Standard Ignition

Standard Ignition ALS1858 ABS Wheel Speed Sensor - Rear

Brand Standard Ignition ALS1858
Position Rear
Connector Gender Female
Connector Shape Rectangular
Harness Length - inches 40.5
Harness Length - mm 1028.7
Mounting Location Spindle
Number of Bolt Holes 1
Terminal Gender Male
Terminal Type Pin
Fits Mercedes-Benz · 33 vehicles

Bolt-mount design. Installs with a single bolt hole for a secure, straightforward fit.

Wiring harness included. Comes ready with an attached harness for easier connection.

Single-connector sensor. Uses one oval male connector with two pin terminals.

Cross-references Standard Ignition ALS1858, URO 2045400317 and 532317 for the same application. See all 5.

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Rear ABS Wheel Speed Sensor for Mercedes-Benz

Standard Ignition ALS1858 is a rear ABS wheel speed sensor built for direct replacement on select Mercedes-Benz applications. It uses a bolt-mount design with a male oval connector and an included wiring harness for a clean, OE-style connection at the spindle.

Key Features

  • Part number ALS1858
  • Rear ABS wheel speed sensor for spindle mounting
  • Bolt-mount attachment with 1 mounting hole
  • Male oval connector with 2 terminals
  • 40.5-inch harness length for routing flexibility
  • Black and red finish
  • Wiring harness included
  • Cross-reference: URO 2045400317

Product Details

Standard Ignition ALS1858 is an ABS wheel speed sensor for the rear position on select Mercedes-Benz C-Class and AMG models. It is compatible with 2008-2015 Mercedes-Benz C300 rear, 2008-2015 Mercedes-Benz C350 rear, 2008-2015 Mercedes-Benz C63 AMG rear, 2010-2015 Mercedes-Benz C250 rear, 2008-2009 Mercedes-Benz C230 rear, and 2008-2009 Mercedes-Benz C280 rear. The sensor mounts at the spindle with a single bolt hole and uses a 2-terminal male connector to match the vehicle-side connection.

This ABS wheel speed sensor ALS1858 is built for vehicles that rely on accurate wheel speed input for brake system monitoring and stability-related functions. The included harness and 40.5-inch lead length support routing to the factory connection point on the rear suspension.

Common Issues This Part May Address

  • ABS warning light illuminated
  • Wheel speed signal loss at the rear axle
  • Intermittent traction control or stability system faults
  • Fault codes related to rear wheel speed sensor performance
  • Brake system warning messages tied to sensor signal errors

Installation Notes and Tips

Verify rear position fitment before ordering, since ALS1858 is listed for rear applications only. Confirm the connector shape, terminal count, and spindle-mounted bolt pattern against the original sensor before installation. Inspect the harness routing path and mounting point for corrosion, debris, or damage that could affect signal quality.

Quality Assurance

Standard Ignition supplies replacement electrical and sensor components for service applications, and ALS1858 is specified with the connector, terminal, and mounting details needed for a direct-fit replacement on the listed Mercedes-Benz models. This part cross-references URO 2045400317 for the same application.

This part fits 33 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2015Mercedes-BenzC250Rear
2015Mercedes-BenzC350Rear
2015Mercedes-BenzC63 AMGRear
2014Mercedes-BenzC250Rear
2014Mercedes-BenzC300Rear
2014Mercedes-BenzC350Rear
2014Mercedes-BenzC63 AMGRear
2013Mercedes-BenzC250Rear
2013Mercedes-BenzC300Rear
2013Mercedes-BenzC350Rear
2013Mercedes-BenzC63 AMGRear
2012Mercedes-BenzC250Rear
2012Mercedes-BenzC300Rear
2012Mercedes-BenzC350Rear
2012Mercedes-BenzC63 AMGBaseRear
2011Mercedes-BenzC250Rear
2011Mercedes-BenzC300Rear
2011Mercedes-BenzC350Rear
2011Mercedes-BenzC63 AMGRear
2010Mercedes-BenzC250Rear
2010Mercedes-BenzC300Rear
2010Mercedes-BenzC350Rear
2010Mercedes-BenzC63 AMGRear
2009Mercedes-BenzC230Rear
2009Mercedes-BenzC280Rear
2009Mercedes-BenzC300Rear
2009Mercedes-BenzC350Rear
2009Mercedes-BenzC63 AMGRear
2008Mercedes-BenzC230Rear
2008Mercedes-BenzC280Rear
2008Mercedes-BenzC300Rear
2008Mercedes-BenzC350Rear
2008Mercedes-BenzC63 AMGRear
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — ALS1858URO — 2045400317532317ABS1951SU12483