M-Class (W166) Produced 2012-2015

Rear Heated seats don't work

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Old 03-15-2021, 06:18 PM
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GLE450 W167, W166 ML350 Bluetec, CLS550 w218,
Exclamation Rear Heated seats don't work

Hello, in my 2015 ML350 Bluetec rear heated seats sometimes work and sometimes don't. I don't know how to explain this but sometimes when I start the car they work fine without any issues, but sometimes they won't heat at all and the red lights on the button don't work either. I suspect there is a wire/connection problem, could this be it?

thank you
Old 03-16-2021, 10:33 AM
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W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, C5 Z06 & IS300 race cars, EQE 4Matic+ on order
Based on the symptoms you're describing, an intermittent bad connection somewhere is the most likely culprit. Reseat the fuse and see if that resolves it.
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Old 03-16-2021, 09:45 PM
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Originally Posted by ikako11
Hello, in my 2015 ML350 Bluetec rear heated seats sometimes work and sometimes don't. I don't know how to explain this but sometimes when I start the car they work fine without any issues, but sometimes they won't heat at all and the red lights on the button don't work either. I suspect there is a wire/connection problem, could this be it?

thank you
Has to be a bad connection under the seat. 99% sure.

Also, I had no idea the ML’s had heated rear seats! Cool!
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Old 03-19-2021, 06:06 AM
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Originally Posted by C280 Sport
Has to be a bad connection under the seat. 99% sure.

Also, I had no idea the ML’s had heated rear seats!

Cool!

You mean "Hot" LOL
Old 03-19-2021, 11:37 AM
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Too many german broads
Hmm, I need to make sure mine work!

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