Delphi SS20309 ABS Wheel Speed Sensor

Delphi ABS Wheel Speed Sensor SS20309

Restore accurate wheel speed signal input with the Delphi SS20309 ABS wheel speed sensor. Built from Delphi’s OE heritage and backed by more than 100 years of original equipment experience, this replacement sensor is made for precise braking system feedback on select Mercedes-Benz C-Class applications.

• ABS wheel speed sensor for brake system signal monitoring
• Wiring harness included; harness length: 27.0
• 1 female connector with rectangular shape
• 2 male terminals with pin-style terminal type
• Package contents: ABS wheel speed sensor and instruction sheet
• Positions listed for front left, front right, rear left, and rear right depending on vehicle application

Vehicle Fitment

• Fits 2006-2007 Mercedes-Benz C280, rear right.
• Fits 2006-2007 Mercedes-Benz C280, rear left.
• Fits 2006-2007 Mercedes-Benz C350, front right.
• Fits 2006-2007 Mercedes-Benz C350, front left.
• Fits 2003-2005 Mercedes-Benz C320, front right.
• Fits 2003-2005 Mercedes-Benz C320, front left.

This part cross-references Standard Ignition ALS382 for the same application.

Detailed Description

The Delphi SS20309 ABS wheel speed sensor is a direct replacement-style component for Mercedes-Benz C280, C320, and C350 models listed above. It monitors wheel rotation and sends the signal needed by the ABS control system to help maintain consistent braking performance and traction system operation. Delphi’s OE background is reflected in the sensor design, connector layout, and harness configuration.

Use this part number SS20309 when replacing a failed sensor on the front or rear axle, depending on the exact vehicle position shown in the fitment data. The included instruction sheet supports a straightforward replacement process, and the integrated wiring harness helps match the original routing and connection style.

Common Problems This Part Can Address

• ABS warning light illuminated on the dash
• Wheel speed signal loss at one corner of the vehicle
• Traction control or stability control fault messages
• Erratic ABS operation during braking
• Sensor-related diagnostic trouble codes for a specific wheel position

Installation Notes and Tips

Confirm the exact wheel position before ordering, since SS20309 is listed for multiple locations across the Mercedes-Benz C-Class fitments shown. Inspect the connector, harness routing, and mounting point before installation, and compare the old sensor to the new Delphi unit for terminal and connector match. Mounting hardware is not included.

Quality Assurance

Delphi builds aftermarket parts using OE experience and original equipment knowledge developed over a century of supplying major automakers. That background supports consistent fit, connector integrity, and sensor performance for the specified Mercedes-Benz applications.