E-Class Coupe (C207) & Cabrio (A207) 2010-: E250CDI Coupe, E350 Coupe, E350CDI Coupe, E500 Coupe, E550 Coupe [Coupes & Cabriolets]

My "new" Benz

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Old Jul 12, 2023 | 04:17 PM
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2012 E350 Cabriolet
My "new" Benz

I just purchased a 2012 E350 Cabriolet with 41,000 miles on it. The car is beautiful and runs great but I get a "Distronic Plus Inoperative" warning on the dashboard when I try to engage the cruise control. Can anyone advise a solution? TIA
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Old Jul 13, 2023 | 12:09 PM
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2012 E350 Cabriolet now SOLD to my son
Originally Posted by Timbo41
I just purchased a 2012 E350 Cabriolet with 41,000 miles on it. The car is beautiful and runs great but I get a "Distronic Plus Inoperative" warning on the dashboard when I try to engage the cruise control. Can anyone advise a solution? TIA
This is typical symptom that the auxiliary battery failed. It runs the ancillary systems, like distronic, lane assist etc. It is separate from the main starting battery which is under the hood. It may be located in the dash on the drivers side behind a panel for your model and year. You can order from many places or get it from MB. $$$ .if MB. Install is not difficult but a little time consuming as ther isnt a lot of room there..

Post up pics and welcome to the forum !!!!
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Old Jul 13, 2023 | 01:57 PM
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E350 Cabriolet
Could be the sensors

I too have a 2012 E350 Cab and saw the same message a while ago. If your car has 6 round sensors in the front bumper they could be dirty or waxed over. If they are dirty Distronic will not function. I cleaned mine with a wet cloth and the message disappeared and has not returned. Hope this simple solution works.

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Old Jul 13, 2023 | 04:21 PM
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2012 E350 Cabriolet
Thanks for the info, I’ll check the sensors out. With this Distronic inoperable I’m assuming that the cruise control will not work,correct?
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Old Jul 13, 2023 | 06:00 PM
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E350 Cabriolet
Cruise control

My car does not have ACC so the cruise control was not affected.

On another subject, I recently replaced the main battery after six years of use. Some threads on YouTube suggest a new battery must be "programmed" after it is installed. Others suggest that if the car is without battery power for under 10 minutes nothing needs to be done after installation. I found the latter to be correct. Only the clock was off by some minutes and it reset itself. If a dealer or indy tries to charge you for some programming of a new battery find another installer. I used an Interstate Battery instead of a Bosch that was installed by a dealer in 2017. If you can find an Interstate dealer you might save $100 plus tax as I did.
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Old Jul 14, 2023 | 09:38 PM
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2021 c300 Cab. Arrived 7/28/21 . 24 GLE 450e.
I guess I’m confused. How could you have the message Distronic Plus Inoperative" if you don’t have ACC?
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Old Jul 15, 2023 | 11:39 AM
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E350 Cabriolet
Be mot confused

E,

You are right. I guess it was a different message I eliminated by cleaning the sensors.
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Old Jul 18, 2023 | 09:06 PM
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2012 E350 Cabriolet
On another topic related to the same car…I have some wood trim on the interior doors & dash that have come loose or come off all together. I tried crazy glue but that didn’t work. Is anyone aware of an automotive adhesive that would do the trick? Thanks in advance.
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Old Jul 19, 2023 | 03:20 AM
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Originally Posted by Timbo41
On another topic related to the same car…I have some wood trim on the interior doors & dash that have come loose or come off all together. I tried crazy glue but that didn’t work. Is anyone aware of an automotive adhesive that would do the trick? Thanks in advance.
I like this product.

https://a.co/d/2JTuIUE

The way I use it is cut small squares and place them a few cm or inches apart. Don’t need to put long strips.

I haven’t tried automotive adhesive for any project but if the tape is too thick then you may need to try an adhesive.

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