Karlyn 51515 ABS Wheel Speed Sensor - Rear

Karlyn Bremi ABS Wheel Speed Sensor 51515

Karlyn Bremi part number 51515 is a rear ABS wheel speed sensor for select BMW applications. It is built for vehicles that use a rear-mounted wheel speed signal and is listed for models from 2012 through 2020, including BMW 230i, 330i, 430i, 440i, and M240i applications.

Key Features

• ABS wheel speed sensor for the rear position
• Karlyn Bremi product line
• Direct fitment coverage for select BMW rear applications
• Excludes Adaptive Cruise Control on listed 2012-2019 applications
• Part number 51515 for catalog and service reference

Detailed Description

This Karlyn Bremi ABS wheel speed sensor, part number 51515, is used to monitor rear wheel speed for the anti-lock brake system and related stability functions. Compatible BMW coverage includes rear applications such as 2012-2018 BMW 320i, 2014-2016 BMW 428i, 2016-2018 BMW 340i, 2017-2019 BMW 430i, and 2020 BMW 230i rear. The Bremi line identifies the specific product family within Karlyn’s brake sensor offering for these BMW fitments.

This part cross-references OE-style replacement numbers used for the same application.

What It Helps Address

• ABS warning light from a failed rear wheel speed sensor
• Traction control or stability control fault codes
• Intermittent wheel speed signal loss at the rear axle
• Brake system communication issues tied to sensor output
• Drivability concerns caused by inaccurate wheel speed data

Installation Notes and Tips

Verify rear position fitment against the vehicle listing before installation. For 2012-2019 BMW applications, confirm the vehicle does not use Adaptive Cruise Control, since those listings are excluded. Inspect the sensor mounting point, wiring path, and connector condition before replacing the unit, and clear stored ABS fault codes after installation.

Quality Assurance

Karlyn Bremi 51515 is cataloged for specific BMW rear-wheel applications from 2012-2020, with fitment defined by model, year, and equipment notes to support accurate ordering.