E-Class (W212) 2010 - 2016: E 350, E 550

Dynamic seat controls not working

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Old 06-11-2022, 12:27 AM
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2012 E350 (W212)
Exclamation Dynamic seat controls not working

When I bought the car, I didnt know about the dynamic seat controls until I looked at a video showcasing it. Went to go try it out and the dynamic seat controls don't work and there aren't any lights on the controller itself. The 30 amp fuse is fine from the rear on #60 is fine. Was wondering if anyone knows what's wrong with it?

Last edited by BlandestRamen; 06-11-2022 at 12:29 AM.
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Old 06-11-2022, 07:36 AM
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2014 E550-sold 😩
Have you scanned for specific codes related to the dynamic seat operation? Start there.
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Old 08-21-2022, 04:34 PM
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2011 E350 4MATIC
Dynamic Seat Benefits

My pre-owned W212 E350 Wagon came with the
Active Bolster / Massage features (but not the
ventilated feature), and I LOVE the massage!
in fact, I’m already spoiled & will only consider an E going forward into the future if it has that option.
I encourage you to sort it out & enjoy!
Jack / Jaxview / San Francisco
Old 08-22-2022, 10:43 AM
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2015 E350 4Matic Wagon, 2018 GLE350 4Matic
This is probably a stretch but may be worth trying: disconnect both the main and auxiliary batteries, charge them both, and reconnect. I had a low main battery event cause my driver's door window switch cluster to stop working. When I scanned it I got a code that said something to the effect that the "connection has been lost". Charging and disconnecting the batteries individually did not resolve this, they both had to be disconnected at the same time before it reset.
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Old 08-22-2022, 01:07 PM
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MY'14 W212 M276 3.5NA @55kMi
Reboooot.... 👏

Originally Posted by up_too_late
This is probably a stretch but may be worth trying: disconnect both the main and auxiliary batteries, charge them both, and reconnect. I had a low main battery event cause my driver's door window switch cluster to stop working. When I scanned it I got a code that said something to the effect that the "connection has been lost". Charging and disconnecting the batteries individually did not resolve this, they both had to be disconnected at the same time before it reset.
aka a whole "car reboot".... Beneficial once or twice per month.
This effectively clears stupid peripherals like SAM's that waste CPU cycles of VIP modules

The suggestion of this temporary quick-fix came to us courtesy of @bmwpowere36m3It's perfect to sanitize a car in 10mn !


Last edited by CaliBenzDriver; 08-22-2022 at 01:47 PM.
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Old 09-12-2022, 04:31 PM
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Welp found the reason for the controls to not be working. I tried taking out the controller to see what was under it and long and behold it wasn't even connected. When i connected it all the lights popped and now works like a charm now. Kinda cheesed that it wasn't connected in the first place.

thanks for all the suggestions tho.
Old 09-12-2022, 04:43 PM
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MY'14 W212 M276 3.5NA @55kMi
serious luck!

Originally Posted by BlandestRamen
Welp found the reason for the controls to not be working. I tried taking out the controller to see what was under it and long and behold it wasn't even connected. When i connected it all the lights popped and now works like a charm now. Kinda cheesed that it wasn't connected in the first place.

thanks for all the suggestions tho.
Congrats for scoring big time ! 👏
Now buy a scanner with some of the savings.

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