedal can cause the throttle pedal sensor to malfunction, preventing the ECU from detecting the throttle position. This can lead to unstable idling, throttle sticking, unresponsiveness to acceleration, and ultimately render the vehicle inoperable.
19
3
Share

Should the clutch be fully depressed for one-button start in a manual transmission?

When starting a manual transmission car, the clutch must be fully depressed. Method for starting a manual transmission car on a slope: When starting a manual transmission car, depress the clutch fully with your left foot, shift into first gear, place your right foot lightly over the accelerator pedal, slowly release the clutch while simultaneously releasing the handbrake and gently pressing the accelerator. After pressing the accelerator, gradually and completely lift your left foot off the clutch to ensure a smooth start. When starting on a steep slope, lift the clutch with your left foot to the right point where the vehicle is in a "half-clutch" state. At this point, even if you release the handbrake and the foot brake, the vehicle will not roll back. Then, quickly press the accelerator, slowly release the clutch, and release the handbrake to start the vehicle. Manual Transmission: A manual transmission (MT), also known as a manual gearbox, requires the driver to manually shift gears by moving the gear lever to change the gear engagement inside the transmission, thereby altering the gear ratio to achieve speed changes. Working Principle: The pump wheel and turbine form a working pair, much like two fans placed opposite each other. The airflow from one fan drives the blades of the other, with the airflow acting as the medium for kinetic energy transfer. If liquid is used instead of air as the medium for kinetic energy transfer, the pump wheel will drive the turbine to rotate via the liquid. By adding a guide wheel between the pump wheel and turbine, a speed difference between the two can be achieved through reaction force, enabling variable speed and torque.
17
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.