PARKTRONIC / DISTORNIC PLUS / BLIND ASSIST 2013 vs 2008
Thread Starter
Newbie
Joined: Jun 2021
Posts: 2
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From: Odesa, Ukraine
W221 S500
PARKTRONIC / DISTORNIC PLUS / BLIND ASSIST 2013 vs 2008
Hello Everybody!
I own 2008 W221 S500 with Distronic Plus, Blind Assist, Parktronic and Parking Assist options. Both of my original bumpers had 4 big radars and now I have replaced them with 2013 versions. However according to my 600+ images research restyling 2013 bumpers only have 2 radars in each bumper but also regular small round parktronic sensors. There are 2 inner in front bumper for Distronic plus and 2 outer in rear bumper for Blind Assist. Currently my "extra" radars are held in their original place (like it was in old bumper) just buy handmade clamp however I want to make these system work as designed in 2013 models. I guess Blind assist don't need extra 2 radars in front and it somehow uses some other device to detect other cars in front and 2 extra radars in rear bumper are replaced by regular round sensors.
What hardware and software adjustments are required in my case?
I own 2008 W221 S500 with Distronic Plus, Blind Assist, Parktronic and Parking Assist options. Both of my original bumpers had 4 big radars and now I have replaced them with 2013 versions. However according to my 600+ images research restyling 2013 bumpers only have 2 radars in each bumper but also regular small round parktronic sensors. There are 2 inner in front bumper for Distronic plus and 2 outer in rear bumper for Blind Assist. Currently my "extra" radars are held in their original place (like it was in old bumper) just buy handmade clamp however I want to make these system work as designed in 2013 models. I guess Blind assist don't need extra 2 radars in front and it somehow uses some other device to detect other cars in front and 2 extra radars in rear bumper are replaced by regular round sensors.
What hardware and software adjustments are required in my case?
Last edited by Pluaro; Jun 6, 2021 at 06:56 PM.
Super Member
Joined: Feb 2009
Posts: 715
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From: Brooklyn, NY
2007 S550 4Matic 2013 S550 Base
It's likely the bumper you purchased isn't correct for your car which should be a bumper with no partronic circular cutouts. Your car is coded for 4 radar units back and front and if you alter that you will have problems with Distronic, Blind Spot, etc.
Thread Starter
Newbie
Joined: Jun 2021
Posts: 2
Likes: 0
From: Odesa, Ukraine
W221 S500
Super Member
Joined: Feb 2009
Posts: 715
Likes: 214
From: Brooklyn, NY
2007 S550 4Matic 2013 S550 Base
Super Member
Joined: May 2019
Posts: 671
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From: Omaha, NE
2007 S600
I think the wiring harness would be the easy part, compared to getting the firmware cobbled together to make it work. I’m going to go out on a limb and guess that the two different types of sensors would require very different software.
Super Member
Joined: Feb 2009
Posts: 715
Likes: 214
From: Brooklyn, NY
2007 S550 4Matic 2013 S550 Base
The easy part would be to have gotten the correct bumper in the first place.
Super Member
Joined: May 2019
Posts: 671
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From: Omaha, NE
2007 S600
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MBWorld Fanatic!
Joined: Aug 2014
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Likes: 1,676
S500
are u sure the small round visible ultra sonic parking sensors can take the place of the two smaller radars at the front?
on the early cars the smaller radars are to help at low speed to pick up on what's going on around it in town
on the early cars the smaller radars are to help at low speed to pick up on what's going on around it in town
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