ABS and ESP system

ABS and ESP are advanced driving safety systems that minimize the risk of skidding and loss of vehicle control. ABS (Anti-lock Braking System) prevents wheel lockup during braking, while ESP (Electronic Stability Program) stabilizes the vehicle in challenging driving conditions, such as corners or slippery surfaces. At Global Parts, you'll find a wide selection of used car parts, including ABS and ESP systems, ideal for BMW , Audi , Mercedes , Volkswagen , Mini , and more .

What is the difference between ABS and ESP?

Although both systems work together, their functions differ. ABS responds to sudden braking – each of the four brake discs has a dedicated speed sensor that measures wheel lockup. The ESP system, on the other hand, operates continuously, analyzing data from steering angle, lateral acceleration, and wheel speed sensors. This allows it to automatically correct the vehicle's trajectory, for example, by lightly braking one wheel. In vehicles like the BMW E90 or Volkswagen Passat B7, both systems work together within a single ABS/ESP controller, enabling precise responses in fractions of a second.

What functions do the ABS and ESP systems perform?

ABS and ESP play key roles in ensuring driving safety: Anti-lock Braking System (ABS) – The ABS system allows for full directional control during heavy braking, especially in difficult weather conditions. Electronic Stability Program (ESP) – ESP automatically corrects the vehicle's trajectory, reducing the risk of side slip or oversteering. Braking Power Optimisation – ABS works with other systems such as EBD (Electronic Brake-force Distribution) to optimise braking performance. Ensuring vehicle stability – ESP responds to differences in wheel speed, making corrections that help the driver maintain control of the vehicle.

Principle of operation and compatibility of ABS sensors

An ABS sensor is most often of the inductive or magnetoresistive type. In models such as the BMW E46, the ABS sensor generates a voltage signal in the 0.5–1.5 V range, which is read by the control module. Modern cars use active sensors, which require a 5–12 V power supply and allow for a more precise wheel speed reading. ABS sensor compatibility is crucial – for example, a BMW E46 ABS sensor will not fit a BMW E90, despite their similar design. Global Parts provides product descriptions with information on the OEM number, hub diameter, and connector type, making it easier to select the correct part.

Why is it worth taking care of the ABS and ESP systems ?

Damage or malfunction of the ABS and ESP systems can lead to safety and driving stability issues. Typical symptoms include: ABS/ESP light on dashboard on – May indicate a sensor, controller or pump failure. Extended braking distance – Faulty ABS can reduce braking effectiveness on slippery surfaces. Loss of driving stability – ESP failure can increase the risk of skidding in difficult conditions. Brake Pedal Problems – Hesitation or vibration when braking may indicate a problem with the ABS system. At Global Parts, we offer original used ABS and ESP components that have undergone extensive quality testing, ensuring their durability and reliability.

Table – the most common symptoms and possible causes of problems with the ABS/ESP system

Symptom	Possible cause	Sample item to check
The ABS light is on constantly	No signal from one sensor	ABS sensor BMW E46 / Passat B7
ESP turns on for no reason	Damaged steering angle sensor	ESP module / Bosch 5.7 controller
Brake pedal vibrations	Uneven signal from sensor	Rear wheel active ABS sensor
Longer braking distance	ABS pump failure	ATE MK60 ABS pump
No communication with the module	Corrosion of electrical connector	ABS sensor harness or ESP controller

How to choose the right ABS and ESP components ?

When selecting ABS and ESP components, there are several key aspects to consider: Vehicle-specific fit – Each ABS and ESP system is specific to a given model and drive type. At Global Parts, you'll find ABS and ESP components perfectly matched to BMW , Audi , Mercedes , Volkswagen , Mini , and more . Technical condition – Used parts, such as sensors, controllers and pumps, should be free from mechanical and electrical damage. System Compatibility – Make sure the components you choose work with the rest of the ABS and ESP systems in your vehicle.

Examples of parts matching to popular models

• BMW E46 – ABS sensors are mounted on each wheel and work with the Bosch 5.3 module.
• BMW E90 – Bosch 8.0 ESP module with DTC (Dynamic Traction Control) function was used.
• Volkswagen Passat B7 – ATE MK60E ABS system integrated with ESP, compatible with active sensors. Component selection by VIN or OEM ensures full electrical and mechanical compatibility. Global Parts offers the ability to filter parts by make, year, engine version, and module manufacturer.

Why is it worth choosing used ABS and ESP components ?

Used car parts , such as ABS and ESP components, are a practical solution that allows you to save money while maintaining high quality. By choosing used ABS and ESP components, you benefit from: Lower costs – Used items are much cheaper than new ones, but offer just as high quality. Ecology – Recycling car parts supports environmental protection and reduces waste. A wide range – In our store you will find ABS and ESP components for the most popular car brands.

How to take care of the ABS and ESP systems ?

To ensure that the ABS and ESP systems function reliably for a long time, it is worth following a few rules: Regularly check the condition of the ABS/ESP sensors and cables to prevent operational problems. Change the brake fluid according to the manufacturer's recommendations to ensure proper operation of the ABS pump. Monitor any errors on your dashboard and quickly diagnose problems in the workshop. If you need a replacement, you'll find the right used car parts at Global Parts that will restore the full functionality of your braking and stabilization system.

FAQ - Frequently asked questions about ABS and ESP systems

Question	Answer
What is the ABS sensor for?	The ABS sensor is a measuring element that detects wheel rotational speed and transmits it to the control module. This allows the system to regulate brake pressure, preventing wheel lockup.
What does the abbreviation ESP mean in a car?	ESP (Electronic Stability Program) is an electronic stability control system that corrects the vehicle's direction of travel by automatically braking the wheels.
What is the difference between an active and a passive sensor?	An active sensor requires power and operates based on the Hall effect, while a passive sensor generates a signal automatically, using magnetic induction. Active sensors are used in vehicles such as the BMW E90 and Passat B7.
How to check if the ABS sensor is working properly?	The easiest way is to measure the signal voltage with an oscilloscope or use computer diagnostics. It's worth verifying whether the sensor generates a stable pulse when the wheel is turned.
Does the BMW E46 ABS sensor fit the BMW E90?	No – they differ in cable length, connector type, and signal characteristics. It's always worth selecting a part by its OEM number or VIN.
What symptoms indicate a damaged ESP module?	Typical symptoms include an illuminated ESP light, instability when cornering, and system error messages read by the diagnostic interface.
Can only one ABS sensor be replaced?	Yes, as long as the new sensor has the same parameters and is fully compatible with the vehicle's system. In the case of a Passat B7, for example, you can replace a single sensor without having to replace the entire assembly.

Summary: ABS and ESP systems at the Global Parts automotive store

ABS and ESP are advanced safety systems that ensure stability, braking performance, and protection in all road conditions. By maintaining their technical condition, you can significantly increase driving safety. The Global Parts automotive store invites you to browse our wide selection of original used car parts . Whether you're looking for car parts for BMW , Audi , Volkswagen , Mercedes, Mini , or others, you'll find them at competitive prices. We strive to ensure every customer finds the right parts for their car, and if you have any questions or concerns about selecting the right components, we're happy to help! Please contact us – we're here to help! For more information and interesting facts, visit our automotive blog .