Why does the Audi have a jerking sensation when starting?

1 Answers
StJackson
07/29/25 7:30pm
Audi's jerking sensation when starting may be due to throttle issues or solenoid valve damage. Below are detailed explanations of the causes and solutions: Throttle issues: All Audi models use electronic throttles. If the throttle opening is too large, the vehicle is prone to jerking when starting, commonly referred to as a 'hesitation' sensation. Solution: Clean the throttle. After cleaning, the vehicle's computer needs to relearn the driver's driving habits. The throttle's primary function is to control air intake, which in turn affects the fuel injection volume. Solenoid valve damage: Solenoid valve damage is a major cause of jerking. If sludge in the transmission fluid circulates and blocks the oil passages in the valve body, it can lead to jerking issues. Over time, this can cause a series of transmission problems such as overheating, impact, and slipping. Solution: This issue is difficult to resolve on your own, so it is recommended to visit a professional repair shop for maintenance.
Was this review help?
19
3
Share
More Forum Discussions

How often should the spark plugs be replaced in a Sagitar 1.4T?

The replacement interval for spark plugs in a Sagitar 1.4T primarily depends on the mileage. It is recommended to replace the spark plugs once every 40,000 to 60,000 kilometers. Spark plugs are a crucial component of the gasoline engine's ignition system. They introduce high voltage electricity into the combustion chamber and generate a spark by jumping the electrode gap, thereby igniting the combustible air-fuel mixture in the cylinder. Steps for replacing spark plugs: Open the hood, lift the engine's plastic cover, and remove the high-voltage distributor wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for any external debris like leaves or dust and ensure they are thoroughly cleaned. Place the new spark plugs into the spark plug holes, hand-tighten them a few turns, and then use the socket to tighten them further. Reinstall the high-voltage distributor wires according to the firing order and secure the cover.
11
2
Share

What are the solutions for BMW overheating issues?

The solutions for BMW overheating include cleaning the radiator fins, unclogging the pipelines, and replacing sensors. Specific measures should be taken based on the actual situation. Below are the detailed causes of BMW overheating: When the engine temperature is too high, it is necessary to check whether there is an issue with the cooling system. First, inspect the radiator fins in front of the water tank to see if there is any visible dirt. Many cars with high mileage have their front radiator fins almost completely clogged, which affects heat dissipation and ultimately leads to overheating. Additionally, internal pipeline blockages in the cooling system can cause poor coolant circulation, resulting in overheating. If there is visible dirt on the radiator fins, they should be removed and cleaned. If the engine temperature still does not normalize after cleaning, the issue may be due to internal pipeline blockages, which require cleaning. Overheating can also be diagnosed by reading the data stream through a computer. Generally, the data stream can reveal whether the issue is caused by a faulty coolant temperature sensor. When the coolant temperature sensor malfunctions, it provides incorrect temperature readings, triggering abnormal warnings in the car. By reading the data stream, the specific faulty sensor can be identified and replaced accordingly.
3
3
Share

How early can a large vehicle undergo its annual inspection?

Large vehicles can undergo their annual inspection up to 3 months in advance. For example, if a vehicle's inspection validity expires in September of this year, the annual inspection period would be from July 1st to September 30th of the same year. There are several ways to check the annual inspection time. The most straightforward method is to refer to the vehicle's registration certificate and compulsory traffic insurance electronic policy, which contain the vehicle's registration date. The registration month indicates the month when the annual inspection is due. Additionally, you can directly check the annual inspection sticker, which displays the validity period of the inspection. Important notes regarding annual inspection: Vehicles that fail the inspection must be repaired within a specified time limit. If they still fail after the deadline, the vehicle management office will confiscate their license plates and prohibit further operation. Vehicles that do not undergo the inspection without valid reasons or fail the inspection are not allowed to operate on the road or be transferred to another jurisdiction. Vehicles that meet the scrapping criteria or exceed the prescribed service life will not be inspected, and their license plates will be revoked, their records deleted, and they will be scrapped.
5
1
Share

What to Bring for Subject 4 Test?

For the Subject 4 test, you only need to bring your ID card; no other items are required. The Subject 4 test consists of 50 questions, primarily in the form of case studies, images, and animations, with a full score of 100 and a passing mark of 90. Subject 4, also known as the Subject 4 theory test or driver theory test, is part of the motor vehicle driver's license assessment. After the implementation of the Ministry of Public Security's Order No. 123, the Subject 3 test was divided into two parts: the road test and an additional safety and civilization knowledge test, commonly referred to as 'Subject 4,' which evaluates 'driving ethics.' Since this test is conducted after Subject 3, it is commonly called the Subject 4 test. Officially, there is no such term as Subject 4. If you fail the Subject 4 test, you do not need to retake the previously passed subjects (Subject 1, Subject 2, Subject 3). You can schedule a retest on your own, and no retest fee is required. There are no scheduling restrictions, but the validity period of the driving skills test permit is three years. If the applicant does not complete the test within the validity period, the scores of the already passed subjects will be invalidated.
14
1
Share

How Many Years Can Tires Last?

If the car is parked in a garage every day, the tire lifespan can be extended, typically lasting about 6 years. After 6 years, even if there are few cracks, it's best to replace them. For most vehicles, a tire generally lasts 5-6 years, and replacing it after 80,000-100,000 kilometers is appropriate. This ensures no danger due to aging and avoids wasting money by replacing too early. Below is relevant information about tires: Functions of Tires: Tires serve as the medium for transmitting forces between the vehicle and the road surface, transferring driving force, braking force, steering force, etc., thereby enabling operations like driving, braking, and steering. Classification of Tires: Automobile tires can be divided into passenger car tires and truck tires based on their usage. They can also be categorized into pneumatic tires and solid tires according to their carcass structure. Composition: Tires with inner tubes consist of the outer tire, inner tube, and flap. Tubeless tires are similar in appearance and structure to those with inner tubes, but they lack an inner tube and flap. Air is directly pressurized into the outer tire, and the sealing is ensured by the outer tire and the rim.
16
5
Share

How many temporary license plates can be applied for a new car?

A temporary license plate is valid for 15 days, and a new car can apply for a temporary license plate up to 3 times. This means that before the official license plate is issued, the car can rely on temporary license plates to run on the road for a maximum of 45 days. The following is relevant information about temporary license plates: Concept of temporary license plates: A paper motor vehicle license plate that permits temporary road use of a motor vehicle, also known as a temporary driving license plate. It refers to the temporary vehicle driving certificate issued by the public security vehicle management department for newly purchased vehicles before they are officially registered. The validity period of a temporary license plate generally does not exceed thirty days. Classification of temporary license plates: There are 4 types: temporary license plates for administrative regions, temporary license plates for cross-administrative regions, temporary license plates for testing purposes, and temporary license plates for special-type motor vehicles. Driving a newly purchased car to apply for a temporary license plate, only to be stopped by traffic police halfway and deducted 12 points. In fact, applying for a temporary license plate does not require your car to be present; as long as the procedures are complete, the person can go alone.
10
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.