Description
OEM part number 6921415. This is a genuine used BMW PDC control module (parking sensor ECU) for the E53 X5, E46 3 Series and E39 5 Series. Each unit is tested before listing and supplied in good used condition.
The PDC control module serves as the central processing unit for the parking distance warning system. It energises and interrogates each ultrasonic sensor fitted in the front and rear bumper, measuring the time of flight of reflected sound pulses to derive the distance between the vehicle and nearby obstacles. That distance data is translated into an escalating sequence of audible alert tones — increasing in frequency as the gap closes — and, where a visual display is fitted, the module feeds proximity information to the instrument cluster or iDrive screen. All communication with the body control module and further vehicle systems takes place over the CAN bus.
Common symptoms of a faulty PDC module include the parking sensor system failing to activate when reverse is selected, no audible tones during close-range manoeuvring, a continuous warning beep with no obstruction present, a PDC warning indicator or amber symbol displayed in the instrument cluster, or one or more sensors appearing dead while the remaining sensors operate normally.
Supplied in good used condition. It is essential to cross-reference the OEM part number against your specific vehicle build and any dealer option codes before ordering, as PDC modules vary by specification and are often VIN-coded. A professional technician should carry out the fitting. Coding using BMW ISTA diagnostic software is necessary after installation on most applications; the system will not operate correctly or may log fault codes if coding is omitted. 14-day returns are accepted on unmodified, uninstalled parts.
Returns accepted only for genuine faults — faulty on arrival, not as described, or wrong part supplied — requested within 14 days, with all 3 anti-tamper stickers intact. No returns for change of mind, incorrect installation, coding/programming, or buyer compatibility errors; checking compatibility (OEM number, firmware, vehicle) is the buyer’s responsibility. Full policy: https://giantparts.eu/refund-and-returns/
