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acamp76144
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Joined: 08 Jan 2013
Posts: 70
Location: Belfast


PostPosted: Sat Sep 23, 2017 12:09 pm    Post subject: Parking sensors False alerts Reply with quote

Has anyone else had issues with their parking sensors giving false readings (Ie like you are imminently going to hit something). OPC has looked at it 3 times now. Replaced both the front ones and is now worse then ever..

Only issue I've ever had with the car
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tbrown
Paul Ricard


Joined: 05 May 2007
Posts: 3424
Location: Fra Mauro Highlands

2007 Porsche Cayman

PostPosted: Sun Sep 24, 2017 2:05 pm    Post subject: Reply with quote

My reversing sensors have a tendency to give 'wrong' information.
Given that the majority of the time my car is dirty, I frequently have
to wipe the sensors to remove grime. As the car is also parked outside
it also gets condensation/rain drops on them as well which need wiping off.
This tends to 'cure' the problem. I learned a lesson not to trust them
when I reversed a car into an armco barrier bolted to a wall.
The sensors detected the wall but not the steel attached to it.
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911TEL
Österreich


Joined: 29 Oct 2007
Posts: 974
Location: Inverness and Highlands

2011 Porsche 997 Turbo S

PostPosted: Sun Sep 24, 2017 2:20 pm    Post subject: Reply with quote

I have a MY 2015 Cayenne that does this regularly ... then doesn't do it for ages ..... actual functionality is fine and never in question just comes up with these random false alerts .... haven't had them looked at by OPC as 98% of the time it's fine ..!
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acamp76144
Trainee


Joined: 08 Jan 2013
Posts: 70
Location: Belfast


PostPosted: Sun Sep 24, 2017 9:51 pm    Post subject: Reply with quote

911TEL wrote:
I have a MY 2015 Cayenne that does this regularly ... then doesn't do it for ages ..... actual functionality is fine and never in question just comes up with these random false alerts .... haven't had them looked at by OPC as 98% of the time it's fine ..!


yea, the same with mine. Could be fine for weeks if not months, then goes crazy, then fine again.. weird
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Rob325114
Spa-Francorchamps


Joined: 12 Dec 2015
Posts: 278



PostPosted: Mon Sep 25, 2017 7:24 am    Post subject: Reply with quote

The parking sensor nearest the number plate on the passenger side kept going off on mine. I assumed faulty sensor since I have seen soo many posts on this...

Then I realised it only happened under braking. Inspected the front, turned out the number plate was slightly loose. When braking, it would poke out very slightly, and the sensor would detect it an inch from the bumper and start screaming. Solved by a little bit of double sided sticky tape for me.
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weejimmy
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Joined: 26 Mar 2014
Posts: 268
Location: Bucks


PostPosted: Mon Sep 25, 2017 11:23 am    Post subject: Reply with quote

Both my .1 and .2 have tended to give false positives from time to time, typically when moving in traffic. Had it just this morning with a rear one indicating someone was very close behind me in traffic. When I checked my mirror, they weren't even vaguely close. I just ignore it as it happens so rarely! They have never misbehaved at actual parking speeds.
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Zingari
Donnington
Donnington


Joined: 25 Oct 2009
Posts: 11833
Location: Cheshire

1993 Porsche 964 Anniversary

PostPosted: Mon Sep 25, 2017 11:35 am    Post subject: Reply with quote

acamp76144 wrote:
911TEL wrote:
I have a MY 2015 Cayenne that does this regularly ... then doesn't do it for ages ..... actual functionality is fine and never in question just comes up with these random false alerts .... haven't had them looked at by OPC as 98% of the time it's fine ..!


yea, the same with mine. Could be fine for weeks if not months, then goes crazy, then fine again.. weird


Had the same issues with the front sensors on my MY2012 Rolling Eyes
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fouress
Newbie


Joined: 09 Nov 2015
Posts: 12
Location: Ayrshire


PostPosted: Mon Sep 25, 2017 4:55 pm    Post subject: Reply with quote

Have had the same issue. What makes it more odd is that the warning can activate even after being stationary at a set of lights with no change in distances to other cars then after several seconds the sensors will go off. But it's not a constant problem, it comes and goes. And my car is pretty much always clean Smile

2016 991.2
 
  
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markz86
Monza


Joined: 19 Nov 2013
Posts: 168
Location: Bristol


PostPosted: Mon Oct 02, 2017 5:58 pm    Post subject: Reply with quote

I had a couple of false readings on the front whilst moving in traffic this morning, seemed to both occur just after a "stop-start"

It's seems like a known trait of the system from reading these posts?
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sideways
Trainee


Joined: 17 Oct 2016
Posts: 55
Location: Surrey


PostPosted: Mon Oct 02, 2017 7:08 pm    Post subject: Reply with quote

Mine does like to freak out now and then. No pattern to it, very random.
She is a dirty girl though Grin
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acamp76144
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Joined: 08 Jan 2013
Posts: 70
Location: Belfast


PostPosted: Mon Oct 09, 2017 8:43 pm    Post subject: Update Reply with quote

OPC took it back in and put another new sensor in and no problems since.
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Rob325114
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Joined: 12 Dec 2015
Posts: 278



PostPosted: Mon Oct 09, 2017 10:58 pm    Post subject: Reply with quote

I've just had a brand new 718 Boxster S (few thousand miles on the clock) as a courtesy car a long weekend. It had the same irregular beeps. Roughly two ghost beeps over ~12hrs driving. Definitely a Porsche thing.
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acamp76144
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Joined: 08 Jan 2013
Posts: 70
Location: Belfast


PostPosted: Tue Oct 24, 2017 9:40 pm    Post subject: Re: Update Reply with quote

acamp76144 wrote:
OPC took it back in and put another new sensor in and no problems since.



Hold that thought... the side that wasn’t replaced has started going crazy now... going back in soon to get that side replaced too with a more thinly painted replacement sensor
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