Mercedes A B Class W169 W245 Speed Sensor Front Left Right N/O/S A1695400417

The Mercedes W169 W245 Front Left Right ABS Sensor is an original component of the braking system, responsible for precisely measuring the rotational speed of the front wheels. Thanks to it, the ABS system can effectively prevent wheel lock-up, improving vehicle stability and car control during braking. This solution is designed for users expecting factory fit and predictable electronic performance.

Specifications and technical data

• SKU: A1695400417
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1695400417
• Substitutable numbers: A1695400417, A 169 540 04 17, A 1695400417, A1695401117, A 1695401117, A 169 540 11 17
• Location on the vehicle: Front, Left, Right
• Category: ABS Speed Sensors

Purpose and Function of the ABS Speed Sensor

The presented sensor belongs to the ABS Speed Sensor category and works with the anti-lock braking system in Mercedes vehicles. Its task is to generate a wheel rotational speed signal, which is then sent to the brake controller. Based on this data, the system can modulate pressure in the brake circuits, limiting skidding and improving vehicle maneuverability on wet, slippery, or uneven surfaces.

This component is particularly important in emergency braking situations, where repeatable, stable ABS operation is required. A functional sensor also helps in the proper operation of other systems that depend on wheel speed information, such as traction control or advanced stability control functions.

Vehicle Placement and Mounting Configuration

This sensor model is designed for use on the front axle, with the possibility of mounting on both the left and right sides. This solution simplifies part selection and reduces the risk of ordering errors. The vehicle placement has been chosen to ensure correct reading from the pulse ring and stable mounting in the steering knuckle or wheel hub, in accordance with the factory suspension design.

Proper seating of the sensor in its socket and maintaining the correct working distance from the measuring element are crucial for signal quality. Therefore, mounting in accordance with the vehicle manufacturer's procedures is recommended, ensuring the cleanliness of the socket and checking the condition of the electrical harness.

Product Characteristics and Vehicle Compatibility

The sensor is designed for Mercedes cars, which means it has factory-fit connectors, appropriate electrical characteristics, and compatibility with the control unit software used in these models. Using an original design helps reduce the risk of ABS system errors, dashboard fault messages, and post-installation adaptation issues.

The component has an assigned OEM part number and related interchangeable numbers, which facilitates selection based on service documentation or VIN. This allows for precise verification of compatibility with a specific body version, engine, and braking system, minimizing the risk of purchasing an incompatible part.

Why Choose a Used ABS Sensor?

The offered sensor is a used component, offering a reasonable compromise between repair cost and maintaining the original quality of the component. In many cases, original used vehicle electronics provide better durability and compatibility than cheap, unknown aftermarket replacements. This solution is particularly attractive for servicing older vehicles where both functionality and operating economy are important.

If you want to learn more about selecting and operating electronic components from the aftermarket, it's worth reading the guide: Used Car Electronics – How to Consciously Choose Modules and Sensors Second-Hand. You will find practical tips on verifying compatibility, interpreting markings, and installation principles.

Practical Installation and Operational Tips

When replacing the ABS sensor on the front axle, it is recommended to:

• check the condition of the mounting socket and thoroughly clean the mating surfaces,
• inspect the electrical harness for abrasions, contact corrosion, and insulation damage,
• properly route the cable, maintaining factory mounting points,
• verify ABS system operation after installation using computer diagnostics.

If you have any doubts about selecting parts, it is worth using the search engine in the category Eco-Tuning and Recycled Parts as a Way to Consciously Modernize Your Car to better understand the benefits of using proven recycled components in modern vehicles.