M-Class (W166) Produced 2012-2015

Whazza Reductant Heater?

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Old 06-24-2018, 09:23 AM
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Whazza Reductant Heater?

I've got a P20BE Reductant Heater "B" Control Circuit Performance.
She's booked at the dealership Tuesday and still covered by the extended warranty, but I'm curious as to which heater this refers to. Adblue?
Old 06-28-2018, 05:03 PM
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Wow, so many responses, I dunno where to start *rolls eyes LOL*

Dealer just got back to the wife, $4k CAN to fix it. Covered by our extended warranty which runs out in October. Still don't know what exactly crapped out, but I'll report back when I have the dealer invoice in hand.
Old 06-28-2018, 10:24 PM
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Originally Posted by peter2772000
I've got a P20BE Reductant Heater "B" Control Circuit Performance.
She's booked at the dealership Tuesday and still covered by the extended warranty, but I'm curious as to which heater this refers to. Adblue?
Yes, Adblue, DEF, urea, reductant, lots of names for it. It will freeze around -11C, so it has to be heated in the winter.
Old 06-29-2018, 07:30 AM
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Thx for the reply. Incredible, the truck only has around 25k miles on her. $4k. Wow, nuts.

I've checked on Ebay and there are vendors selling EGR/DEF/DPF/Swirl valve delete retunes. They're looking better and better every day...
Old 06-30-2018, 07:21 PM
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If you're still under warranty.... big deal! Get it done... After all the posts of ml350s' problems, be happy with your expenditure on extra warranty. That said, I do my own work on my vehicles, wouldn't think of owning a Benz without warranty!!! Absolute nonsense for most of the electrics/sensors failure for today's world. And... electronics, be what they may, are worth .02 on the dollar. Unfortunately, companies know it... pay up!
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Old 07-01-2018, 07:37 AM
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Old 07-02-2018, 12:31 AM
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Whazza Reductant Heater?-owthivs.jpg
Old 07-02-2018, 10:25 AM
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Now THAT is funny LOL
Old 07-03-2018, 01:14 PM
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Originally Posted by peter2772000
Wow, so many responses, I dunno where to start *rolls eyes LOL*
It must be your magnetic personality.

Originally Posted by peter2772000
I've checked on Ebay and there are vendors selling EGR/DEF/DPF/Swirl valve delete retunes. They're looking better and better every day...
So is mandatory incarceration for people that make them as well as those that use them. Steep fines are apparently not enough of a deterrent.

Were you born being a douche bag, or is it something you acquired and cultivated over the years?

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