Original BMW Black Parking Aid (PDC) Ultrasonic Sensor for BMW E39 5 Series, X3, and X5 (2001–2006)

For BMW owners whose parking distance control has stopped working, Original BMW ultrasonic sensor 66-20-6-989-069 is the black PDC sensor for the E39 5 Series, E83 X3, and E53 X5 from 2001 through 2006. It sits in the rear bumper and is one of several sensors that feed the parking distance control system, often called Parking Aid, Parking Assist, or PDC. Ultrasonic sensors send out sound pulses and time the echo off nearby objects, which the system turns into warning tones as you back up. BMW shows production of this number from October 2005 onward in a black finish. It is priced each and sold individually.

Original BMW Parts carry a 24-month parts warranty.

This sensor replaced the earlier 66 20 6 938 739, and BMW rates the change as exchangeable retrospectively, so it can be used in place of the older number on earlier cars. A bad sensor usually shows up in one of two ways. Either the system stops responding when the car approaches an obstacle, or it beeps continuously with nothing nearby, which can come from a dirty or damaged sensor or a wiring fault. Because the sensors are sold one at a time, you replace only the unit that has failed.

Technical Details

• Manufacturer: BMW (Original BMW part)
• Part number: 66-20-6-989-069
• BMW part name: ultrasonic sensor
• Color: black
• Location: rear bumper, PDC system
• Production start: October 2005
• Replaces: 66 20 6 938 739 (exchangeable retrospectively)
• Sold individually, priced each
• Warranty: 24-month parts warranty on Original BMW Parts

Common Questions

Can I replace just one parking sensor?
Yes. This sensor is priced and sold individually, so you can replace only the one that has failed.

Will this replace the older 66 20 6 938 739 sensor?
Yes. BMW rates this number as exchangeable retrospectively with the earlier part.

PMB Performance can help sort out PDC faults on E39, E53, and E83 BMWs.

Fitment & Compatibility

Use the table below to verify the year and submodel for your build. PMB Performance can confirm this against your VIN, backed by more than 20 years of parts and fitment work.