S-Class (W222) 2014-2020

Strange Turn Signal Message

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Old 06-09-2024, 07:01 PM
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Strange Turn Signal Message

I知 getting a message on my dash that indicates that I should check the right rear turn signal. Funny thing is, it appears that all turn signal indicators on both the right and left side are fine. Anyone got any idea what might be going on?
Old 06-10-2024, 07:35 AM
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Originally Posted by ElastomerGuy
I知 getting a message on my dash that indicates that I should check the right rear turn signal. Funny thing is, it appears that all turn signal indicators on both the right and left side are fine. Anyone got any idea what might be going on?
Time to plug a scanner in and see if there are stored codes, it might have a more detailed message of what might be wrong.
Old 06-10-2024, 08:04 AM
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I think I myself would gently remove the panels in the trunk and do some connector removal and cleaning and reconnecting on any black boxes you find in there.

Old 06-10-2024, 10:09 AM
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Originally Posted by Katie22
I think I myself would gently remove the panels in the trunk and do some connector removal and cleaning and reconnecting on any black boxes you find in there.
That gives me an idea, might be a battery issue. How old is the battery OP? MBs are very particular with the battery and their electronics are therefore sensitive.
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Old 06-10-2024, 11:10 AM
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Oh one more thing. Under the seats are often the modules for many things for the car. The connectors to the black boxes are often a cause of problems because the SEATS move a lot forward and backwards ect.

ON my GTC for example the steering column stopped going up and down and sure enough a connector under the seat needed to be cleaned and reconnected.
Old 06-10-2024, 01:13 PM
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PFL205.064 with M276.823 (Oil pump solenoid defeated)
Originally Posted by Katie22
Oh one more thing. Under the seats are often the modules for many things for the car. The connectors to the black boxes are often a cause of problems because the SEATS move a lot forward and backwards ect.

ON my GTC for example the steering column stopped going up and down and sure enough a connector under the seat needed to be cleaned and reconnected.
That is true, been there done that glad you mentioned it! Hopefully that solves OP's problem!
Old 06-10-2024, 09:26 PM
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Something is going on in the CAN bus.
ECU send message to rear light to turn on or off but an improper message is received back from the tail light.
Old 06-11-2024, 03:45 AM
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Thanks for the suggestions, everyone. I知 going to do some investigating and connector cleaning this weekend. I presume the battery is original so 5 years old. I値l check that out as well. Again, thanks to everyone who responded.
Old 06-11-2024, 09:06 AM
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Originally Posted by ElastomerGuy
Thanks for the suggestions, everyone. I知 going to do some investigating and connector cleaning this weekend. I presume the battery is original so 5 years old. I値l check that out as well. Again, thanks to everyone who responded.
You're most welcome! Hopefully you figure it out please keep us posted.
Old 06-16-2024, 06:04 PM
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I asked the Benzninja if he might be able to help me with this issue. After he connected up with my car, in about 10 minutes, he had the issue resolved. He said the issue was that the MB sensors are sometimes too sensitive. So, he reset the error. Has not yet reoccurred so hopefully it's fixed for good. The Benzninja really knows his stuff.
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