Why does the EPC light come on in the Volkswagen Tiguan?

2 Answers
StSkylar
07/24/25 10:27am
The reasons for the EPC light coming on in the Volkswagen Tiguan: 1. Dirty throttle; 2. Brake light not working; 3. Use of substandard fuel; 4. Abnormal cylinder pressure, poor working condition; 5. Sporadic fault, false alarm; 6. Valve fault, stuck or carbon deposit; 7. ECU fault. The body dimensions of the Volkswagen Tiguan are 4506 mm in length, 1809 mm in width, and 1685 mm in height, with a wheelbase of 2684 mm. The drive mode of the Volkswagen Tiguan is front-engine front-wheel drive, the front suspension type is MacPherson independent suspension, the rear suspension type is multi-link independent suspension, and the body structure is a unibody.
Was this review help?
3
1
Share
JaydenDella
08/11/25 5:33am
I've personally experienced the EPC light coming on in my Volkswagen Tiguan. While driving, a sudden yellow warning light flashed on, which really spooked me. The EPC light indicates an issue with the electronic throttle control, which could be caused by a dirty throttle body with excessive carbon buildup, a faulty throttle pedal sensor, or some malfunction in the engine control unit. When my light came on, the throttle response became sluggish and acceleration felt weak, so I immediately drove to the dealership for inspection. It turned out the throttle body had never been cleaned - cost me just over 200 yuan to fix. Don't ignore it, as prolonged neglect may lead to increased fuel consumption or even breakdown risks. My advice is to have technicians clean the throttle body during regular maintenance, which can prevent similar issues and give you peace of mind while driving.
Was this review help?
12
2
Share
Expand All
More Forum Discussions

What is the reason why the gear of Changan CS75 automatic transmission cannot be engaged?

The reason why the gear of Changan CS75 automatic transmission cannot be engaged may be due to a faulty switch under the brake or a problem with the transmission. You can try shaking the steering wheel left and right. If the problem persists, it is recommended to go to a 4S store for inspection and repair. The automatic transmission does not require the driver to manually shift gears. The vehicle will automatically select the appropriate gear based on the driving speed and traffic conditions. The Changan CS75 is a compact SUV under Changan Passenger Vehicle, with a length, width, and height of 4650mm, 1850mm, and 1705mm respectively, and a wheelbase of 2700mm. In terms of safety configurations, the vehicle is equipped with front and rear airbags, tire pressure monitoring, ABS and body stability control, front and rear parking radar, 360-degree panoramic imaging, and other configurations, providing more confidence and safety assurance while driving.
15
1
Share

Can an Air Filter Be Reused?

It can be reused, but replacement is recommended. Using compressed air to blow or washing it with water can remove thick accumulated dust, but it is difficult to clean the dust that has been absorbed into the paper. The function of an air filter: to filter out particulate impurities in the air, ensuring that a sufficient amount of clean air enters the cylinder, preventing airborne dust from being sucked into the engine, which can accelerate the wear of the piston group and cylinder. According to the car's maintenance manual, the air filter should generally be replaced every 10,000-20,000 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 is determined by the intake form and the engine's structure. It is usually located in the air cleaner on the engine's intake pipe. There are two types of air filters in cars: dry and wet. The dry type is made of paper or organic materials, while the wet type is made of metal mesh. Air filter: It is a type of filter, also known as an air filter cartridge, air cleaner, or air style. It is mainly used in engineering vehicles, cars, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms as an air filter. During operation, the engine sucks in a large amount of air. If the air is not filtered, the suspended dust in the air will be sucked into the cylinder, accelerating the wear of the piston group and cylinder. Larger particles entering between the piston and cylinder can cause severe cylinder scoring, which is particularly serious in dry and sandy working environments. The air cleaner is installed in front of the carburetor or intake pipe to filter out dust and sand particles in the air, ensuring that a sufficient amount of clean air enters the cylinder. Using an excessively dirty air filter: Driving with an excessively dirty air filter can cause insufficient air intake into the engine, leading to incomplete fuel combustion, resulting in unstable engine operation, reduced power, and increased fuel consumption. Therefore, it is essential to keep the air filter clean. The car's air cleaner is a device that removes particulate impurities from the air, consisting of one or several air filter components. Its main function is to filter out harmful impurities in the air before it enters the cylinder, reducing early wear of the cylinder, piston, piston rings, valves, and valve seats. Therefore, before air enters the cylinder, it must pass through the fine filtration of the air cleaner. An excessively 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 little dust and minor blockage, it can be cleaned by blowing compressed air from the inside out and reused. An excessively dirty air filter should be replaced promptly.
1
5
Share

What to do if the vehicle annual inspection is overdue?

If the vehicle annual inspection is overdue, the handling method is: 1. First, deal with traffic violations and overdue inspections. If the vehicle requires an out-of-town inspection, you need to obtain an out-of-town inspection authorization letter from the vehicle's registration location in advance; 2. Go to the corresponding vehicle management office to handle the annual inspection, and you need to bring the vehicle license, a copy of the compulsory traffic insurance policy, the owner's ID card, and valid proof of this year's vehicle and vessel tax payment or tax exemption. According to the Motor Vehicle Registration Regulations, the owner of the motor vehicle can apply for an inspection compliance mark at the registration location's vehicle management office within three months before the expiration of the motor vehicle inspection period. Before applying, the owner must settle all traffic safety violations and accidents related to the vehicle.
7
3
Share

How to Turn Off the Car's Wiper?

To turn off the car's wiper: There is a lever for the left and right turn signals below the steering wheel. The top of the lever can be rotated. The OFF mark is the position to turn off the car's wiper. Rotate to this position to turn it off. The INT mark is for automatic intermittent operation. Pull the lever down one notch, and the wiper will start working automatically in an intermittent mode. This gear needs to be manually reset and is suitable for light rain or snow. The wiper is a tool on the front windshield of motor vehicles to prevent rain and other debris from affecting visibility. Temperature changes, sand, dust, etc. can shorten the life of the wiper blades. Regularly cleaning dirt from the windshield and wiper blades, especially after rain, can reduce unnecessary wear and extend the life of the wiper blades.
15
1
Share

How to Handle Vehicle Annual Inspection in Another Location?

To handle vehicle annual inspection in another location, follow these steps: 1. The vehicle owner needs to obtain an inspection authorization notice from the original registration DMV, authorizing the entrusted city DMV to conduct the annual inspection. Bring the owner's ID card, vehicle license, insurance documents, original and copy of the vehicle and vessel tax, and an out-of-town annual inspection application to the registration DMV for processing; 2. The original registration DMV will issue a paper authorization letter to the applicant and send an online notification of the entrusted vehicle annual inspection to the authorized DMV; 3. After completing the entrusted vehicle annual inspection procedures, the owner should drive the vehicle to the inspection hall next to the DMV for on-site testing; 4. After passing the inspection, take the vehicle inspection report to the entrusted city DMV to print the inspection compliance label; 5. After the annual inspection is completed, the vehicle inspection information will be transmitted back to the original registration DMV via the network.
14
2
Share

How to solve the sudden loss of sound in Hyundai ix35 radio?

Hyundai ix35 radio suddenly has no sound can be solved by homemade car radio enhanced antenna, installing a signal amplifier, or replacing the radio head. The radio button of Hyundai ix35 is located at the upper left corner of the entertainment button area on the center console, press it to turn the radio on or off. Hyundai ix35 is an SUV model under Beijing Hyundai, with a length, width, and height of 4420mm, 1820mm, and 1690mm respectively, and a wheelbase of 2640mm. The car integrates functions such as audio control system, cruise control, panoramic sunroof, seat heating, dual-zone automatic air conditioning, and keyless one-button start.
14
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.