What are these things
Thread Starter
Senior Member
Joined: Aug 2002
Posts: 267
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From: U.K.
SL55
What are these things
My mate has just bought an SL55 R230 and it has two aftermarket boxes under the rear bumper.
Has anyone got any idea what they are? Not reversing lights ot additional brake lights and the factory parking aids work fine so I doubt its that.
??
Has anyone got any idea what they are? Not reversing lights ot additional brake lights and the factory parking aids work fine so I doubt its that.
??
Thread Starter
Senior Member
Joined: Aug 2002
Posts: 267
Likes: 0
From: U.K.
SL55
MBWorld Fanatic!
Joined: Jun 2021
Posts: 3,115
Likes: 1,348
From: Fleriduh
W212 E63S Wagon - GSL580 - E63 - E350 - C300
Yes. Quite a few of the systems out there have sensors all over the car. Many brands - and legal reprocussions state to state....country to country.
This is an example of Escort with the wired mounted devices that live at the front and rear of the car.
https://www.escortradar.com/collections/laser-shifters?_ab=0&_fd=0&_sc=1&srsltid=AfmBOoogvXAGHhg 0ZNVVqLjb8or2H39xCXr6HHiwZpCAlAyE_CpMckO6
https://www.escortradar.com/collections/laser-shifters?_ab=0&_fd=0&_sc=1&srsltid=Afm BOoogvXAGHhg0ZNVVqLjb8or2H39xCXr6HHiwZpCAlAyE_CpMc kO6&utm_source=RAd&utm_medium=affiliate&utm_campai gn=Sovrn&utm_keyword=je6NUbpObpQ-HpE7Cybb8HqUi5welVyt0Q&ranMID=53732&ranEAID=je6NUb pObpQ&ranSiteID=je6NUbpObpQ-HpE7Cybb8HqUi5welVyt0Q&2454844=2454844&Sovrn=Sovrn &1=1
Last edited by OldManAndHisCar; May 15, 2026 at 10:57 AM.
Out Of Control!!
Joined: Apr 2019
Posts: 11,951
Likes: 6,795
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
bumper mystery box
How about we open one up to see the technology that's involved?
Some kind of parking proximity sensor. It needs harness power for active sensing.
Some kind of parking proximity sensor. It needs harness power for active sensing.
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Joined: Feb 2017
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From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
likely no need to open, just unscrew from the car and look at the label…. Or follow the wires to see where they go. If there is no head unit for the detector, it’s unlikely you can get it running for a price lower than new, though the prices of detectors have skyrocketed.
