How to lift the electronic speed limit of a car
With the continuous development of automotive electronic technology, electronic speed limit functions have become standard features of many vehicles. However, some car owners want to lift the electronic speed limit due to performance or personalization needs. This article will focus on this hot topic and combine the hot content of the entire network in the past 10 days to provide you with a detailed analysis of the principles, lifting methods and precautions of electronic speed limits.
1. The principle and function of electronic speed limiter
Electronic speed limit is a function that limits the engine output power or vehicle speed through the vehicle ECU (electronic control unit). It is mainly based on the following purposes:
| Type | Principle | Common car models |
|---|---|---|
| legal speed limit | The European Union and other regions have mandated a speed limit of 90km/h for commercial vehicles. | Trucks, buses |
| safe speed limit | Prevent drivers from speeding | family car |
| performance protection | Avoid engine overload operation | high performance sports car |
2. Common methods to lift electronic speed limits
According to recent discussions in automotive forums and technology communities, mainstream lifting methods can be divided into the following three categories:
| method | Operation difficulty | cost | risk level |
|---|---|---|---|
| Flash ECU program | High (requires professional equipment) | 2000-8000 yuan | ★★★ |
| Install speed limit cracking module | Medium (requires wiring) | 500-2000 yuan | ★★ |
| OBD interface debugging | Low (plug and play) | 300-1500 yuan | ★ |
3. Operation precautions and risk warnings
1.legal risks: Some countries/regions explicitly prohibit lifting speed limits. For example, Germany imposes a maximum penalty of 50,000 euros on unauthorized modifications.
2.Warranty Impact: 4S stores may refuse to provide warranty services (refer to the recent rights protection case of a German brand)
3.technology risk:Irregular ECU flashing may lead to:
- Engine knocking
- The gearbox logic is confusing
- Electronic system fault codes occur frequently
4. Comparison of popular lifting plans in 2023
| Scheme name | Applicable brands | success rate | User ratings |
|---|---|---|---|
| RaceChip Ultimate | BMW/Mercedes-Benz/Audi | 92% | 4.8/5 |
| ECUTek Pro | Japanese/American | 88% | 4.6/5 |
| OBDLinkMX+ | General model | 85% | 4.3/5 |
5. Expert advice
1. Give priority to official performance upgrade packages (such as BMW M Performance)
2. Be sure to keep the original ECU backup file
3. After the speed limit is lifted, it needs to be upgraded simultaneously:
- Braking system
- Tire grade
- Suspension support
According to the latest traffic data, the accident rate of vehicles that lift the speed limit without authorization is 37% higher than that of ordinary vehicles. It is recommended that car owners pay attention to driving safety and abide by local laws and regulations while pursuing performance.
check the details
check the details
en
