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Old 12-04-2010   #16
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Re: faulty parking sensors

Quote Originally Posted by Radlet6 View Post
Attached are the relevant pages from e-learn

brill thankyou this is going to help too

thanks again guys
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Old 13-04-2010   #17
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Re: faulty parking sensors

Just one last point - if there is a choice of two or three-pin sensors, you need the three-pin ones. The two-pin ones look similar but obviously won't fit. I haven't ordered the sensors for my car yet but will do soon, when I get round to it...

HTH.
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Old 13-04-2010   #18
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Re: faulty parking sensors

i have same problem with my HGT - the sensors are nuts
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Old 14-04-2010   #19
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Re: faulty parking sensors

Quote Originally Posted by HGT777 View Post
i have same problem with my HGT - the sensors are nuts
Funny I thought they were small ultrasonic devices that measured distance.

Well a bag of Tesco's finest cashews should sort yours out no bother.
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Old 23-04-2010   #20
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Re: faulty parking sensors

I tried Brazils but they wouldn't fit, so ordered a couple of second-hand sensors from ebay. I can now confirm that BMW sensors (as per the link I posted earlier) do work, my warning is now out. Cheaper than Fiat too.

HTH.
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Old 02-05-2010   #21
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Re: faulty parking sensors

Further to my last post, I've dismantled one of the faulty sensors to see what caused the problem in the first place. The thing to note is that these are not user-repairable, they are sealed from manufacture. Water ingress is unlikely to be a problem as the sensors are completely filled with rubberised foam.

As you can see from the picture, the problem would seem to be one of poor quality soldered joints. Nothing you can do about it I suppose. Apologies for the picture quality, my camera doesn't have a manual focus.

HTH.
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Old 12-08-2011   #22
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Cheap fix

New (and welcome) update to the Croma parking sensor issue. I've had further parking sensor problems and am toying with the idea of replacing the control module. I removed it (it lives behind the LH boot trim panel - "simply" remove it..!) with the intention of looking for similar units fitted to other cars.

No matches, however when the car doesn't have a parking sensor module fitted, the warning goes away too. This opens up the possibility that aftermarket kits can be fitted in place of the factory fit jobs - and given that such kits are available on ebay for around 30, that's cheaper than Fiat prices. The only downside is having to remove the boot trim to get to the module, however it's not too far from the little 'pop-out' panel so if you're small-handed and brutal you might be able to unplug the module without removing the panel. If you want a look, the module lives forward of, and slightly below, the pop-out panel.

Hope this helps and saves people money!
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Old 12-08-2011   #23
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Re: Cheap fix

wont body computer still be looking for the control unit unless you do proxy aliment first?

if you go after market you can get a camera n screen kit for 50
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Old 12-08-2011   #24
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Re: faulty parking sensors

Don't know - all I can say is the annoying orange triangle of doom is off and there are no untoward messages on the nanny screen at startup. Any experts out there who can confirm whether the car will 'miss' its PDC module?

Out of interest, I might plug my laptop in and run an ECU scan to see if there are any error codes. I'll post the results later.
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Old 12-08-2011   #25
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Re: faulty parking sensors

Just back from plugging the laptop in, FiatECUScan shows no errors. I've been driving the car for a couple of days / 100 miles so I'd expect any problems to have shown up by now. Looks like the car just thinks it doesn't have parking sensors fitted
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Old 22-04-2013   #26
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Re: faulty parking sensors

I have a faulty left rear parking sensor which I will need to replace. I've read the various threads on here and there are plenty of the compatible BMW sensors for sale on EBAY. I had two questions which I couldn't find answers to elsewhere:

1) How do I get at the sensor without removing the bumper? Is it through the black plastic panel at the back of the boot or by going from underneath the car?
2) What is the best way to match the colour - my car is dark grey

My car is a 55 reg 1.9 auto.

Any help gratefully received. Thanks
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Old 22-04-2013   #27
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Re: faulty parking sensors

Had to replace one of my left ones, used a "BMW" one off E-Bay. I have a silver car and ordered a silver one . When it came it was darker than my car but I `m not that bothered as you dont really notice it unless you look for it.
Fitting it was a pain for my Independent who does all my repairs. The sensor is held in with a click in mechanism and as he was trying to get at it from behind the bumper he broke the carrier. He fitted the new sensor into the carrier with waterproof glue. It works fine.
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Old 22-04-2013   #28
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Re: faulty parking sensors

I have an intermittent sensor fault on mine. The strange thing is that it's often on start up, before I've touched any gears. The triangle appears and the message says 'parking assistance not available'. Sometimes I can drive for miles with the triangle illuminated, put it into reverse to park up and the warning disappears and the sensors start working!!
This leads me to the conclusion that it might be the module that's faulty.

Any tips on how to check what is at fault? If it is the sensor, how do you find out which one is faulty?
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Old 22-04-2013   #29
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Re: faulty parking sensors

Quote Originally Posted by halilson View Post
I have an intermittent sensor fault on mine. The strange thing is that it's often on start up, before I've touched any gears. The triangle appears and the message says 'parking assistance not available'. Sometimes I can drive for miles with the triangle illuminated, put it into reverse to park up and the warning disappears and the sensors start working!!
This leads me to the conclusion that it might be the module that's faulty.

Any tips on how to check what is at fault? If it is the sensor, how do you find out which one is faulty?
This was exactly what happened to mine, my Indi mechanic had a laptop and was able to get a read out that it was the inner left. Not sure if EUscan will give you the same amount of info as I have not used it.
I would be very shocked if it turned out to be the module, its well away from any harsh environment whereas the sensors / connectors are right in the firing line.
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Old 22-04-2013   #30
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Re: faulty parking sensors

Quote Originally Posted by halilson View Post
Any tips on how to check what is at fault? If it is the sensor, how do you find out which one is faulty?
I just plugged in multiecuscan and got the code C1002 Rear left internal sensor (see screenshot attached) but now I come to think about it a bit more I'm confused about the word "internal". It might just be imperfect translation though.
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