Car Parking Sensors Not Working? TRY THIS! 

Cheers George, i've been round the houses fixing a problem on my E70. Some sensors had a continuous tone but no error codes. This might help someone else. Worth checking 3 things: 1) Error codes then listen to the sensor, it should click but either way better just to replace. 2) The little rubber seal is called a de-coupling ring and if it's broken or missing will cause issues 3) Water ingress likely caused by pressure washers as BMW recommends they're used no closer than 10cm on the sensors. As you say a dab of WD40 should help. Hope that helps someone else.

I have a Dodge Ram truck where the front sensors stop working completely and I am trying to troubleshoot the system to see if it is the wiring or the sensors…. Your a Big help I will see if My sensors are the issue and not the wiring…… Thank You!!!!

After a heavy rainfall, rain seems to get inside the sensors and causes them to malfunction . A Couple of days of warm weather direct sunlight usually fixes the issue or you can do what I did.. I used a portable vacuum (18v Milwaukee) I put the hose on the blower side of the vacuum and used a crevice attachment (this increases the speed of the air) and aimed it at each sensor while varying the angle of directed air and it worked. No direct contact between the vacuum attachment and car panels/bumbers.

Ignition on in reverse then do a recording of each sensor on your phone and play it back, it makes a funny noise!!, so you’ll know witch one is gone.

if you put your finger over the sensors you can actually feel if the sensor is working, or you can bend down and you should be able to hear it working

Nice video mate. Have to check mine as front ones are not working

So helpful thank you

Muy explicativo excelente

genial, gracias.

Good video 🙌🏼

Parking sensors can collect dust and dirt and moisture over time, but I would highly recommend to NEVER spray a substance like WD40 on it. WD40 contains oils and other substances that will cause more dirt, dust and rubbish to collect on your parking sensor. It may fix it, for a very short time, but it will collect crud and fail. If you must spary them to clean them, Isopropyl alcohol is the only thing you should use. Other than that, compressed air, just blowing out the sensor is the best way so you don't get residue from WD40 or similar on them.

Hi thanks for the video The screen on my car sensor says : “not enough power”. What does that mean Thanks in advance

Hi George, thank you for this video ! I have change 2 parking sensor with exactly same reference as the other two but now, my car is not making any noise when I put the gear in reverse ... Is it necessary to reset error codes with an OBD ? (I have a BMW 320D E46)

Damn so nice having that black pice i have a e90 somehow the 40 to 90s they made the pastic thinner😂

Another good one George.

Hi mate, thx! If one is at fault....do the other 3 refuse their function somehow? Is this a “in series” problem or the computer disabling the signal, cause it misses 1 input out of 4?

What software did you use for diagnostics?

What scan tool do you use? Do the cheap £15 ones show pdc codes?

Just put your ear to them if there working your hear a clicking sound

Hello, do you know where is the module PDC? I thougbt it was under de cover behind the back seats, but not...

Did you leave a link ? Great video George

It looks on mine that the cover one one sensor has come off

Hi man,can u help When i put into R,sensor work for 3 4sec,and then start bip like forklift,or truck when going in R Superb 3u 2004 Tnx

Thanks! Mine does exactly the same. Will do a scan as well.

Can someone please help me. My sensors are working intermittently. One moment they will act normal then the next time they will been continuously then another time they will do the close rapid beeping. Now all of this will happen when I’m not near any thing

I thought the beep was indicating that they were turning on

would a electrical spray cleaner also do

Hi mate I've got the 325i exact same issue but when I scan it comes up with no error codes. Is there a specific part within the diagnostics that I have to scan. Many thanks.

Did you try the WD40 trick first?

Even with them they still scrap your bumbers at the super market

Hi, if one is not working can I just disconect it and will it work with 3 sensors?

👏👍

why use 1 word when you can use 20??

Spray with WD40 Contact cleaner yes, original WD40 no.

20k around the corner boss

talking too long