Standard Ignition ABS Wheel Speed Sensor P/N:ALS50
Standard Motor Products
Standard Ignition ALS416 rear ABS wheel speed sensor for the 1999-2001 Audi A4 Quattro and other vehicles reports wheel speed to the ABS. It is engineered specifically for Audi vehicles.
A lit ABS or traction control warning light can mean a wheel speed sensor is not reading. Before you replace this sensor, rule out a damaged harness, a loose or corroded connector and a damaged tone ring, since any of them can also set the light.
It fits the 1999-2001 Audi A4 Quattro and the 2000-2001 Audi S4. Quantity per vehicle is two on the 1999-2000 Audi A4 Quattro and the 2000-2001 Audi S4, and one on the 2001 Audi A4 Quattro. This listing is one sensor for the rear right; where a car takes two, the other side of that axle is a separate part.
Fit and size
Build and materials
One ABS wheel speed sensor with its harness. Mounting hardware is not included, so plan on new fasteners, as the old ones may not be reusable.
Product information is for general reference and may contain errors. See our Disclaimer.
Does the Standard Ignition ALS416 fit the 1999-2001 Audi A4 Quattro?
Yes. Standard Ignition ALS416 is a rear ABS wheel speed sensor for the 1999-2001 Audi A4 Quattro, and it also fits the 2000-2001 Audi S4.
What comes with this Standard Ignition ABS wheel speed sensor?
You get one sensor with its harness, location grommets and wire clips. Mounting hardware is not included.
How long is the harness on the ALS416 sensor?
The Standard Ignition ALS416 harness is 39.5 in (1000 mm) long and ends in a rectangular female connector with two male pin terminals.
What does a bad rear ABS wheel speed sensor look like?
An ABS or traction control warning light can mean a wheel speed sensor problem. A shop can read the codes and test the sensor.
What is this rear ABS wheel speed sensor made of and tested for?
It is made of synthetic material built for harsh operating conditions and has a sealed connector. It is tested on vehicles for correct integration with electronic safety systems.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.