Moonlander
Posts: 21
Joined: Sat Dec 19, 2020 12:42 pm
Location: London, UK

Front Parking Sensors

Wed Mar 10, 2021 3:41 am

Hi all,
Can someone please tell me the correct name of the Obstacle Avoidance Sensor?

I've had my new to me 2016 car a couple of months and noticed this warning (pic below) keeps beeping in stationary traffic even though the car in front is approx 1-2 meters away. It happens on approx half the occasions the car's driven

Does it sound like a faulty sensor? Or dirt on the sensor? Is the sensor behind the front bumper? (I know roughly where the sensor's located but can't physically see it), can it be seen from the top (when bonnet is lifted) or from underneath the car?

Thanks
Naz
Avoidance warning lo.jpg
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Last edited by Moonlander on Wed Mar 10, 2021 7:09 am, edited 2 times in total.
2016 5HS

Moonlander
Posts: 21
Joined: Sat Dec 19, 2020 12:42 pm
Location: London, UK

Re: Obstacle avoidance sensor?

Wed Mar 10, 2021 5:03 am

I've done a bit of research and I think the sensors are triggered by any obstacles in the vicinity of the parking sensors - Is this correct?

In which case maybe all 4 front parking sensors might be faulty. Is this a known problem and does anyone else have similar symptoms?

The pic above only shows the front right sensor is being triggered by something, but on others occasion all front sensors are being triggered by a phantom obstacle.

Quick vid:
https://youtu.be/Imnwt3tDUds
2016 5HS

Nibbo
Posts: 93
Joined: Fri May 31, 2019 4:55 am

Re: Front Parking Sensors

Wed Mar 10, 2021 7:24 am

Cant help with a solution but the sensors should be clearly visible.
I am guessing yours is the newer model (chrome either side of the grill)? They are directly below the headlamp washers.

Maybe posting a picture of the front of your car would help others understand which vehicle and spec we are looking at.

Moonlander
Posts: 21
Joined: Sat Dec 19, 2020 12:42 pm
Location: London, UK

Re: Front Parking Sensors

Wed Mar 10, 2021 9:57 am

Hi Nibbo,
Apologies but I managed to mix up Parking Sensors (Sonar) with the Forward Collision Mitigation System (FCM). The FCM is the sensor behind the front bumper. But I think the issue with my car is due to the parking sensors (?) which are clearly visible - Thanks anyway, and for Ref mine is the 5HS 2016 model (with chrome either side of the grille)

I've been reading here and elsewhere that parking sensors seem to be an issue and people just live with it or turn off the Sonar button. I am wondering if changing the sensors will fix the issue? (maybe previous owner jet washed to close to them etc)

Or can dirt somehow confuse the sensors?
2016 5HS

littlescrote
Posts: 235
Joined: Fri Jul 26, 2019 3:52 am

Re: Front Parking Sensors

Thu Mar 11, 2021 2:03 am

Mine are occasionally set off by loud exhausts, but nothing else - certainly not dirt.

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