Wear Sensor Mercedes W211 C219 Brake Pad Wear Sensor Rear Right O/S A2115400505

Mercedes C219 Brake Pad Wear Sensor Right Rear is an original part from the brake pad wear sensor category, designed to monitor the condition of the pads on the rear right axle. Its precise design ensures reliable information about the degree of pad wear, making it easier to maintain the braking system in a safe and stable condition.

Specifications and technical data

• SKU: A2115400505
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2115400505
• Substitutable numbers: A2115400505, A 211 540 05 05
• Location on the vehicle: Rear, Right
• Category: Brake Pad Wear Sensors

Sensor Purpose and Function

The brake pad wear sensor is responsible for signaling when the brake pads reach their limit of wear. This component works with the vehicle's electrical system, transmitting a signal to the instrument cluster or diagnostic system, which allows for:

• early planning of brake pad replacement,
• reducing the risk of brake disc damage,
• maintaining consistent braking performance,
• increasing vehicle operational safety.

Its placement on the rear right side of the braking system ensures a perfect fit for the specific mounting position, simplifying servicing and minimizing the risk of incorrect selection.

Original Fitment for Mercedes C219

The Mercedes brake pad wear sensor has been designed for factory fitment to the C219 platform. This means maintaining the correct cable length, appropriate connector type, and mounting geometry, which translates to:

• secure seating in the caliper or guide bracket,
• stable cable routing without the risk of abrasion,
• correct interaction with the vehicle's electrical system.

This ensures an organized installation process, and the sensor operates under the conditions intended by the vehicle manufacturer after installation.

Component Characteristics and Installation

The presented sensor is a component dedicated to the rear right side, which is important both in terms of harness length and cable routing within the suspension and bodywork. Proper placement on the vehicle minimizes mechanical stress and the impact of external factors such as dirt or moisture.

During installation, it is important to pay attention to:

• correct routing of the cable in the factory clips,
• secure connection of the plug to the electrical system socket,
• checking for correct operation after starting the vehicle (no incorrect dashboard messages).

This type of sensor is a consumable part, usually replaced along with the brake pads to maintain the consistent operation of the entire system.

Why Choose a Used Mercedes Sensor

Choosing a used brake pad wear sensor allows for reduced service costs while maintaining the original specifications of the vehicle manufacturer. This solution is particularly beneficial when you prioritize:

• maintaining the factory characteristics of the braking system's operation,
• compatibility with the electrical system without modifications,
• a reasonable balance between price and functionality.

If you want to learn more about the principles of safely choosing parts from the secondary market, the guide: Used Parts – Your Guide to the Best Deals in an Automotive Store, will be helpful, offering practical tips on assessing condition and purchase value.

Safety, Diagnostics, and Operation

A functional brake pad wear sensor directly impacts the monitoring of the braking system's condition. A lack of wear signal from the pads can lead to driving with excessively worn pads, increasing braking distance and thermal load on the discs. Therefore, it is advisable to check the sensor's condition and proper operation with every brake pad replacement.

If a pad wear warning appears, and the warning persists after replacing the pads, the sensor is one of the first components to check. Its correct operation facilitates diagnostics and helps avoid unnecessary costs associated with replacing other components.

If you are interested in a broader context of purchasing parts from the secondary market, including higher-value components, it is worth familiarizing yourself with the material: How to Buy a Used Car Engine and Avoid Pitfalls – A Step-by-Step Guide, which discusses universal principles for assessing technical condition and offer reliability.

Other Mercedes Brake Pad Wear Sensors

If you are also looking for other Mercedes brake pad wear sensors for your car, check out the available options in our assortment: Mercedes brake pad wear sensors. This will allow you to easily select the appropriate part for other axles or different models of this brand, maintaining the consistency of the braking system throughout the vehicle.