E39 Rear PDC Fault

[tuscany]

My PDC goes wild every time i select reverse and then the PDC light flashes. I suspect one of the sensor's on the back bumper has failed.

My question is how can i tell which one and how do i replace it (if its one of the center painted ones ) ?

How much should i expect to pay for the parts and is there an alternative to genuine parts ? ie is a VW one the same and cheaper ?

Many Thanks in advance

[jamoor]

Have you got a carsoft/other diagnostic kit?
If not, put the PDC on and go around each sensor and listen, they should all click.

[tuscany]

Hi, thanks for this and no i dont have a diag kit.

How much are they ? are they easy to use ?

regards

[eliot]

yes my rears on my e39 are beeping like mad at the moment - i will go and have a listen to them.

[jamoor]

They are childs play to use, just plug into your computer and press a few buttons on the computer, look on ebay, carsoft is the most effective, but specific to BM.
I had the same problems, bought a pair of new sensors off eBay for £35

Edited by jamoor on Wednesday 11th April 21:44

[tuscany]

OK, had my good ears on and no clicking from any of the sensors, is the clicking from them or the PDC controller in the boot ?

[jamoor]

tuscany said:

OK, had my good ears on and no clicking from any of the sensors, is the clicking from them or the PDC controller in the boot ?

The actual sensors should click, if you can't hear anything, then the PDC unit may be broke? Or all of the sensors may be broken.
A diagnostic check will be your next step.