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Mercedes Benz S 550 DISTRONIC, LANE ASSIST, blind spot monitor. Issue

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Old Jul 31, 2024 | 02:51 AM
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Mercedes benz s550
Mercedes Benz S 550 DISTRONIC, LANE ASSIST, blind spot monitor. Issue

Hi Benz owners, I know this is a very common issue. But i need some expertise on this current issue i m facing with my car. I bought it and it comes with these issues at the moment it looks like a sensor/unit error. I tried it with a snap-on Scanner. However i was not sure should i just buy the unit or it needs cleaning or reset. The picture will show all the codes:U145CFA (Implausible Data Were Received From The Control Unit 'DISTRONIC’ Current, Stored.)

U109800 (The Control Unit 'DISTRONIC' Is Reporting A Malfunction. - Current, Stored)

U145CE4 (Implausible Data Were Received From The Control Unit DISTRONIC. Current, Stored.)

U145CE6 (Implausible Data Were Received From The Control Unit DISTRoic. Current, Stored.)

U145C6 (Implausible Data Were Received From The Control Unit DISTRONIC. Current, Stored.)


is these sensor or unit is in the front of the car or something else, WOULD I NEED TO RECALIBRATE is so how can i calibrate it.

how hard and difficult it is to get to that sensor do i need to take part alot of things to reach it or replace it

most definitely where can i find the right one for my car which will work without any modifications are there any better options out there

one more thing


I also getting fault in the scanner. Which is this one is that mean the circuit is located. Or mi missing some coolant in the low temp reservoir.



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Old Jul 31, 2024 | 11:49 AM
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w222 550
I'd test the battery first. I had some random errors popping up and it turned out to be the battery was dying. Swapped it out all of them cleared. Good luck
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Old Aug 2, 2024 | 03:55 AM
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Mercedes benz s550
The auxiliary battery?

Originally Posted by nybenzo
I'd test the battery first. I had some random errors popping up and it turned out to be the battery was dying. Swapped it out all of them cleared. Good luck

the battery you are saying is the one auxiliary one or the main. The car starts fine. My car alignment is off. In the beginning it showed DTM after clearing them mow I dont get that error. Just wanted to know is the module needs replacing or i just need to calibrate it. I will chexk the battery after knowing which one. I m aware you might be talking about the aux battery
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Old Aug 2, 2024 | 08:34 AM
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Correct, a low aux battery will disrupt features like Distronic and radar-sensing.
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Old Aug 2, 2024 | 07:42 PM
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Originally Posted by Tom in Austin
Correct, a low aux battery will disrupt features like Distronic and radar-sensing.

would it by chance give me a code or something in the scanner. I see nothing however i will check the scanner and test the battery if that is it will save me alot of hassle for the sensor re calibration and finding the one.


if the auxiliary battery is the issue i will hands down give a $20 gift card
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Old Aug 2, 2024 | 09:07 PM
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Mercedes benz s550
The update on the current situation

Yeah. I wanted to share the message however the code shows it has distronic error but DISTRONIC is gone left with only these

Error on the dash

Parking sensor beeps on close range

Still not sure
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Old Aug 10, 2024 | 03:12 AM
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I need to know how the sensor looks and the part number

BUMP!




Please let me know which sensor it can be for my issue
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Old Aug 10, 2024 | 11:25 PM
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I have the same message display as your top and middle photo, but no others.

I put off checking with my Indy but will next week and share what I learn.
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Old Jan 26, 2025 | 11:48 PM
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Did you ever resolve this issue? Running into same problem
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Old Jan 27, 2025 | 02:04 AM
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Originally Posted by MercBenz22
Did you ever resolve this issue? Running into same problem
No but did confirm the codes were not capable of shutting down the car. All tied to convenience features and not safety or performance.
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Old Jan 27, 2025 | 08:30 AM
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Here ya go ... $39.99 and a couple hours work ....
Amazon Amazon
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Old Jan 27, 2025 | 02:29 PM
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Originally Posted by Tom in Austin
Here ya go ... $39.99 and a couple hours work .... https://www.amazon.com/dp/B00K537T9C...fed_asin_title
Are you suggesting swapping out the battery to the AGM battery or connecting them in parallel for testing? I thought the aux battery was Li-Ion.
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Old Jan 27, 2025 | 04:24 PM
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Yes, I was suggesting to try a new aux battery if he hasn't already. On a S550 OEM is traditional lead acid, and AGM is now the preferred technology.

AFAIK, only certain AMG models come with Li-ion batteries
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