What Causes the Feeling of Scraping the Undercarriage When Braking?

1 Answers
McCassandra
07/29/25 2:56pm
The sensation of scraping the undercarriage when braking can be attributed to several reasons: worn brake pads, loose undercarriage components, aging rubber parts in the undercarriage, or issues with the lower control arm. Car owners can eliminate such abnormal noises by replacing brake pads, tightening undercarriage screws, or replacing rubber components. Additional information is as follows: 1. Braking: Refers to the action of stopping or reducing the speed of moving locomotives, vehicles, or other transportation tools or machinery. 2. Undercarriage: Refers to the combination of the transmission system, driving system, steering system, and braking system in a vehicle. It supports and installs the engine and its various components and assemblies, forming the overall shape of the vehicle, bearing the engine's power, and ensuring normal driving.
Was this review help?
18
4
Share
More Forum Discussions

What is the weight of the Skoda Superb?

The weight of the Skoda Superb 1.4T manual standard version is 1.38 tons; the 1.4T automatic models are all 1.42 tons; the 1.8T models are all 1.95 tons; and the 2.0T models are all 1.53 tons. The vehicle weight, also known as the curb weight, refers to the weight of the car under normal driving conditions, including the weight of the car itself, attached accessories, a driver weighing 68 kg, and luggage weighing 7 kg. The Skoda Superb is a B-class sedan launched by SAIC Volkswagen Skoda. In terms of body dimensions, it measures 4869 mm in length, 1865 mm in width, and 1489 mm in height, with a wheelbase of 2841 mm.
13
4
Share

What are the causes of transmission failure in Focus?

Transmission failure in Focus is caused by internal contamination and high temperatures. The specific reasons are as follows: Internal contamination of the transmission: In many cases, when an automatic transmission fails, it is not due to damage to the internal valve body but rather the presence of stubborn dirt and impurities inside. Especially when dirt and impurities accumulate inside the valve body, forming blockages, it becomes impossible to effectively regulate oil pressure, leading to issues such as jerking, impact, and slippage. High temperatures damaging the transmission: High temperatures can degrade the quality and frictional properties of automatic transmission fluid, increasing friction and wear, which results in transmission noise. Additionally, sludge can form inside the transmission, causing jerking and impact. If the temperature exceeds 120°C, rubber sealing materials will begin to harden, eventually leading to leaks and reduced hydraulic pressure. If the temperature rises even higher, the transmission may start to slip, and this slippage can, in turn, cause the temperature to rise further.
5
3
Share

Where is the brake light switch located on the Skoda Octavia?

Skoda Octavia's brake light switch is located beneath the brake pedal. Brake lights are typically installed at the rear of the vehicle, featuring red-colored lamps to enhance light penetration. This ensures that following vehicles can easily detect braking actions even under low visibility conditions, thereby helping to prevent rear-end collisions. The Skoda Octavia measures 4675mm in length, 1814mm in width, and 1460mm in height, with a wheelbase of 2686mm. It employs front-wheel drive, with a front suspension type of MacPherson independent suspension and a rear suspension type of four-link independent suspension. The Skoda Octavia is equipped with a 1.4L turbocharged engine.
7
3
Share

How to Connect a Phone to Bluetooth in a Magotan Car?

The method to connect a phone to Bluetooth in a Magotan car is: 1. Turn on the car's Bluetooth, enable the phone's Bluetooth function, and set the phone's Bluetooth to 'visible to all' or 'discoverable'; 2. Search for Bluetooth devices on the phone, select the Magotan once found, and proceed to pair and connect. If prompted for a password, enter the pairing code 0000. Once paired, the connection will be successful. The Magotan is a B-segment car under FAW-Volkswagen, with dimensions of 4866mm in length, 1832mm in width, and 1464mm in height, and a wheelbase of 2812mm. The car's multifunctional trip computer provides timely driving information through an electronic display, helping the driver stay informed about the vehicle's status.
3
0
Share

What is a B-segment car?

B-segment cars refer to mid-size sedans, which are classified based on factors such as body dimensions and engine displacement. Common B-segment models include the Accord, Magotan, Passat, Camry, Teana, BMW 3 Series, Mercedes-Benz C-Class, and Audi A4L. For example, the Magotan is a B-segment sedan produced and sold by FAW-Volkswagen since its establishment. In terms of electronic driving control and safety features, the Magotan is equipped with ESP, AUTOHOLD, EPB, large brake discs, and adaptive cruise control (ACC). Among these, ESP is the most advanced and comprehensive electronic stability system in Volkswagen's B-segment vehicles.
19
1
Share

What happens if one of the four spark plugs fails?

If one of the four spark plugs is damaged, it may cause slight engine vibration, but the impact is not significant. To ensure uniform ignition, it is recommended to replace all four spark plugs at the same time. Effects of a damaged spark plug: A damaged spark plug can directly lead to issues such as leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The most critical problem is difficulty in ignition, which affects the normal operation of the vehicle. Severe erosion of the spark plug, such as scarring at the top, damage, or melted electrodes, indicates that the spark plug is damaged and should be replaced. Methods to determine if a spark plug is damaged: Remove the spark plug and observe its appearance to assess its condition. A normal spark plug's insulator skirt and electrodes should appear gray-white, gray-yellow, or light brown. A properly functioning spark plug has a reddish-brown insulator skirt, with an electrode gap between 0.8-0.9mm and no signs of electrode burn. If the spark plug is contaminated with oil or deposits but is otherwise undamaged, it can continue to be used after cleaning off the oil and deposits. If the spark plug is severely damaged, showing signs such as scarring, black streaks, cracks, or melted electrodes, the cause of the damage should be identified. After troubleshooting, replace the spark plug with a new one. Additionally, if the spark plug appears black as if smoked, it indicates that the wrong heat range was selected or that the air-fuel mixture is too rich, or that oil is leaking into the combustion chamber.
20
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.