SL-Class (R231) 2013 on: Discussion on the SL550

SL/R231: Unknown "Dong"

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Old Jan 19, 2020 | 07:19 PM
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Unknown "Dong"

I have noted on several occasions that a "dong" will sound in my SL usually when traveling slowly in my residential neighborhood. At first I thought it might be a temperature warning as it has been in the low to mid 30s here the last several days. I also thought it might be related to the Parking assist but I wasn't in a parking lot. Any ideas? Thanks.
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Old Jan 20, 2020 | 11:48 AM
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mine makes dongs and dings when getting too close the car next to me in thegarage and on the street, could you be passing a car and your passive warning system alerts you to nearness of objects ??
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Old Jan 20, 2020 | 11:59 AM
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Might be. I'll be cognizant of nearby cars and objects next time.
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Old Jan 20, 2020 | 03:29 PM
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R231 SL
Are you passing by a place that you have set as a favourite or point-of-interest in your GPS at the time?
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Old Jan 20, 2020 | 03:31 PM
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Don't think so but I will check this next time I drive it. Thanks.
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Old Jan 20, 2020 | 03:32 PM
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That recently started happening to me when i got a text on my phone. you can check at the bottom of the telephone screen
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Old Jan 20, 2020 | 05:45 PM
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This may well be it. I'll check next time it happens. Thanks.
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Old Jan 20, 2020 | 06:22 PM
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Have your nav screen on when you drive by that point. If you see a bullseye or something similar then it is likely a PPOI Personal Point of Interest as D49 mentioned above,
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Old Jan 20, 2020 | 06:47 PM
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Will do. I suspect it's my house. LOL. I may well have set it as Home and thus a PPOI. I should bring my Owners Manual in and spend some time reading it when the weather is too cold to be enjoying the outdoors. Thanks.
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Old Jan 20, 2020 | 07:46 PM
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Originally Posted by pjw1967
Have your nav screen on when you drive by that point. If you see a bullseye or something similar then it is likely a PPOI Personal Point of Interest as D49 mentioned above,
That’s wonderful! They can give us this truly unneeded feature, but they couldn’t fix the audio system during the 8 year run of the R231.
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