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Standard Ignition ALS399 ABS Wheel Speed Sensor - Front Left
Reliable ABS Wheel Speed Sensor for Mercedes-Benz Vehicles
The Standard Ignition ALS399 ABS Wheel Speed Sensor is designed to provide accurate wheel speed data for your Mercedes-Benz C36 AMG, C43 AMG, C220, C230, C280, CLK320, and SLK230 models. This sensor ensures proper ABS function and vehicle stability by delivering precise signals to your vehicle's braking system.
- Terminal Quantity: 2
- Connector Gender: Female
- Terminal Gender: Male
- Connector Quantity: 1
- Connector Shape: Oval
- Hardware Included: No
- Harness Length: 23 inches (580 mm)
- Mounting Location: Wheel
- Mounting Type: Bolt mount with 2 bolt holes
- Terminal Type: Pin
Product Details and Specifications
The ALS399 ABS Wheel Speed Sensor from Standard Ignition features a 23-inch harness length, providing ample reach for installation on the wheel mounting location. It uses a bolt mount design with two bolt holes for secure attachment. The sensor includes a single oval-shaped female connector with two terminals, while the terminals themselves are male pins, ensuring a reliable electrical connection. This sensor is engineered specifically for select Mercedes-Benz models, including the C36 AMG, C43 AMG, C220, C230, C280, CLK320, and SLK230, making it a precise replacement part for maintaining your vehicle's ABS system integrity.
Common Applications and Problem Resolution
- Restores accurate wheel speed signal to ABS control module
- Resolves ABS warning light issues related to faulty sensors
- Improves traction control and stability system performance
- Eliminates erratic braking behavior caused by sensor failure
- Prevents potential wheel lockup during emergency braking
Installation Notes and Tips
Installation requires removal of the wheel and access to the wheel hub assembly. The sensor mounts securely using two bolts; ensure the mounting surface is clean and free of debris before installation. Connect the oval female connector firmly to the vehicle harness, verifying the male pin terminals align correctly. No additional hardware is included, so retain original mounting bolts or acquire suitable replacements. After installation, clear any ABS fault codes and test drive to confirm proper sensor operation.
Quality Assurance and Warranty Information
Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The ALS399 ABS Wheel Speed Sensor undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship. Consult product documentation or your parts provider for exact warranty terms.
| Brand | Standard Ignition |
| Part Number | ALS399 |
| Connector Gender | Female |
| Connector Shape | Oval |
| Harness Length - inches | 23 |
| Harness Length - mm | 580 |
| Mounting Location | Wheel |
| Mounting Type | Bolt Mount |
| Number of Bolt Holes | 2 |
| Terminal Gender | Male |
| Terminal Type | Pin |
This part fits 19 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2000 | Mercedes-Benz | SLK230 | Front Left | |
| 1999 | Mercedes-Benz | C230 | Front Left | Compatible with vehicles lacking traction control. |
| 1999 | Mercedes-Benz | C280 | Front Left | Compatible with vehicles lacking traction control. |
| 1999 | Mercedes-Benz | C43 AMG | Front Left | Compatible with vehicles lacking traction control. |
| 1999 | Mercedes-Benz | CLK320 | Front Left | Compatible with vehicles lacking traction control. |
| 1999 | Mercedes-Benz | SLK230 | Front Left | |
| 1998 | Mercedes-Benz | C230 | Front Left | Compatible with vehicles lacking traction control. |
| 1998 | Mercedes-Benz | C280 | Front Left | Compatible with vehicles lacking traction control. |
| 1998 | Mercedes-Benz | C43 AMG | Front Left | Compatible with vehicles lacking traction control. |
| 1998 | Mercedes-Benz | CLK320 | Front Left | Compatible with vehicles lacking traction control. |
| 1998 | Mercedes-Benz | SLK230 | Front Left | |
| 1997 | Mercedes-Benz | C220 | Front Left | Compatible with vehicles lacking traction control. |
| 1997 | Mercedes-Benz | C230 | Front Left | Compatible with vehicles lacking traction control. |
| 1997 | Mercedes-Benz | C280 | Front Left | Compatible with vehicles lacking traction control. |
| 1997 | Mercedes-Benz | C36 AMG | Front Left | Compatible with vehicles lacking traction control. |
| 1996 | Mercedes-Benz | C220 | Front Left | Compatible with vehicles lacking traction control. |
| 1996 | Mercedes-Benz | C230 | Front Left | Compatible with vehicles lacking traction control. |
| 1996 | Mercedes-Benz | C280 | Front Left | Compatible with vehicles lacking traction control. |
| 1996 | Mercedes-Benz | C36 AMG | Front Left | Compatible with vehicles lacking traction control. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.