PDC problem

[Don]

Hi Guys

Recently did a bumper upgrade on a 2006 e90. Bumper upgrade went well and kinda easy but having a problem with my PDC's. Whenever I place the car in reverse now it beeps constantly like im really close to something.

Any ideas? I have checked that they are clean but is there a way that I can check that they are all working ?

Will appreciate some help

Don

 

[Hellas]

One of the sensors may be stuffed. Unplug one at a time and see if you can pinpoint the problem one. If all of them seem problematic, then the controller unit may be stuffed. Probably a short somewhere.

 

[Legacy]

I think the new bumper is obstructing one or more of them.

Pics of old bumper vs pics of new bumper??

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Do you have iDrive?

 

[Don]

Thanks Hellas, I’ll give that a try - But would the system still work if I unplug one of the sensors( I mean will it beep)?

I don’t have Idrive and upgraded to a M Sport bumper so I cant see that anything would obstruct it.

Is there perhaps a specific way that it has to be fitted i.e. don’t know if I turned it upside down or something like that and it might be picking up the ground?

 

[Hellas]

It will work if you plug in one at a time. Do that and wave your hand in front to the sensor to see if it works.

 

[Legacy]

If you had iDrive this would be so much easier, but yeah do what Hellas is saying that should work:thumb:

 

[Don]

Thanks for the help, really apreaciated. Will try this and let you know

 

[BMW M]

Switch the cars ignition on without starting. Put the car in reverse, then go and listen @ each sensor for a clicking sound. Find the one that doesnt click, unplug it, clean the contacts and plug it back. Use a cable tie around each plug to secure the connection.

If this doesnt work then its probably the control unit as Hellas stated.

Hopes this helps. :thumbsup: